Imported Upstream version 93u+upstream

1 files changed, 2888 insertions, 0 deletions

diff --git a/src/cmd/ksh93/RELEASE b/src/cmd/ksh93/RELEASE
new file mode 100644
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--- /dev/null
+++ b/src/cmd/ksh93/RELEASE
@@ -0,0 +1,2888 @@
+12-02-29  --- Release ksh93u+ ---
+12-02-29  A bug which could lead to a core dump when more that four shared
+	  libraries were added with the builtin command has been fixed.
+12-02-29  Fixed a few bugs which caused SIGCHLD to be blocked preventing
+	  background jobs from being reaped until a foreground job was run.
+12-02-27  A bug in which sh -c for a simple command caused a fork() has been
+	  fixed.
+12-02-27  A timing bug on systems such as AIX that doesn't support vfork()
+	  that could cause the exist status to get lost has been fixed.
+12-02-22  A private file descriptor that was not close-on-exec for a command
+	  substitution and has been fixed.
+12-02-14  A bug in which ^Z did not stop a pipeline when the last component
+	  was a shell built-in has been fixed.
+12-02-14  getconf("PATH") used to initialize ed(1) path.
+12-02-13 +In earlier version read from standard input would fail when called
+	  from the KEYBD trap.  Now read options -N, -n, and -t should work
+	  when called from a KEYBD trap.
+12-02-13  If FCEDIT is not set and fc is invoked without the -e option,
+	  ed will be invoked if found instead of /bin/ed. 
+12-02-10  Another bug in the saving and restoring of IFS in a subshell
+	  that caused a core dump has been fixed.
+12-02-08  A bug in which .sh.fun disciplines could be cleared after a
+	  function completes has been fixed.
+12-02-08  A bug in job control in which the foregroup process group was not
+	  set correctly after restarting a stopped pipeline has been fixed.
+12-02-07  A bug in which numbers with leading zeros could be treated as
+	  octal constants outside of ((...)) has been fixed.
+12-02-06  A bug in arithmetic with compound variables containing multiple
+	  array elements has been fixed.
+12-02-02  A bug in the ulimit option table was fixed.
+12-01-26  A bug in which a set command that did not change monitor could
+	  effect the behavior of the monitor when monitor mode is on is fixed.
+12-01-21 +You can now test whether the shell implements a math function using
+	  typeset -f .sh.math.name, where name is the name of the function.
+12-01-21  A bug in which typeset -L and typeset -R did not handle multibyte
+	  characters correctly has been fixed.
+12-01-20  A bug that could cause the shell to hang waiting for an incorrect
+	  job pid has been fixed.
+12-01-19  A memory leak which occured for a nested command subtiution has been
+	  fixed.
+12-01-17  A bug in which typeset -u PS1 could enable the uppercase attribute
+	  for some other variables, for exampe, HISTFILE has been fixed.
+12-01-16  A bug in which .sh.match was not correct after a substring match when
+	  the replacement string contained a substring match has been fixed.
+12-01-12 +Files that are sourced from profile files are now read and executed
+	  one command at a time so that alias definitions take effect as they
+	  do for profile files.
+12-01-12  A bug in which whence -p would find a function if one existed and
+	  there was no command of that name on PATH.
+12-01-11  Change b_* prototype (int, char**, void*) => (int, char**, Shbltin_t*).
+12-01-05  A bug in which read was not terminating for a signal that had a trap
+	  set has been fixed.
+12-01-01  A timing problem with >; has been fixed.
+12-01-01  A macro expansion memory leak has been fixed.
+11-12-26  A bug in array assignments of the form arr=( $arr[i] ...) in which
+	  arr was not unset before the assignment has been fixed. 
+11-12-20  A number of code changes were made based on the results of errors
+	  indicated by static code analysis.
+11-12-13  In vi edit mode a lteral <TAB> can now be entered by preceding it
+	  with a backshash.
+11-12-13  When tab is entered for completion after a ' or ", the ' and "
+	  characters are no longer deleted.
+11-12-07  A bug in which a program in the current direcotry with a . in the
+	  name could fail to execute when both PATH and FPATH end with :. has
+	  been fixed.
+11-12-07  I fixed a bug in which a variable expansion in a large here-document
+	  could be expanded to a null string.
+11-12-06  An optimization to read was added in the case the the read command
+	  was redirected from a file.
+11-12-06  Changes were made to make the line limit for read unlimited by
+	  default.
+11-12-05  A bug in which unsetting an array variable did not completely clear
+	  the variable in some cases has been fixed.
+11-12-02 +The printf alternative character # when applied to the %q format will
+	  quote argument in a form suitable for a field in a .csv format file.
+11-12-02 +A -S option was added to read to be able to read .csv format files.
+11-11-28  A bug in which redirection of standard error in a function called from
+	  command substitution caused standard error to be lost has ben fixed.
+11-11-21  [[ (-n foo) ]] no longer requires a space before (.
+11-11-11  The readonly attribute for a variable now applies to compound
+	  assignments to that variable.
+11-11-07  Changes were made to reduce the stack size to allow deeper function
+	  recursion.
+11-10-10 +Added alternate flag to printf %H for encoding of URI's.
+11-10-10  A bug which could lead to a core dump when the shell was invoked
+	  with more than twenty five open files has been fixed.
+11-10-06  A bug in the scoping of name references in functions called by other
+	  functions has been fixed.
+11-10-05  A bug in which wait on a pid may return the exit status of an
+	  earlier background job with that pid instead has been fixed.
+11-09-22  A bug in which a read timed out with TMOUT did not always restore
+	  the terminal state has been fixed.
+11-09-21  An optimization that allowed the last command in a script to use
+	  the same process id as the script has been eliminated.
+11-09-21  Added letoctal option that enables the let command to recognize
+	  octal constants starting with 0.
+11-09-20  A bug in which ${var.} could cause a core dump has been fixed.
+11-09-20  A bug with SHOPT_EDPREDICT when neither vi or emacs was enabled for
+	  lines beginning with # when in a multibyte locale has been fixed.
+11-09-20  A bug in emacs edit mode with SHOPT_EDPREDICT that would cause
+	  history searches matching comments lines to generate predictions
+	  has been fixed.  Only user typed comment lines generate predictions.
+11-09-20  A bug in emacs edit mode with a search that matches a comment line
+	  that could cause a core dump has been fixed.
+11-09-16  A bug in which a command name ending in .. could cause the shell to
+	  abort has been fixed.
+11-09-16  The characters ! + - % and @ in file names are no longer escaped with
+	  file name completion.
+11-09-13  The let command no longer treats numbers starting with 0 as octal
+	  constants.  
+11-09-08  A bug in which printf "%R" could cause a core dump for invalid shell
+	  patterns has been fixed.
+11-08-09  With set -u, ${var#pattern} reported that var was unset for special
+	  variables.
+11-08-03  A bug in which the shell did not preserve the exit status for a
+	  coprocess has been fixed.
+11-08-02  A bug in the saving and restoring of IFS in command substitution that
+	  caused a core dump has been fixed.
+11-07-21  Modified the 10-08-27 bug fix so that background jobs started in for
+	  and while loops created interactively generate completion messages.
+11-07-20  I fixed a bug in here documents in which multi-byte characters that
+	  crossed buffer boundaries were not processed correctly.
+11-06-22  The shell compiler now supports process substitution.
+11-06-22 +Added code to support process substitution on systems that do
+	  not supply the /dev/fd directory.
+11-06-21  Fixed extraneous jobs Done messages when builtin is at the end of a
+	  pipeline.
+11-06-20  Fixed two regression tests.
+11-06-20  Fixed a bug introduced on last update.
+11-06-14  A bug with pipefail in which the shell would wait for background
+	  jobs to complete has been fixed.
+11-06-09  A bug which caused the options.sh regression test to fail on OS390
+	  Linux has been fixed.  The bug could also have affected other systems.
+11-06-07 +A number of changes to support the still undocuments namespace option
+	  have been added.
+11-06-06  A bug in which command substitution of eval would hang when it  had
+	  standard error redirected to standard output has been fixed.
+11-06-01  A bug in case statement fall through (;&) ignoring set -e was fixed.
+11-06-01  A bug in which creating a left or right justified upper or lowercase
+          variable with an empty string has been fixed.
+11-06-01  A bug in which the .paths directory wasn't read when a subshell was
+	  executed before any other command has been fixed.
+11-05-31  The shell now gives an error when a type variable is assigned to
+	  an array instance when the array has been declared a compound variable
+	  array.
+11-05-31  A bug in which typeset -m of an array instance did not remove the
+	  original instance has been fixed. 
+11-05-28  A bug in which typeset -m dest=src fails when src and are passed as
+	  name references was fixed.
+11-05-28  A bug in which typeset -m "c.board[1][i]=el", where el is a compound
+	  variable core dumps has been fixed.
+11-05-28  Two bugs in the display of arrays of compound variables with print -v
+	  have been fixed.
+11-05-27  A bug with command substitution with the shift jis locale has been
+	  fixed.
+11-05-25  A bug in which unset -f foo, called within function foo could cause
+	  the shell to core dump has been fixed.
+11-05-24  A bug in unsetting arrays of compound variables that could lead to
+	  a core dump has been fixed.
+11-05-24  A scoping bug in with typeset -m for variables passed as references
+	  has been fixed. 
+11-05-09  A bug in which 'typeset +p array[$i]' in a subshell could cause an
+	  exception has been fixed.
+11-05-03  Two more scoping bugs with name references and read -C were fixed.
+11-05-03  A potential race condition which occurs when here-documents are
+	  processed in asynchronous blocks has been eliminated.
+11-05-02  Another scoping bug with name references defined in a function has
+	  been fixed.
+11-05-02  A bug in which the shell discards saved exit status of a job if it is
+	  followed by a subshell execution has been fixed.
+11-04-28  The shell now checks for numerical overflows with process ids.
+11-04-28  Another scoping bug with compound variables defined by name references
+	  inside a function has been fixed.
+11-04-28  A bug which caused a core dump on 32 bit systems with the basic.sh
+	  regression test has been fixed.
+11-04-27  A scope binding error for name references has been fixed.
+11-04-27  Assignment of compound variable to compound array element by name
+	  is now working.
+11-04-26  I fixed a bug with SHOPT_FIXEDARRAY compilation that could cause
+	  an a core dump for not fixed arrays.
+11-04-25  A bug in the references to two dimensional compound arrays has
+	  been fixed.
+11-04-20  A bug in which a name reference to a multidimentional index array
+	  index, nameref x=foo[3][4], did not work correctly has been fixed.
+11-04-18  Changes were added to allow fixed size arrays of variable sized
+	  objects when the SHOPT_FIXEDARRAY compile option defined on 10-09-28.
+11-04-18  A bug in which name references to array elements could fail has
+	  been fixed.
+11-04-15 +A compile option, SHOPT_2DMATCH, has been added which causes
+	  .sh.match to be a two dimensional array after ${var//pat/str} 
+	  where the first dimension is the pattern number and the second is
+	  the match instance.
+11-04-11  A bug in which readonly var, where var is exported could cause var
+	  to be unset has been fixed.
+11-04-06  A tokenizer bug in which ${x/{3}(\d)/ } would cause in infinite
+	  loop has been fixed.
+11-04-05  A bug in which ${!x.} could cause a core dump has been fixed.
+11-04-04  A bug in which cleaning out the history file could terminate before
+	  keeping all the recent history events has been fixed.
+11-03-29  A bug in which ${#array[@]} was 1 rather than 0 after issuing
+	  typeset array[7] has been fixed.
+11-03-29  The subscript out or range message for fixed arrays has been fixed.
+11-03-29  A bug in which suspend could cause a core dump has been fixed.
+11-03-24  For the showme option added 09-09-09, commands beginning with a ;
+	  inside an arithmetic for loop, no longer produce syntax errors.
+11-03-18  A bug in _WINIX ~domain/user expansion has been fixed.
+11-03-16  A bug in the pipefail option which could cause a script to hang
+	  has been fixed.
+11-03-12  The shell no longer treats ${##pattern} as a syntax error.
+11-03-11  A bug in typeset -u on systems that don't supply the towctrans()
+	  function has been fixed.
+11-03-11  A bug in which a compound assignment of the form var[sub]=(...)
+	  would evaluate sub for each assignment has been fixed.
+11-03-07  A bug in which reassigning a compound variable to an associative
+	  array index could incorrectly increase the count of the number
+	  of elements has been fixed.
+11-03-04 +The tilde expansion on windows has been modified to handle user
+	  names of the form domain/user so that ~domain/user now expands
+	  to the home directory of that domain user.
+11-03-03  A bug in which the width of the prompt was calculated incorectly
+	  which cause the wrong line length for edit commands has been fixed.
+11-03-02  A bug in which a global variables set from within a function inside
+	  a subshell can leave side effects in parent shell has been fixed.
+11-03-01  A bug in which whence -a could dump core when the first match
+	  was due to : in PATH and the program was in the current directory.
+11-02-28  A bug in emacs mode with SHOPT_EDPREDICT (added on 10-05-20) which
+	  disabled prediction on a line starting with # when the cursor was not
+	  at the end of line has been fixed.
+11-02-28  The output format for compound variables with set has been fixed.
+11-02-25  A bug which could lead to a core dump occurred when a shell script
+	  without #! is invoked by name from a parent shell that has name
+	  references defined and the script creates name references of the
+	  same name.
+11-02-21  The shell now fails with a syntax error when a here-document in a
+	  command substition is not completed before the closing ), for
+	  example, $( foobar <<! )
+		here_doc
+	  !.
+11-02-18  A bug in which the value of $0 in a function defined by name()
+	  was changed to name has been fixed.
+11-02-17  A bug in which the declaration typeset var[100] did not work
+	  correctly has been fixed. 
+11-02-15  A bug in which [[ -v sh.match ]] did not work correctly has been
+	  fixed.
+
+11-02-08  --- Release ksh93u  ---
+11-02-08  A bug in which opening standard output after it has been closed with
+	  exec 1>&- doesn't work has been fixed.
+11-02-07  A bug on some systems for which a command subtitution could hang
+	  has been fixed.
+11-01-28  A bug in file name completion for files containing both multibyte
+	  characters shell special characters has been fixed.
+11-01-18  The .sh.match variable now shows elements that do not match as
+	  as not set rather than an empty string.
+11-01-18  A bug with typeset -m of an array into an element of an indexed
+	  array has been fixed.
+11-01-13  A bug in handling of arrays of compound variables inside ((...)) which
+	  reported a syntax error been fixed.
+11-01-10  A bug in arithmetic assignment operators of the form op= for array
+	  variables when the same array was referenced on the left and the
+	  right hand side with different indices has been fixed.
+11-01-10  A bug in which the output of time was lost when { time...;} 2>&1
+	  occurred inside command substition has been fixed.
+11-01-07  [[ -v sh.match[i] ]] was returning false when sh.match[i] was set.
+11-01-05  Added and modified warning messages with sh -n.
+11-01-02  Fixed bugs with typeset -l/-u/-M and arrays.
+10-12-28  Fixed a bug with typeset -l/-u/-M values in arithmetic expressions.
+10-12-26  Fixed a time parsing bug in sleep and localeconv() initialization.
+10-12-23  Prevented the shell from generating a core dump when it sends itself
+	  a termination signal because the last command terminated with that
+	  signal.  This prevents a core dump to be overwritten by the shell.
+10-12-22  A bug in the expansion of  ${A[@]} ${B[@]}, introduced in 10-12-01
+	   when A="" B=B has been fixed.
+10-12-21 +Use MS_3D in b_vpath() for setting win32 WoW mount defaults.
+10-12-17  A bug in the expansion of ${var:i:j} which caused a core dump when
+	  i > ${#var} has been fixed.
+10-12-16 +sleep now treats . as decimal point even in locales that use comma.
+10-12-16 +typeset -M mapname was added to generalize on toupper and tolowwer
+	  mapping as provided with wctrans(). 
+10-12-10  A bug in which typeset -l displayed namespaces as well as lower case
+	  variables has been fixed.
+10-12-06  A bug in which a pipeline could terminate prematurely for a pipeline
+	  whose right hand side is a builtin, and whose left hand side ends in
+	  a simple command that has standard output redirected has been fixed.
+10-12-06  A bug in hexfloat assignments when the right hand side is a string
+          variable starting with 0x has been fixed.
+10-12-01  A bug in the expansion of ${$1+"$@"} which causes the last positional
+	  parameter to disappear when it is empty has been fixed.
+10-12-01  A number of changes were made to reduce the startup time.
+10-11-29  When wait is interrupted by a signal that is caught, it now exits
+	  with a non-zero exit status.
+10-11-29  When a variable is used directly in an arithmetic expression,
+	  leading zeros no longer cause the value to be treated as an
+	  octal constant.  This was true in previous versions for justified
+	  variables.
+10-11-29  An incorrect warning message was eliminated with the -n option for
+	  arithmetic expressions with associative arrays.
+10-11-29  Some changes were made to slightly reduces startup time.
+10-11-24  A bug in which a name reference is make to arr[0] when arr is not
+	  an array has been fixed.
+10-11-23  If a type definition is made without a compound variable assignment it
+	  produces an error message and no longer shows up as a defined type. 
+10-11-22  The handling of \ inside [...] for for shell and ~(E) patterns has
+	  been fixed.
+10-11-22  A patch was made to pfsh to handle an error case.
+10-11-22 +Modified types defined in namespace so that they do not clash with
+	  types in other namespaces.  Types can be referenced using
+	  .namespace.typename.
+10-11-22  A bug which caused functions addressed as .namespace.funct to not
+	  work has been fixed.
+10-11-22  A bug in which if nr was a name reference to an unset associative
+	  array subscript, then ${!nr} did not output the subscript correctly
+	  has been fixed.
+10-11-18  A bug in which shcomp -n was not processing double quotes correctly
+	  has been fixed.
+10-11-18  Fixed a bug in which typeset -T foo; typeset -T could cause a
+	  core dump.
+10-11-17  Fixed a bug in which the error message for set -u could come out
+	  garbelled.
+10-11-17  Modified the parser so that typeset -a var=(...) no longer checks
+	  the first index for aliases and reserved words.
+10-11-17  A bug in which a subshell command consisted of only a for or until
+	  command has been fixed.
+10-11-16  Fixed a bug in which typeset -u would display namespace variables
+	  as well as upper case variables.
+10-11-16  A bug which could cause a core dump when unsetting a type variable
+	  when there are references to type elements has been fixed.
+10-11-15  A bug which could cause a core dump when unsetting a compound
+	  array variable when there are references to array subscripts has
+	  been fixed.
+10-11-15  A bug in which using typeset -m to move an indexed array instance
+	  to another array could cause the array to display incorrectly has
+	  been fixed.
+10-11-12  A bug in which the unset discipline function for a type is called
+	  when the type is initialized has been fixed.
+10-11-12  The sequences \< and \> are now preserved after patterns containing
+	  ~(E) in ${var/pattern/string} expansions.
+10-11-11  A bug in typeset -m when the variables were compound arrary instances
+	  has been fixed.
+10-11-10  A bug in output of a compound variable with types containing types
+	  has been fixed.
+10-11-10  Fixed ``name=value export [-p]'' to list environment.
+10-11-09  shtests resets SIGPIPE to SIG_DFL for all tests.
+10-11-09  Fixed a bug in expansion of $"..." when used in assignments.
+10-11-09  Fixed a getaddrinfo() memory leak that didn't call freeaddrinfo()
+	  after an interrupt.
+10-11-08  Modified the behavior of set -u so that the shell terminates with
+	  error message when when var is unset with ${!var} and ${#var}.
+10-11-02  Fix a bug in which a signal received while in a subshell could be
+	  ignored.
+10-10-26  Fix a bug where terminal interrupt was ignored while in vi/emacs
+	  edit search mode.
+10-10-26  Fix $'a\0b'c to expand to 'ac'.
+10-10-26  Provide user defined round() if not in <math.h>.
+10-10-26  Fix bug where $((undefined_function(1))) dumped core.
+10-10-22  Provide user defined iszero() if not in <math.h>.
+10-10-22  Fixed a bug with BGX compile option that could cause the shell to
+	  hang.
+10-10-22  Fixed a bug with user define math function on systems for which
+	  char is unsigned.
+10-10-21  A bug in which function autoloaded in a function leaves a file open
+	  has been fixed.
+10-10-20  Modified the behavior of set -u so that the shell terminates when
+	  when var is unset with ${var op string} when op is #, % or /.
+10-10-20  Fixed a bug with the AUDIT option in which the audit file was not
+	  not close-on-exec.
+10-10-20 +Made a number of changes and fixes for the NAMESPACE compile option
+	  which as added on 10-06-09 but some problems still remain.
+10-10-15  Fixed a bug in which arithmetic functions (added on 10-03-24) did
+	  not work when the function definition was in the same compound
+	  command in which the function was referenced.
+10-10-13  A bug in which creating an associative array of compound variables
+	  with no members as an element of a compound variable did not work
+	  has been fixed.
+10-10-08  A bug in which killing the last command in a function defined
+	  with function name, terminated the calling script has been fixed. 
+10-10-08  A bug which could cause a core dump if IFS is unset inside a function
+	  has been fixed.
+10-10-07 +To reduce unwanted side effects, invoking typeset without the export
+	  option and without an assignment now causes the variables to be unset
+	  if the variable is inherited from the environment.
+10-10-06  The closing brace for ${ command } is now a token no matter what
+	  character follows it.
+10-10-04  The change for $'...' expansion on 10-08-09 did not expand parameters
+	  contained in the error message and this has been fixed.
+10-10-04  A bug in which a declaration of indexed array (-a_ in a type
+	  definition would be displayed as a compound indexed array (-C -a)
+	  has been fixed.
+10-09-30  The C99 math function ldexp has been added.
+10-09-30  A bug with two dimensional arrays with expansion of the form
+	  ${ref[0..5]} where ref is a nameref to array[i] has been fixed.
+10-09-29  A bug in which an eval with redirections invoked from a dot script
+	  would not restore the file has been fixed.
+10-09-29  A bug in which loading a function from FPATH could leave a file
+	  descriptor open has been fixed.
+10-09-28 +A new compile option SHOPT_FIXEDARRAY has been added and is being
+	  evaluation.  It allows fixed sized indexed arrays be to defined
+	  using "typeset array[dim1][dim2]...[dimn]".  Fixed sized arrays
+	  are used the same way indexed arrays are.  Currently, only fixed
+	  arrays of fixed objects (float, int, and justifies objects) are
+	  supported.
+10-09-22  A bug which could cause an exception when a function with static
+	  variables was redefined has been fixed.
+10-09-21  A bug in the processing of (command&) which created a job in the
+	  parent process has been fixed.
+10-09-21  A for loop optimization bug with arithmetic expression evaluation
+	  has been fixed.
+10-09-21  A bug in which a recursive function containing a pipeline could
+	  lead to an exception fixed after 8 levels of recursion has been
+	  fixed.
+10-09-18  A bug in which the count of elements in an array was wrong leading
+	  to an exception has been fixed.
+10-09-13  A bug which occurred when both xtrace and showme options where
+	  specified in which the xtrace option disabled showme has been fixed.
+10-09-13  A bug in which creating a reference to an array variable with any
+	  elements could cause subsequent array elements to be treated as
+	  compound variables has been fixed.
+10-09-09  A bug which caused ((c.ar[x][y])) to be treated as a syntax error
+	  has been fixed.
+10-09-08  A bug in the processing of references to multidimensional arrays
+	  in arithmetic expressions has been fixed.
+10-09-08  A bug in the handling of multi-dimensional arrays which caused
+	  the number of elements in each dimension to be incorrect has
+	  been fixed.
+10-09-07  The change for messages on 10-08-09 did not handle message in
+	  assignments and this has been fixed.
+10-09-07  A bug in the indentation of compound variables in arrays when
+	  output with print -v has been fixed.
+10-09-07  A rare bug with indexed arrays when assigned a null string that could
+	  cause a core dump has been fixed.
+10-09-03  A number of changes were made for jobs pools.
+10-08-31  typeset -p was modified to output name references after other
+	  variables so that the output could be used as input.
+10-08-31  A bug with typeset -p in which variables with attributes but
+	  without attributes were not displayed correctly has been fixed.
+10-08-27 +When running a subshell, the current pool is unset.
+10-08-27  A bug in which jobs started from within for or while lists in
+	  interactive shells could generate completion messages has been fixed.
+10-08-25  Fixed a couple of bugs related to job pools. 
+10-08-24 +[[ -e /dev/xxx/ ]] can be used to check whether special files of
+	  those names are handled by the shell.
+10-08-24  A bug in the running of a compiled dot script in which only the
+	  first command was executed has been fixed.
+10-08-23  A bug which sometimes caused a core dump with a configure script
+	  has been fixed.
+10-08-20  A bug in command substitution which caused a configure script to
+	  hang has been fixed.
+10-08-19  Eliminated unnecessary ; from output of compound variable with
+	  typeset -p.
+10-08-17  Fixed a bug in command substitution in which under certain
+	  circumstances a file whose size is a power of 2 plus one, and the last
+	  character was not a new-line, could cause memory corruption.
+10-08-13 +Added static discipline functions to type similar to C++ static
+	  class functions.
+10-08-11  A bug in time when applied to a pipeline in which the shell did
+	  not wait for all elements of the pipeline to complete has been fixed.
+10-08-11  Restored sh_fmtq() quoting to not quote NAME= in NAME=VALUE.
+10-08-09 +Modified the expansion of message strings, $"...", so that they
+	  are expanded each time they are referenced rather than expanding
+	  them when the script is compiled or read in.
+10-08-06 +The process id for jobs in job pools is now of the form poolname.n
+	  where n is the jobid in that pool.  Commands that accept job names
+	  or numbers now understand names in this format.
+10-08-05  A bug in which an assignment from within an arithmetic expression
+	  inside a function would create a local variable has been fixed.
+10-08-04  A bug in the expanding of variables whose names contain multibyte
+	  characters has been fixed.
+10-08-04  A bug which caused an exception when processing scripts compiled
+	  with shcomp -n has been fixed.
+10-08-02  Tests using very small buffer sizes uncovered a number of bug most
+	  connected with here documents which have been fixed.
+10-07-27  The format modifier , used for digit grouping with d and f formats
+	  has been documented.
+10-07-26  cd '' now produces and error rather than changing to the current
+	  directory.
+10-07-26  A bug in multi-byte locales which the last character of a
+	  multi-byte character is a \ or pattern character which could occur
+	  when the character was the last character of a command substitution
+	  has been fixed.
+10-07-23  Another bug in the processing of ${var:offset;len} in multi-byte
+	  locales when len is larger than the number of characters has been
+	  fixed.
+10-07-23  Many coding changes have been made to eliminate most of the uses
+	  of global variables in the shell code.
+10-07-22  Fixed a bug in which discipline functions were not being invoked
+	  when it was invoked as ref.discipline where ref was a name reference
+	  to an array instance.
+10-07-22  Fixed a bug in which discipline functions were not being invoked it
+	  was invoked on a two dimensional array, i.e., arr[5][9].discipline.
+10-07-19  Fixed a buffering problem which occurred when running a script with
+	  ssh and the parent ssh process is killed.
+10-07-14  Modified the parser to treat ((...)) inside [[...]] as ( (...) ) to
+	  that it is a nested (...).
+10-07-09  A bug in the handling of process substitution inside command
+	  substitution as part of a pipeline has been fixed.
+10-07-07  A bug in the output for compound variables containing
+	  multi-dimensional arrays has been fixed.
+10-07-06  ksh now recovers from changes made by bash to the history file without
+	  loosing history commands.
+10-06-25  A bug in which a large here document containing command substitutions
+	  of a dynamically loaded function that contained a here document
+	  could get truncated has been fixed.
+10-06-24  If after executing a script found in FPATH, if a function, builtin,
+	  or type name corresponding to that script is not defined, the shell
+	  now outputs an error message and returns value 126.
+10-06-23  Floating point functions that happened to return integer values
+	  were being treated as if the function returned integers so that
+	  integer division could be used instead of floating point division.
+10-06-22  Fixed a bug in earlier ksh93u in which an arithmetic assignment to a
+	  variable in the global scope would instead create a local variable if
+	  the variable had an attribute but did not have a value.
+10-06-18  Modified trap handling so that if the same signal is received when
+	  executing the handler, it is deferred until the handler completes.
+10-06-16  Fixed a bug in which ulimit -v was setting the the cpu limit
+	  on Linux.
+10-06-14 +The command 'typeset -T' now generates the list of type definitions
+	  in a format that can be used as input to the shell.
+10-06-09  Put in patch from Solaris for output quoting with %q.
+10-06-09 +Made changes to the NAMESPACE compile option so that it now seems
+	  to work.  With this option, namespace <name> { command;} will
+	  run command in the namespace .name so that all variables and
+	  functions created by command are accessible outside the name
+	  space via .name.var and .name.fun.  Variables and functions that
+	  are not in the namespace are not modified when running command.
+10-06-07  Change most internal interfaces to take Sh_t* argument.
+10-06-03 +Types can be loaded on first reference by putting definitions in
+	  PFPATH.
+10-06-03 +The shell is now able to parse commands which use type statements
+	  before the typeset -T command to define the type executes.
+10-06-03  A bug in the quoting for name reference declarations which did
+	  not properly handle [ and ] in subscripts for associative arrays.
+10-06-02  A bug in which a discipline function defined by a type instance to
+	  override the default was not being registered has been fixed.
+10-06-02  A bug in which read -C of an associative array of compound variables
+	  was not working has been fixed.
+10-06-02  A bug in which the error message for an unset parameter with set -u
+	  did not contain the name of the variable has been fixed.
+10-06-01  A bug in typeset -m for moving an indexed array instance to a variable
+	  has been fixed.
+10-06-01  A bug in which caused memory to be freed twice when unset was called
+	  for an indexed array that had get or set disciplines has been fixed.
+10-06-01  A bug in which the %b format of printf was not preserving NUL bytes
+	  with \0 has been fixed.
+10-06-01  A bug in the handling of name references to array variables in
+	  arithmetic expressions has been fixed.
+10-05-28  Fixed bugs in changing attributes for two dimensional arrays.
+10-05-28  Eliminated a few unreferenced variables and a reference to
+	  uninitialized memory.
+10-05-27  Rewrote the subshell code to avoid using pipes an many cases.
+10-05-24  Fixed a bug which cause an exception when both -l and -s were
+	  specified with typeset -i.
+10-05-21  Inputting of three dimensional indexed arrays with ( ( (...)...)...) 
+          was not working and has been fixed.
+10-05-21  A bug in which adding the attributes -Ai to a variable via a name
+	  reference could cause the value to display incorrectly has been fixed.
+10-05-21  A bug in which using $var inside ((...)) did not work when var was
+	  a hex float variable.
+10-05-20 +The compile option SHOPT_EDPREDICT has been added.  When this option
+	  is on, as you type a line beginning with a # the following characters
+	  are treated as a shell pattern and cause matching lines from the
+	  history file to be displayed as a numbered list as you type.
+	  You can scroll up and down this list or you can use <ESC>nTAB
+	  to make this the current line (n defaults to 1 of omitted) or
+	  <ESC>n<cr> to execute.
+10-05-20  A bug which caused an exception when multiple levels of composite
+	  functions in arithemtic expressions has been fixed.
+10-05-19  <<< with an empty string no longer gives an error.
+10-05-19  A bug in arithmetic evaluation when a name reference to an array
+	  instance was used has been fixed. 
+10-05-14  A bug in which the shell treats a valid index array assignment,
+	  typeset -a x=(foo (x=3;y=4) bar) as a syntax error has been fixed.
+10-05-13  A bug in creating name references to associative array variable
+	  after a lookup of one of its elements has been fixed.
+10-05-12  Two bugs in the handling of function static type variables in
+	  subshells have been fixed.  One could cause an exception and the
+	  other would leave side effects in the parent shell.
+10-05-10  A bug in which static variables in functions were not being saved and
+	  restored properly when running subshells has been fixed.
+10-05-05  A bug in which print -v did not work correctly when an operand was an
+	  indexed array element referring to a compound variable has been fixed.
+10-05-05  A change to improve performance by special casing empty string
+	  assignments to avoid repeated malloc() and free().
+10-05-05  A bug in which creating a name reference to a non-existent associative
+	  array element would create the array element has been fixed.
+10-05-04  A bug in which name references to static variables in the static
+	  scope were not found has been fixed.
+10-04-30  Do not use socketpair() on systems that implement ioctl(I_PEEK)
+	  on pipes.
+10-04-29 +When the current job pool is set, coprocess are run in a job pool.
+10-04-28  A type defined with a member foo that is an associative array without
+	  elements followed by an expansion ${bar.foo[a]} and an assignment
+	  bar.foo[a]=b, no longer indicates that ${#bar.foo[@]} has 0 members.
+10-04-27  Another bug in which a nested command substitution could hang if it
+	  generated too much data has been fixed.
+10-04-26  A type defined with a member that is an indexed array without elements
+	  would behave as if the 0th element of each instance was defined after
+	  a non-zero element was specified and this has been fixed.
+10-04-26  A bug in which types defined in a subshell were not undefined when
+	  the subshell completed has been fixed.
+10-04-23  For file completion in commmand line editing, file names starting
+	  with # are now escaped so that they are not treated as comments.
+10-04-23  A bug in which ${t.var:=value}, where t is an instance of a type
+	  variable, could assign value to the type variable rather than to
+	  the type instance has been fixed.
+10-04-23 +Added &| which can be used in place of | to have portions of a
+	  pipeline executed in the pool.
+10-04-22 +The .sh.pool variable was added for use with job pools.
+10-04-22  A bug in which a nested command substitution could hang if it
+	  generated too much data has been fixed.
+10-04-20  A bug which corrupted one byte of memory when read was called with
+	  reads that did not use a delimiter has been fixed.
+10-04-19  The display of a compound variable with an embedded array with
+	  attributes was sometimes not working correctly and has been fixed.
+10-04-16  A bug in which attributes were not be propagated to elements in
+	  an associative array has been fixed.
+10-04-15  A bug which caused scripts containing user defined math functions to
+	  fail to compile with shcomp has been fixed.
+10-04-15 +Job pools have been added with the SHOPT_COSHELL compilation option.
+	  A job pool allows a collection of background jobs to run either locally 
+	  or remotely and to be managed as a unit.  The command '& name ...'
+	  creates or uses a named job pool for subsequent background jobs.
+	  kill, wait, and jobs allow the pool name as operands.
+10-04-14  A bug in which a coprocess connection could terminate prematurely
+	  when running a nested subshell has been fixed.
+10-04-12 +Enumeration constants can be used in arithmetic expressions with the
+	  ==, != and = operators when the left hand side is an enum variable
+	  and the right hand side is an enumeration constant.
+10-04-07  A bug in which setting the trap on CHLD to ignore could cause
+	  an incorrect exit status has been fixed.
+10-04-06  A bug in which LINENO was not incremented for a here-document when
+	  the here-document word was followed by a comment has been fixed.
+10-04-06  The optimization that execs the last process of a script rather
+	  than creating a new process has been removed when a trap on
+	  interrupt has been set.
+10-04-06  Unsetting the 'C', 'A' or 'a' typeset attribute now produces an
+	  error message rather than generating an exception.
+10-04-06  A bug in which .sh.name contained the subscript and .sh.subscript
+	  was empty in some cases with discipline functions on array instances
+	  has been fixed.
+10-04-05  A bug in the edit modes where preceding the interrupt character with
+	  the literal next character did not work has been fixed.
+10-04-05  A bug in the creation of type instances of arrays which could cause
+	  an exception has been fixed.
+10-03-30  A bug in the display of a compound variable containing an indexed
+	  array of compound variables has been fixed.
+10-03-24 +Arithmetic functions can be defined using the shell function syntax,
+	  'function .sh.math.name x y z{...}' , where name is the function name
+	  invoked within ((...)) and x y z are long double arguments passed
+	  as name references.  y and z are used for functions with two and
+	  three arguments respectively.  The value of the function is the value
+	  of the long double .sh.value variable when the function returns.
+10-03-24  A bug in which integer division was mistakenly used when the
+	  numerator was a binary operator with the first operand floating
+	  point and the second integer, e.g. (.1**3)/3, has been fixed.
+10-03-24  The >; file operator was modified so that the temporary file is
+	  created in the same physical directory as file.
+10-03-23  A warning message was added to sh -n when $var was used inside
+	  ((...)) instead of var.
+10-03-19  fmin was added to the list of math function on the man page.
+10-03-19  Fixed the return value for unalias when the alias did not
+	  exist.
+10-03-19  A bug in which the SHLVL variable exported the value it had on
+	  input rather than the incremented value has been fixed.
+10-03-19  A bug which causes whence -q to go into an infinite loop has been
+	  fixed.
+10-03-19  Removed space between Stopped message and (SIGTTIN) and (SIGTTOUT).
+10-03-17  Modified profile shell execution so that when builtins that
+	  correspond to executable have extended attributes, they are
+	  executed by pfksh instead of being treated as built-ins.
+10-03-16  A bug in whence -a which produced duplicate lines of output has
+	  been fixed.
+10-03-16  A bug in the handling of process groups in monitor mode for
+	  command substitutions has been fixed.
+10-03-15  Fixed a bug in which read -u[fd] could cause the shell to core
+	  dump when fd was greater than open_max.
+10-03-15 +Modified the shell I/O so that the shell will not fail if the
+	  ulimit for open_max is increased as part of the script.
+10-03-12  A bug in which a here-document containing command substitutions
+	  that contained here-documents did not process correctly has been
+	  fixed.
+10-03-12  A bug in which the terminal is not restored to canonical mode
+	  after read times out when in a multibyte locale with no edit mode
+	  enabled has been fixed.
+
+10-03-05  --- Release ksh93t+  ---
+10-03-05  A variable unset memory leak has been fixed and tests/leaks.sh
+	  has been added to verify the fix.
+10-03-04  Documentation, comment, and diagnostic spelling typos corrected.
+10-02-14  Fix sh_getenv() initialization to cooperate with the 3d fs.
+10-02-12  A bug in which the get discipline function was not invoked for
+	  associative array subscripts for unset array elements has been fixed.
+10-02-12  A bug which could occur if the last line of a script was an eval
+	  that executed multiple commands has been fixed.
+10-02-02  A buffer overflow in read and another in binary type base64
+	  encoding were fixed.
+10-01-20  A bug in the evaluation of arithmetic expression in which the
+	  subscript was evaluated twice for $((foo[x++]++)) has been fixed.
+10-01-19  A workaround for a double-free of a trap in both a subshell and its
+	  parent has been added.
+10-01-18  A bug in type handling of typeset -H has been fixed.
+10-01-15  The "adding empty subscript" warning now only emitted with -x set.
+10-01-01  A bug in the parser in which '$((case i in i):;esac);:))' was not
+	  parsed correctly was fixed.
+10-01-01  A bug in the parser in which '$(( 2 , 3.6 ))' dumped core for locales
+	  with radix char , and thousands separator . has been fixed.
+09-12-28  A bug in the handling of SIGCLD on systems that generated SIGCLD
+	  while blocked waiting for process to complete has been fixed.
+09-12-24  ast setlocale() reworked to differentiate env var changes from user
+	  override.
+09-12-18  A bug with the SHOPT_BGX option set which disabled traps for signals
+	  < SIGCHLD when a trap for a signal > SIGCHLD was set has been fixed.
+09-12-18  A bug where [[ -v var ]] was incorrect for some variables (including
+	  LC_* vars) has been fixed.
+09-12-15  A bug that produced a syntax error when a multibyte character
+	  straddled a buffer boundary has been fixed.
+09-12-11  A bug where the subscript of an unset variable was not evaluated has
+	  been fixed.
+09-12-09  A bug where shcomp dumped core on certain syntax errors has been fixed.
+09-12-07  A bug where a parent shell environment var reset in a subshell removed
+	  the value in subsequent children of the parent shell has been fixed.
+09-12-04  A bug in which in some cases a trap in a function executed in
+	  a subshell could trigger twice has been fixed.
+09-12-03  A bug in which SHLVL exported with some attributes could cause
+	  the shell to abort at startup has been fixed.
+09-12-02  A bug with pipefail in which the shell could hang waiting for the
+	  writer to complete before the last reader command has been fixed.
+09-11-30  A bug in which a trap could be inherited by the first element of
+	  a pipeline when the command had more than 63 arguments that did
+	  not contain any macro expansions has been fixed.
+09-11-19  When read from a terminal was called from with a while or for loop,
+	  and an edit mode was on, a backspace or erase no longer will
+	  overwrite the prompt.
+09-11-17 +Change .paths parse to handle BUILTIN_LIB=foo BUILTIN_LIB=foo-1.2.
+09-11-17  Inside a function, typeset foo.bar will bind foo to global variable
+	  foo if local variable foo does not exist, instead of creating a 
+	  local variable.
+09-11-17  "read -n1" from the terminal has been fixed to read exactly one character.
+09-11-11  Job control now works for subshell commands, (...).
+09-11-11  If set -e is on for an interactive shell errors in special builtins
+	  now cause the shell to exit.
+09-11-11  A bug in which an interrupt handler processed during the read builtin
+	  when IFS did not contain a new line has been fixed.
+09-11-09  A bug in which a variable that has been unset in a subshell and then
+	  exported from that subshell does not show up in the environment
+	  has been fixed.
+09-11-02  ``,2'' is now a valid numeric constant for locales with
+	  decimal_point=','.
+09-11-02  A bug where "return" in .profile did not restore the shell state
+	  has been fixed.
+09-10-31  A bug that corrupted saved exit status when pids wrapped around has
+	  been fixed.
+09-10-26  A bug in { LANG LC_ALL LC_category } ordering has been fixed in -last.
+09-10-16  A bug where notification to libast that the environment has changed
+          has been fixed.
+09-10-12  A bug in which a function loaded in a subshell could leave side
+	  effects in the parent shell has been fixed.
+09-10-12  A bug in converting a printf %d operand to a number when the operand
+	  contains multiple subscripts for the same variable has been fixed.
+09-10-09  A bug in the handling of the escape character \ in directory prefixes
+	  in command completion has been fixed.
+09-10-09  $PATH processing has been changed to delay dir stat() and .paths
+	  lookup until the directory is needed in the path search.
+09-09-28  Call the ast setlocale() intercept on unset too.
+09-09-24  A bug in which LANG=foo; LC_ALL=foo; unset LC_ALL; did not revert
+	  LC_CTYPE etc. to the LANG value has been fixed.
+09-09-17  A bug in which unsetting SVLVL could cause a script invoked by
+	  name without #! to core dump has been fixed.
+09-09-16  A bug in which a pipeline in a here-document could hang when the
+	  pipefail option was on has been fixed. 
+09-09-09  A bug in the processing of line joining in here documents which
+	  occurred when a buffer began with <escape><new-line> has been fixed.
+09-09-09 +A leading ; with commands in a brace group or parenthesis group
+	  no longer causes an error.  It now is used for the "showme" option.
+09-09-09  A bug in which a subshell containing a background process could
+	  block until the background process completed has been fixed.
+09-09-04  A bug in handing ${var[sub]}, where var is a nameref has been fixed.
+09-09-03  A bug which caused an index array to have the wrong number of elements
+	  when it was converted from a compound variable by adding an another
+	  element has been fixed.
+09-09-03  Specifying export for a compound variable now generates an error.
+09-09-02  $"..." localizations strings are no longer recognized inside `...`.
+09-09-01  A bug in the for loop optimizer in the handling of type static
+	  variables has been fixed.
+09-09-01  An error message is not displayed when * and @ are used as subscripts.
+09-09-01  Several bugs in the processing for types that included an associative
+	  array of another type has been fixed.
+09-09-01  A bug in the tracing of [[ a < b ]] and [[ a > b ]] has been fixed.
+09-08-26  The .sh.file variable was not being set for a script that was run
+	  by name and didn't start with #! and this has been fixed.
+09-08-25  A bug in which a function called to deeply from command substitution
+	  did not display an error message has been fixed.
+09-08-24 +When processing profiles, ksh93 now violates the POSIX standard and
+	  treats &> as a redirection operator similar to bash.
+09-08-23  A bug in the handling of the trap on SIGPIPE that could lead to a
+	  memory fault has been fixed.
+09-08-21  A bug in the handling of the comma operator in arithmetic expressions
+	  that could cause a core dump on some systems has been fixed.
+09-08-20  A bug in which a compound variable containing an array of a type
+	  that doesn't have any elements now expands correctly.
+09-08-19  A bug which disabled function tracing inside a function after
+	  a call to another function has been fixed.
+09-08-19  A bug in which initializing a compound variable instance to another
+	  compound variable by name has been fixed.
+09-08-18  A bug in which compound variable instances could be lost after
+	  an instance that invoked a type method discipline has been fixed.
+09-08-18  A bug in which a discipline function for a type applied to an
+	  array instance when invoked in a function ignored the subscript
+	  has been fixed.
+09-08-18  A scoping error with variables in arithmetic expression with
+	  type variables when reference with a name reference has been fixed.
+09-08-10  Several memory leaks were fixed primarily related to subshells.
+09-08-06  A bug in which setting the trap on CHLD to ignore could cause
+	  a script to hang has been fixed. 
+09-07-08  A bug in the processing of name reference assignments when it
+	  contained pattern expansions with quoting has been fixed.
+09-06-22 +The default width for typeset -X has been changed so that there
+	  should be no loss of precision when converting to a string.
+09-06-19  A bug in the printing of array elements for binary variables with
+	  printf %B has been fixed.
+09-06-19  A bug which caused a core dump with trap DEBUG set with an array
+	  assignment with no elements has been fixed.
+09-06-19  A bug with read with typeset -b -Z<num> has been fixed.
+09-06-19  Two bugs related to read -b for array variables has been fixed.
+09-06-19  A bug with typeset for compound variables containing arrays of
+	  compound variables has been fixed.
+09-06-18  A bug in appending a compound variable to a an indexed array of
+	  compound variables has been fixed.
+09-06-18  A bug which occurs when appending a compound variable to an indexed
+	  array element has been fixed.
+09-06-18  Setting VISUAL to a value other than one ending in vi or emacs will
+	  no longer unset the edit mode.
+09-06-17  A bug in typeset -m when moving a local compound variable to a
+	  global compound variable via a name reference has been fixed.
+09-06-17  A bug in appending to nodes of an array of compound variables when
+	  addressing them via nameref has been fixed.
+09-06-17  A bug in typeset -p var, when var is an array of compound variables
+	  in which the output only contained on array element has been fixed.
+09-06-17  The prefix expansion ${!y.@} now works when y is a name
+	  reference to an element of an array.
+09-06-16  Traps on signals that are ignored when the shell is invoked
+	  no longer display.  Previously they were ignored as required but
+	  would be listed with trap -p.
+09-06-12  A bug in vi edit mode in which hitting the up arrow key at the
+	  end of a line longer than 40 characters which caused a core dump
+	  has been fixed. 
+09-06-11  A bug in which "eval non-builtin &" would create two processes,
+	  one for the & and another for non-builtin has been fixed.
+09-06-08  When var is an identifier and is unset, ${var} no longer tries to
+	  run command substitution on the command var.
+09-06-08 +Process substitution arguments of the form <(command) can now be
+	  used following the < redirection operator to redirect from command.
+09-05-13  A bug in which redirections of the form 2>&1 1>&5 inside command
+	  substitution could cause the command substitution to hang has been
+	  fixed.
+09-05-12  To conform with POSIX, the -u option only checks for unset variables
+	  and subscript elements rather than checking for all parameters.
+09-05-12  A bug which could cause a core dump when a variable whose name
+	  begins with a . was referenced as part of a name reference inside
+	  a function has been fixed.
+09-05-01  A bug that caused a core dump when SIGWINCH was received and
+	  both vi and emacs mode were off has been fixed.
+09-04-22 +Default alias compound='typeset -C' added.
+09-04-15  A bug that caused ${...;} to hang for large files has been fixed.
+09-04-08  A change was made in the -n option which printed out an incorrect
+	  warning with <>.
+09-04-07  The emacs edit command M-_ and M_. and the vi command _ was fixed
+	  to handle the case there there is no history file.
+09-04-05  A bug in handling new-lines with read -n has been fixed.
+09-04-05  The ENV variable defaults the the file named by $HOME/.kshrc rather
+	  then to the string $HOME/.kshrc.
+09-03-31  A bug in which a nested command substitution with redirections could
+	  leave a file descriptor open has been fixed.
+09-03-24 +ksh now only uses the value of the _ variable on startup if it can
+	  verify that it was set by the invoking process rather than being
+	  inherited by some other ancestor.
+09-03-24 +When ksh is invoked without -p and ruid!=euid, and the shell is
+	  compiled without SHOPT_P_UID or ruid<SHOPT_P_UID, the shell now
+	  enables the -p option.  The previous version instead set the
+	  euid to the ruid as it does for set +p.
+09-03-24 +When SHOPT_P_UID is defined at compile time and the shell is started
+	  without -p and ruid!=euid and ruid>=SHOPT_P_UID then euid is set
+	  to ruid. A bug that did the wrong test (ruid<SHOPT_P_UID) was fixed.
+09-03-17 +The sleep(1) builtin now accept and ISO 8601 PnYnMnDTnHnMnS
+	  duration or date(1) compatible date/time operand.
+09-03-10  If a variable that was left or right justified or zero-filled was
+	  changed with a typeset statement that was left or right justified
+	  or zero-filled, then the original justification no longer affects
+	  the result.
+09-03-10  A bug in the handling of traps when the last command in a script
+	  is a subshell grouping command has been fixed.
+09-03-03  A bug in which an expansion of the form ${!prefix@} could generate
+	  an exception after the return from a function has been fixed.
+09-02-02  A bug in restricted mode in which the value of ENV could be
+	  changed from within a function has been fixed.
+09-02-02  A bug in which an erroneous message indicating that a process
+	  terminated with a coredump has been fixed.
+09-02-02  The exit status when exit was called without an argument from
+	  a signal handler was incorrect and has been fixed.
+09-02-02  A bug in which a function autoloaded in a subshell could cause
+	  a core dump when the subshell completed has been fixed.
+09-02-02  A bug in which 2>&1 inside a command substitution wasn't working
+	  correctly has been fixed.
+09-02-02  A bug in the call stack of arithmetic function with 2 args
+	  returning int has been fixed.
+09-01-30  A bug in which 'eval print \$0' inside a function was giving the
+	  wrong value for $0 has been fixed.
+09-01-28  A bug in which a command substitution could return an exit status
+	  of 127 when the pipefail option is enabled has been fixed.
+09-01-26  ksh93 now generates an error message if you attempt to create
+	  a global name reference to a local variable.
+09-01-26 +The [[ -v var ]] operator was modified to test for array elements.
+09-01-23 +The redirection operator <>; was added.  It is similar to <>
+	  except that if the command it is applied to succeeds, the file
+	  is truncated to the offset at the command completion.
+09-01-23  The default file descriptor for <> was changed to 1.
+09-01-20  A bug in which the exit status specified in an exit trap was
+	  not used when a process terminated with a signal has been fixed.
+09-01-19  A bug in which a signal whose default action is to terminate
+	  a process could be ignored when the process is running a sub-shell
+	  has been fixed.
+09-01-19  A bug in which sending SIGWINCH to a process that reads from a pipe
+	  could cause a memory fault has been fixed.
+09-01-16 +The -R unary operator was added to [[...]] and test to check whether
+	  a variable is a  name reference.
+09-01-16 +The -v unary operator was added to [[...]] and test to check whether
+	  a variable is set.
+09-01-14  The unset built-in was modified to return 0 exit status when
+	  unsetting a variable that was unset to conform with the POSIX
+	  standard.
+09-01-14  The unset built-in was modified to continue to unset variables
+	  after encountering a variable that it could not unset to
+	  conform to the POSIX standard.
+09-01-14  The parameter expansion ${x+value} no longer expands the value of
+	  the variable x when determining whether x is set or not.
+09-01-13  A bug in which background jobs and pipelines that were not waited
+	  for could, in rare instances, cause the shell to go into an infinite
+	  loop or fail has been fixed.
+09-01-06  A bug in indexed arrays of compound variables in which referencing
+	  non-existent sub-variable in an arithmetic expression could cause
+	  the sub-variable to be created has been fixed.
+09-01-05  A bug in which the \ character did not escape extended regular
+	  expression pattern characters has been fixed.
+08-12-24  A bug in which killing the last element of a pipe did not cause
+	  a write to the pipe to generate a SIGPIPE has been fixed.
+08-12-19  A bug which could cause command substitution to hang when the
+	  last element of a pipeline in a command substitution was a built-in
+	  and the output was more that PIPE_BUFF.
+08-12-18  A bug which occurs when a here documented marker embedded in a
+	  command substitution occurs on a buffer boundary has been fixed.
+08-12-17  A bug in the output of typeset -p for variables that had attributes
+	  but did not have a value has been fixed.
+08-12-16  A bug in which a name reference to a name reference variable that
+	  references an array element has been fixed.
+08-12-16  A bug in which a variable given both the -A and -C attribute along
+	  with an initial assignment didn't work correctly has been fixed.
+08-12-10  The [[ -t fd ]] test was fixed to handle fd>9.
+08-12-10  A bug where function stack misalignment could cause a bus error
+	  has been fixed.
+08-12-09  Command completion was changed to use \ to quote special characters
+	  instead of quoting the argument in single quotes.
+08-12-07  A bug in typeset -m which occurred when the target node was an
+	  associative array element has been fixed.
+08-12-07  A timing bug on some systems (for example darwin), that could
+	  cause the last process of a pipeline entered interactively to fail
+	  with an "Exec format error" has been fixed.
+08-12-04 +SHOPT_BGX enables background job extensions. Noted by "J" in
+	  the version string when enabled. (1) JOBMAX=n limits the number
+	  of concurrent & jobs to n; the n+1 & job will block until a
+	  running background job completes. (2) SIGCHLD traps are queued
+	  so that each completing background job gets its own trap; $! is
+	  set to the job pid and $? is set to the job exit status at the
+	  beginning of the trap. (3) sleep -s added to sleep until the time
+	  expires or until a signal is delivered.
+08-12-04  The sign of floating point zero is preserved across arithmetic
+	  function calls.
+08-12-04  A bug that caused print(1) to produce garbled stdout/stderr
+	  output has been fixed.
+08-12-04  A bug in which printf "%d\n" "'<euro>'" did not output the
+          numerical value of the EURO symbol, 8354, has been fixed.
+08-11-24 + /dev/fd* and /dev/std* redirections are first attempted with
+	  open() to preserve seek semantics; failing that the corresponding
+	  file descriptors are dup()'d.
+08-11-20  A bug which could cause a core dump if a function compiled with
+	  shcomp was found has been fixed.
+08-11-20  A bug in which jobs were not cleared from the jobs table for
+	  interactive shells when the pipefail option is on has been fixed.
+08-11-11  A bug in which a field that was unset in a type definition and later
+	  set for an instance could appear twice when displaying the variable
+	  has been fixed.
+08-11-11  A bug in which running a simple command & inside a function would
+	  not return the correct process id has been fixed.
+08-11-10  A bug in which the exit status of a command could be lost if the pid
+	  was that of the most recent command substitution that had completed
+	  has been fixed.
+08-11-10  The maximum depth for subshells has been increased from 256 to 65536.
+08-11-06  A bug which could cause a core dump when the _ reference variable was
+          used as an embedded type with a compound assignment has been fixed.
+
+08-10-31  --- Release ksh93t  ---
+08-10-31  Variable scoping/initialization bugs that could dump core were fixed.
+08-10-24  The lexer now accepts all RE characters for patterns prefixed
+	  with a ksh ~(...) option expression.
+08-10-24 +For ${var/pat/sub} \0 in sub expands to the text matched by pat.
+08-10-18  A bug in array scoping that could dump core has been fixed.
+08-10-10  read -n and -N fixed to count characters in multibyte locales.
+08-10-10  A bug that mishandled _.array[] type references has been fixed.
+08-10-09 +${.sh.version} now contains a concatenation of the following (after
+	  'Version') denoting compile time features:
+		A	SHOPT_AUDIT
+		B	SHOPT_BASH
+		L	SHOPT_ACCT
+		M	SHOPT_MULTIBYTE
+08-10-09  A bug that caused subshell command substitution with redirection
+	  to hang has been fixed.
+08-10-08  Output errors, other than to stderr, now result in a diagnostic.
+08-10-08  ksh93 now supports types that contain arrays of other types as
+	  members.  Earlier versions core dumped in this case.
+08-10-05  A bug which caused the shell to emit a syntax error for an arithmetic
+	  statement of the form (( var.name[sub] = value)) has been fixed.
+08-10-01  A bug that caused subshell command substitution to hang has
+	  been fixed.
+08-09-29  When the -p export option of typeset is used with other options,
+	  only those variables matching the specified options are displayed.
+08-09-29  When the shell reads the environment and finds variables that are
+	  not valid shell assignments, it now passes these on to subsequent
+	  commands rather than deleting them.
+08-09-29  A bug in the display of compound variables containing an indexed
+	  array of compound variables has been fixed.
+08-09-29  A bug in the display of compound variables containing an associative
+	  array with a subscript containing a . in the name has been fixed.
+08-09-26  A core dump in the subshell environment restore has been fixed.
+08-09-24  $(...) has been fixed to properly set the exit status in $?.
+08-09-23  $(<...) with IFS=$'\n\n' has been fixed to retain all but the last
+	  of multiple trailing newlines.
+08-09-23  The -p option to typeset when used with other attributes, restricts
+	  the output to variables with the specified attributes.
+08-09-22  A bug that sometimes lost the exit status of a job has been fixed.
+08-09-21  A bug that retained trailing command substitution newlines in
+	  cases where the command caused the shell to fork has been fixed.
+08-09-19  type, whence -v, and command -v were fixed to comply with POSIX
+	  by writing 'not found' diagnostics to the standard error.
+08-09-18  test and [...] were fixed to comply with POSIX in the case
+	  of test '(' binop ')' where binop is a valid binary test operator.
+08-09-16 +If a method discipline named create is specified when defining a
+	  type, this function will be called when an instance is created.
+08-09-15 +The variable _ is now set as a reference to the compound variable
+	  when defining a compound variable or a type.
+08-09-10  The shell now prints an error message when the type name specified
+	  for an indexed array subscript is not an enumeration type.
+08-09-10  A bug in which a subshell that spawned a background process could
+	  loose output that was produced after the foreground completed
+	  has been fixed.
+08-09-10  A timing bug on some systems that could cause coprocesses started by a
+	  subshell to not clean up and prevent other coprocesses has been fixed.
+08-09-09  The typeset -m option is now able to rename array elements from
+	  the same array.
+08-09-09  The exit status of 2 from the DEBUG trap causes the next command
+	  to be skipped.  An exit value of 255 from a DEBUG trap called from
+	  a function causes the function to return. 
+08-09-08  A bug in which a coprocess created in a subshell that did not
+	  complete when the subshell terminated could prevent a coprocess
+	  from being created in the parent shell has been fixed.
+08-09-05  An assignment of the form name1=name2 where name1 and name2
+	  are both compound variables causes name1 to get a copy of name2.
+	  name1+=name2 causes name2 sub-variables to be appended to name1.
+08-09-05  A bug in which unsetting a compound variable did not unset all
+	  the sub-variables has been fixed.
+08-09-01  A bug in the subshell cleanup code that could cause SIGSEGV has
+	  been fixed.
+06-08-26 +The SHLVL variable which is an environment variable used by bash
+          and zsh that gets incremented when the shell starts.
+08-08-25 +For an indexed array, a negative subscript now refers to offsets
+	  from the end so that -1 refers to the last element.
+08-08-24  An alignment error for shorts on 64 bit architectures has been fixed.
+08-08-22  If oldvar is a compound variable, typeset -C newvar=oldvar creates 
+	  newvar as a copy of oldvar.
+08-08-19 +The ALRM signal no longer cause the sleep builtin to terminate.
+08-08-13  When used in an arithmetic expression, the .sh.version variable  
+	  now produces a number that will be increasing for each release.
+08-08-11  A bug in which type instantiation with a compound assignment in
+	  a dot script in which the type is defined has been fixed. 
+08-08-07 +The -m option has been added to typeset to move or rename a
+	  variable.  Not documented yet.
+08-08-06  A bug in read when used in a loop when a prompt was specified
+	  when reading from a terminal has been fixed.
+08-08-01  A bug with the pipefail option in which a nested pipeline could
+	  cause an asynchronous command to block has been fixed.
+08-08-01  A for loop optimizer bug that treats .sh.lineno as an invariant
+	  has been fixed.
+08-07-30  A bug in which expanding compound variable that had a get discipline
+	  from with a here document could cause a syntax error has been fixed.
+08-07-18  A bug in which a nameref caused a local variable to be created
+	  rather than binding to an existing variable in the global scope
+	  has been fixed.
+08-07-17  A bug which occurred when a nameref was created from within a
+	  function that was  part of a pipeline has been fixed.
+08-07-14 +The compile option SHOPT_STATS was added. With this option the
+	  compound variable .sh.stats keeps usage statistics that could help
+	  with performance tuning.
+08-07-10 +The output of set now always uses a single line for each variable.
+	  For array variables, the complete set of values is now displayed.
+08-07-09 +The typeset -C option can be used with arrays to indicate that
+	  each element should default to a compound variable.
+08-07-08 +The %B format now outputs compound variables and arrays.  The
+	  alternate flag # can be used to cause output into a single line.
+08-07-03  When the window change signal, WINCH, is received, the current
+	  edit line is redrawn in place. 
+08-07-01  A bug in the handling of shared variables when inside an embedded
+	  type has been fixed.
+08-06-29  A bug in multiline edit mode which occurred when the prompt length
+	  was three characters or less has been fixed.
+08-06-23  A bug in which the SIGCLD was not be triggered when background
+	  jobs completed has been fixed.
+08-06-23  _KSH_VERSION added as a name reference to .sh.version.
+08-06-20  type now outputs 'special builtin' for special builtins.
+08-06-19  A couple of bugs in multi-dimensional arrays have been fixed.
+08-06-19  A bug in which a syntax error in a dot script could generated
+	  a syntax error in the next subsequent command has been fixed.
+08-06-17  Reduced the maximum function call depth to 2048 to avoid exceptions
+	  on some architectures.
+08-06-16  A bug in which printf "%B" could generate an exception when the
+	  specified variable was not set has been fixed.
+08-06-16 +When typeset -p is followed by variable names, it now displays
+	  the attributes names and values for the specific names.
+08-06-14  A bug that could effect the drawing of the screen from multiline
+	  emacs or gmacs mode when walking up the history file has been fixed.
+08-06-13  A bug in which a compound variable defined in a subshell could
+	  have side effects into the parent shell has been fixed.
+08-06-13  A number of bugs related to using .sh.level to set the stack from
+	  for DEBUG traps have been fixed.
+08-06-13 +The .sh.lineno variable has been added.  When .sh.level is changed
+	  inside a DEBUG trap, the .sh.lineno contains the calling line number
+	  for the specified stack frame.
+08-06-13  The .sh.level variable has been documented and now works.
+08-06-11 +The -C option has been added to read for reading compound command
+	  definitions from a file.
+08-06-11 +The . command is now permitted inside a compound command definition.
+	  The dot script can contain declaration commands and dot commands.
+08-06-09 +Add -C option to typeset so that typeset -C foo, is equivalent
+	  to foo=().
+08-06-09  Added -n warning message for typeset option orderings that are valid
+	  with ksh88 but not valid with ksh93, for example Lx5.
+08-06-09  A bug in which the return value for an assignment command containing
+	  a command substitution with that failed was zero when the assignment
+	  contained redirections has been fixed.
+08-06-09  A bug in the quoting of $ inside a ERE pattern ~(E)(pattern)
+	  has been fixed.
+08-06-06  A bug when processing `` command substitution with the character
+	  sequence \$' has been fixed.
+08-06-02 +When defining a type, the typeset -r attribute causes this field
+	  to be required to be specified for each instance of the type and
+	  does not allow a default value.
+08-06-02  Several bugs in which compound variables were modified by
+	  subshells have been fixed.
+08-05-22 +The ceil function has been added to the math functions.
+08-05-21  A bug in which a name reference defined in a function and passed
+	  as an argument to another function could cause an incorrect binding.
+08-05-21  A bug in freeing compound variables that are local to functions
+	  has been fixed.
+08-05-19 +The array expansions ${array[sub1..sub2]} and ${!array[sub1..sub2]}
+	  to expand to the value (or subscripts) for array between sub1 and
+	  sub2 inclusive.  For associative arrays, the range is based on
+	  location in the POSIX locale.  The .. must be explicit and cannot
+	  result from an expansion.
+08-05-15  The trap on SIGCLD is no longer triggered by the completion of
+	  the foreground job as with ksh88.
+08-05-14  A bug in the implementation of the editing feature added on 
+	  07-09-19 in emacs mode has been fixed.
+08-05-12  A bug in processing the test built-in with parenthesis has been
+	  fixed.
+08-05-12  The unset built-in now returns non-zero when deleting an array
+	  subscript that is not set.
+08-05-08 +Changing the value of HISTFILE or HISTSIZE will cause the old
+	  history file to be close and reopened with the new name or size.
+08-05-08  When FPATH is changed functions that were found via a path search
+	  will be searched for again.
+08-05-08  A parser bug in which reserved words and labels were recognized
+	  inside compound indexed array assignment after a new-line has
+	  been fixed.
+08-05-07  A bug in getopts when handling numerical option arguments has
+	  been fixed.
+08-05-07 +The typeset -S option was added for variables outside type
+	  definitions to provide a storage class similar to C static
+	  inside a function defined with function name.  When outside
+	  type definitions and outside a function, the -S option cause
+	  the specified variable so be unset before the assignment and
+	  before the remaining attributes are supplied.
+08-05-07  A bug that affected the cursor movement in multiline mode when
+	  a character was deleted from near the beginning of the any
+	  line other than the first.
+08-05-01  In multiline edit mode, the refresh operation will now clear
+	  the remaining portion of the last line.
+08-05-01  A bug in computing prompt widths for the edit modes for prompts
+	  with multibyte characters has been fixed.
+08-05-01  A bug in the multiline edit mode which could cause the current
+	  line to be displayed incorrectly when moving backwards from third
+	  or higher line to the previous line has been fixed.
+08-05-01  A bug in which options set in functions declared with the function
+	  name syntax were carried across into functions invoked by these
+	  functions has been fixed.
+08-04-30  A bug which could cause a coprocess to hang when the read end
+	  is a builtin command has been fixed.
+08-04-30 +The emacs and vi editors have been modified to handle window
+	  change commands as soon as they happen rather than waiting for
+	  the next command.
+08-04-28  A bug in which ${!x} did not expand to x when x was unset has been
+	  fixed.
+08-04-27  A bug in which the assignment x=(typeset -a foo=([0]=abc)) created
+	  x.foo as an associative array has been fixed.
+08-04-25  A bug in which $# did not report correctly when there were more
+	  than 32K positional parameters has been fixed.
+08-04-04  Choose the name _ as the sub-variable that holds type or instance
+	  specific data used by discipline functions.
+08-03-27  A bug in which the terminal group was not given back to the parent
+	  shell when the last part of a pipeline was handled by the parent shell
+	  and the other parts of the pipeline complete has been fixed. 
+	  The symptom was that the pipeline became uninterruptable.
+08-03-25  A bug in restricted mode introduced in ksh93s that caused scripts
+	  that did not use #! to executed in restricted mode has been fixed.
+08-03-25  A bug in which the pipefail option did not work for a pipeline
+	  within a pipeline has been fixed.
+08-03-24  A bug in which OPTIND was not set correctly in subshells has
+	  been fixed.
+08-03-24  A bug which could cause a memory exception when a compound variable
+	  containing an indexed array with only element 0 defined was expanded.
+08-03-20  A bug in which ${!var[sub].*} was treated as an error has been fixed.
+08-03-20  Associative array assignments of the form ([name]=value ...)
+	  now allow ; as well as space tab and new line to separate elements.
+08-03-18  A buffering problem in which standard error was sometimes
+	  not flushed before sleep has been fixed.
+08-03-17  A bug in which a signal sent to $$ while in a subshell would be
+	  sent to the subshell rather than the parent has been fixed.
+08-03-17 + A --default option added to set(1) to handle set +o POSIX semantics.
+	  set --state added as a long name alias for set +o.
+08-03-14  A bug in which using monitor mode from within a script could
+	  cause the terminal group to change has been fixed.
+08-03-10  The new ${...} command substitution will treat the trailing }
+	  as a reserved word even if it is not at the beginning of a command,
+	  for example, ${ date }.
+08-03-10  If the name of the ENV begins with /./ or ././ then the
+	  /etc/ksh.kshrc file will not be executed on systems that support
+	  this interactive initialization file.
+08-03-07  A bug in which ksh -i did not run the ENV file has been fixed.
+08-03-07  A bug in which ulimit did not always produce the same output as
+	  ulimit -fS has been fixed.
+08-03-04  A bug in multiline mode in emacs and vi mode which could cause the
+	  cursor to be on the wrong line when interrupt was hit has been fixed.
+08-03-03  The change made in ksh93s+ on 07-06-18 in which braces became
+	  optional for ${a[i]} inside  [[...]] was restored in the case
+	  where the argument can be a pattern.
+08-03-03  A bug in which creating a name reference to an associative array
+	  instance would fail when the subscript contained characters [ or
+	  ] has been fixed.
+08-02-29 +The redirection operator >; has been added which for non-special
+	  files, generates the output in a temporary file and writes the
+	  specified file only of the command has completed successfully.
+08-02-15  A bug in ${var/pattern/string} for patterns of the form ?(*) and +(*)
+	  has bee fixed.
+08-02-07  A bug in which test \( ! -e \) produced an error has been fixed.
+08-02-14 +The typeset -a option can now optionally be followed by the name
+	  of an enumeration type which allows subscripts to be enumerations.
+08-02-14 +The enum builtin which creates enumeration types has been added.
+08-02-12  The backoff logic when there are no more processes has been fixed.
+08-02-07  The -X option has been added to typeset.  The -X option creates
+	  a double precision number that gets displayed using the C99 %a
+	  format.  It can be used along with -l for long double.
+08-01-31  The -T option to typeset has been added for creating typed
+	  variables.  Also the -h and -S options have been added to
+	  typeset that are only applicable when defining a type.
+08-01-31  The prefix expansion operator @ has been added.  ${@name}
+	  expands to the type of name or yields the attributes.
+07-11-15  A bug in the macro expander for multibyte characters in which
+	  part of the character contains a file pattern byte has been fixed. 
+07-10-03  A bug in which : was not allowed as part of an alias name has been
+	  fixed.
+07-09-26  A bug in which appending a compound variable to a compound variable
+	  or to an index array didn't work has been fixed.
+07-09-19  In both emacs and vi edit mode, the escape sequence \E[A (usually
+	  cursor up, when the cursor is at the end of the line will fetch
+	  the most recent line starting with the current line.
+07-09-18  The value of ${!var} was correct when var was a reference to an
+	  array instance.
+07-09-18  The value of ${!var[sub]} was not expanding to var[sub] and this
+	  was fixed.  It also fixed ${name} where name is a name reference
+	  to var[sub].
+07-09-18 +It is now legal to create a name reference without an initialization.
+	  It will be bound to a variable on the first assignment.
+07-08-30 +A discipline function can be invoked as ${x.foo} and is equivalent
+	  to ${ x.foo;} and can be invoked as x.foo inside ((...)).
+07-07-09  A bug in which typeset -a did not list indexed arrays has been
+	  fixed.
+07-07-03 +The command substitution ${ command;} has been added.  It behaves
+	  like $(command) except that command is executed in the current
+	  shell environment.  The ${ must be followed by a blank or an
+	  operator.
+
+08-04-17  --- Release ksh93s+  ---
+08-04-17  A bug in which umask was not being restored correctly after a
+          subshell has been fixed.
+08-04-15  A bug in which sending a STOP signal to a job control shell started
+	  from within a shell function caused cause the invoking shell to
+	  terminate has been fixed.
+08-04-11  A bug which caused $(exec > /dev/null) to go into an infinite loop
+	  has been fixed.
+08-03-27  A bug in which typeset -LZ was being treated as -RZ has been fixed.
+08-03-06  A bug with ksh -P on systems that support the the profile shell,
+          in which it would exit after running a non-builtin has been fixed.
+08-01-31  A bug in which command substitution inside ((...)) could cause
+	  syntax errors or lead to core dumps has been fixed.
+08-01-17  A bug in which discipline functions could be deleted when invoked
+	  from a subshell has been fixed.
+08-01-17  A bug in which a command substitution consisting only of
+	  assignments was treated as a noop has been fixed.
+08-01-17  A bug in which discipline functions invoked from withing a
+	  compound assignment could fail has been fixed.
+08-01-16  Incomplete arithmetic assignments, for example ((x += )), now
+	  generate an error message.
+08-01-16  A bug in which a set discipline defined for a variable before
+	  an array assignment could cause a core dump has been fixed. 
+08-01-03  A bug in on some systems in which exit status 0 is incorrectly
+	  returned by a process that catches the SIGCONT signal is stopped 
+	  and then continued.
+07-12-13  A race condition in which a program that has been stopped and then
+	  continued could loose the exit status has been fixed.
+07-12-12  Code to check for file system out of space write errors for all
+	  writes has been added.
+07-12-11  A bug in the macro expander for multibyte characters in which
+	  part of the character contains a file pattern byte has been fixed. 
+07-12-06  A bug in the emacs edit mode when multiline was set that output
+	  a backspace before the newline to the screen has been fixed.
+07-12-04  A bug in which using <n>TAB after a variable name listing expansion
+	  in the edit modes would cause the $ to disappear has been fixed.
+07-11-28  A bug in which setting IFS to readonly could cause a subsequent
+	  command substitution to fail has been fixed.
+07-11-27  A work around for a gcc 4.* C99 "feature" that could cause a job
+	  control shell to go into an infinite loop by adding the volatile
+	  attribute to some auto vars in functions that call setjmp().
+07-11-27  A bug in which the shell could read ahead on a pipe causing the
+	  standard input to be incorrectly positioned has been fixed.
+07-11-27  A bug in which compound variable UTF-8 multibyte values were not
+	  expanded or traced properly has been fixed.
+07-11-21  A bug where an unbalanced '[' in a command argument was not treated
+	  properly has been fixed.
+07-11-15  A bug in which compatibility mode (no long option names) getopts(1)
+	  incorrectly set the value of OPTARG for flag options has been fixed.
+07-11-15  A bug in which "hash -- name" treated "--" as an invalid name operand
+	  has been fixed.
+07-11-15  typeset now handles "-t -- [-r] [--]" for s5r4 hash(1) compatibility.
+07-11-15  A bug in which the umask builtin mis-handled symbolic mode operands
+	  has been fixed.
+07-11-15  Bugs in which shell arithmetic and the printf builtin mis-handled the
+	  signs of { -NaN -Inf -0.0 } have been fixed.
+07-11-15 +The full { SIGRTMIN SIGRTMIN+1 ... SIGRTMAX-1 SIGRTMAX } range
+	  of signals, determined at runtime, are now supported.
+07-11-15  A bug in which creating an index array with only subscript 0 created
+	  only a simple variable has been fixed.
+07-11-14  A bug in which appending to an indexed array using the form
+	  name+=([sub]=value) could cause the array to become an associative
+	  array has been fixed.
+07-11-14  A bug in which typeset without arguments could coredump if a
+	  variable is declared as in indexed array and  has no elements has
+	  been fixed.
+07-11-14  A bug in which creating a local SECONDS variable with typeset in
+	  a function could corrupt memory has been fixed.
+07-11-14  A bug which could cause a core dump when a script invoked by name
+	  from a function used compound variables has been fixed.
+07-11-05  A bug in which printf %d "'AB" did not diagnose unconverted characters
+	  has been fixed.
+07-11-05  printf %g "'A" support added for all floating point formats.
+07-11-01  A bug in which typeset -f fun did not display the function definition
+          when invoked in a subshell has been fixed.
+07-10-29  The sleep builtin was fixed so that all floating point constants
+	  are valid operands.
+07-10-10  A bug in which the locale was not being restored after
+          LANG=value command has been fixed.
+07-09-20  A bug in which a nameref to a compound variable that was local
+	  to the calling function would not expand correctly when displaying
+	  is value has been fixed.
+07-09-19  A bug which cause cause a core dump if .sh.edchar returned
+	  80 characters or more from a keyboard trap has been fixed.
+07-09-14  A bug in which could cause a core dump when more than 8 file
+	  descriptors were in use has been fixed.
+07-09-10  A bug in which creating a name reference to an instance of
+	  an array when the array name is itself a reference has been fixed.
+07-09-10  The file completion code has been modified so that after an = in
+	  any word, each : will be considered a path delimiter.
+07-09-06  A bug in which subprocess cleanup could corrupt the malloc() heap
+          has been fixed.
+07-08-26  A bug in which a name reference to an associative array instance
+	  could cause the subscript to be evaluated as an arithmetic expression
+	  has been fixed.
+07-08-22  A bug in which the value of an array instance was of a compound
+	  variable was not expanded correctly has been fixed.
+07-08-14  A bug which could cause a core dump when a compound assignment was
+	  made to a compound variable element with a typeset -a attribute
+	  has been fixed.
+07-08-08  A bug in which a trap ignored in a subshell caused it to be
+	  ignored by the parent has been fixed.
+07-08-07  A bug in which the set command would generated erroneous output
+	  for a variable with the -RZ attribute if the variable name had been
+	  passed to a function has been fixed.
+07-08-02  A bug in which read x[1] could core dump has been fixed.
+07-08-02  A second bug in which after read x[sub] into an associative array
+	  of an element that hasn't been assigned could lead to a core dump
+	  has been fixed.
+07-07-31  A bug in which a pipeline that completed correctly could have
+	  an exit status of 127 when pipefail was enabled has been fixed.
+07-07-09 +The SHOPT_AUDIT compile option has been added for keyboard logging.
+07-06-25  In vi insert mode, ksh no longer emits a backspace character
+	  before the carriage return when the newline is entered. 
+07-06-25  A bug in which pipefail would cause a command to return 0
+	  when the pipeline was the last command and the failure happened
+	  on a component other than the last has been fixed.
+07-06-25  A bug in the expansion of ${var/pattern/rep} when pattern or rep
+	  contained a left parenthesis in single quotes has been fixed.
+07-06-18  The braces for a subscripted variable with ${var[sub]} are now
+	  optional when inside [[...]], ((...)) or as a subscript.
+07-05-28  A bug in brace expansion in which single and double quotes did
+          not treat the comma as a literal character has been fixed.
+07-05-24  The -p option of whence now disables -v.
+07-05-23  Several bug fixes in compound variables and arrays of arrays
+	  have been made.
+07-05-15  A bug in which the %B format of printf was affected  by the
+	  locale has been fixed.
+07-05-14  A bug in which \ was not removed in the replacement pattern with
+	  ${var/pattern/rep} when it was not followed by \ or a digit has
+	  been fixed.
+07-05-10  A bug in which ksh -R file core dumped if no script was specified
+	  has been fixed.  it not displays an error message.
+07-05-07  Added additional Solaris signals to signal table.
+07-04-30  A bug in which a pipeline with command substitution inside a
+	  function could cause a pipeline that invokes this function to
+	  hang when the pipefail option is on has been fixed.
+07-04-30 +Added -q to whence.
+07-04-18  A small memory leak with each redirection of a non-builtin has
+	  been fixed.
+07-03-08  A bug in which set +o output command line options has been fixed.
+07-03-08  A bug in which an error in read (for example, an invalid variable
+	  name), could leave the terminal in raw mode has been fixed.
+07-03-06  A bug in which read could core dump when specified with an array
+	  variable with a subscript that is an arithmetic expression has
+	  been fixed.
+07-03-06  Several serious bugs with the restricted shell were reported and
+	  fixed.
+07-03-02  If a job is stopped, and subsequently restarted with a CONT
+	  signal and exits normally, ksh93 was incorrectly exiting with
+	  the exit status of the stop signal number.
+07-02-26 +M-^L added to emacs mode to clear the screen.
+07-02-26  A bug in which setting a variable readonly in a subshell would
+	  cause an unset error when the subshell completed has been fixed. 
+07-02-19 +The format with printf uses the new = flag to center the output.
+07-02-19  A bug in which ksh93 did not allow multibyte characters in
+	  identifier names has been fixed.
+07-02-19  A bug introduced in ksh93 that causes global compound variable
+	  definitions inside functions to exit with "no parent" has been fixed.
+07-02-19  A bug in which using compound commands in process redirection
+	  arguments would give syntax errors <(...) and >(...) has been fixed.
+07-01-29  A bug which caused the shell to core dump which can occur when a
+	  built-in exits without closing files that it opens has been fixed.
+07-01-26  A bug in which ~(E) in patterns containing \ that are not inside ()
+	  has been fixed.
+
+06-12-29  --- Release ksh93s  ---
+06-12-29  A bug in which the value of IFS could be changed after a command
+	  substitution has been fixed. 
+06-12-22 +/dev/(tcp|udp|sctp)/HOST/SEVRICE now handles IPv6 addresses on
+	  systems that provide getaddrinfo(3).
+06-12-19 +A -v option was added to read.  With this option the value of
+	  the first variable name argument will become the default value
+	  when read from a terminal device. 
+06-11-20  A bug in which "${foo[@]:1}}" expands a null argument (instead of
+	  no argument), when foo[0] is not empty has been fixed. 
+06-11-16  The discipline functions have been modified to allow each subscript
+	  to act independently.  Currently the discipline function will not
+	  be called when called from a discipline function of the same variable.
+06-11-14  A bug which could cause a core dump if a file descriptor for
+	  an internal file was closed from with a subshell has been fixed.
+06-10-30 +The redirections <# pattern, and <## pattern have been added.
+	  Both seek forward to the beginning of the next line that contains
+	  the pattern.  The <## form copies the skipped portion to standard
+	  output.
+06-10-26 +On systems that support stream control transport, the virtual file
+	  name /dev/sctp/host/port can now be used to establish connections.
+06-10-26 +The printf modifier # when used with d produces units in thousands
+	  with a single letter suffix added.  The modifier # when used with
+	  the i specification provides units of 1024 with a two letter suffix.
+06-10-24  The value of $! is now set to the process id of a job put
+	  into the background with the bg command as required by POSIX.
+06-10-23  A bug in which the value of $! was affected by a background
+	  job started from a subshell has been fixed.
+06-10-23  A bug in ${var:offset:len} in multibyte locales has been fixed.
+06-10-15 +The remaining math functions from C99 were added for any system
+	  that supports them.
+06-10-13  The klockwork.com software detected a few coding errors that
+	  have been fixed.
+06-10-12  A bug when skipping over `...` with ${x:=`...`} when x is set
+	  has been fixed.
+06-10-11  A bug in process floating constants produced by the %a format
+	  of printf has been fixed.
+06-10-06  A bug in which IFS was not being restored correctly in some
+	  cases after a subshell has been fixed.
+06-10-06  A bug in which pipefail was not detecting some failures in
+	  pipelines with 3 or more states has been fixed.
+06-10-03  A bug in the processing of >(...) with builtins which could
+	  cause the builtin to hang has been fixed.
+06-10-03  A bug in the for loop optimizer which causes >(...) process
+	  substitution to be ignored has been fixed.
+06-09-17 +The -a option was added to typeset for indexed arrays.  This
+	  is only needed when using the ([subscript]=value ...) form.
+06-09-06 +The showme option was added.  Each simple command not beginning
+	  with a redirection and not occurring with in the while, until, if,
+	  select condition can be preceded by a semi-colon which will
+	  be ignored when showme is off.  When showme is on, any command
+	  preceded by a colon will be traced but not executed.
+06-08-16 +As a new feature, a leading ~(N) on a pattern has no effect 
+	  except when used for file expansion.  In this case if not
+	  matches are found, the pattern is replaced by nothing rather
+	  than itself.
+06-08-11  A bug in the expansion of ${.sh.match[i]:${#.shmatch[i]}} has
+	  been fixed.
+06-08-10 +The read builtin options -n and -N have been modified to treat
+          the size as characters rather than bytes unless storing into a
+	  binary (typeset -B) variable.
+06-07-27 +When the here document operator << is followed directly by a #
+	  rather than a -, the first line of the here-document determines
+	  how much whitespace is removed for each line.
+06-07-26  A bug in the C-shell history (enabled with set -H) in which the
+	  history event !$ was not processed has been fixed.
+06-07-21  A bug on some systems in which assigning PATH on a command line
+	  would not take effect has been fixed.
+06-07-20  Add ksh93 and rksh93 as allowable names for ksh binaries.
+06-07-20  Removed the SHOPT_OO compilation option which was only partially
+	  implemented.
+06-07-20  The ability to use egrep, grep, and fgrep expressions within
+	  shell patterns has been documented.
+06-07-17  A bug with arithmetic command expressions for locales in which
+	  the comma is a thousands separator has been fixed. 
+06-07-13 +The default HISTSIZE was increased from 128 to 512.
+06-07-13  A multibyte problem with locales that use shift codes has been fixed.
+06-06-23  A number of bug fixes for command, file, and variable completion
+	  have been mode.
+06-06-20 +Floating point division by zero now yields the constant Inf or -Inf
+	  and floating functions with invalid arguments yield NaN. 
+06-06-20 +The floating point constants Inf and NaN can be used in arithmetic
+	  expressions.
+06-06-20 +The functions isinf(), isnan(), tanhl() have been added for
+	  arithmetic expressions.
+06-06-13  Internal change to use ordering for variables instead of hashing
+	  to speed up prefix matching.
+06-06-13  A window between fork/exec in which a signal could get lost
+	  and cause a program to hang has been eliminated
+06-06-13  A bug in edit completion with quoted strings has been fixed.
+06-06-07  The restricted options can now be enabled by set as well as on
+	  the command line.  Once set, it can not be disabled.
+06-06-04  Modified built-in binding so that for systems for which /bin
+          and /usr/bin are the same, a builtin bound to /bin will get
+	  selected when either /bin or /usr/bin is scanned.
+06-06-04 +Added literal-next character processing for emacs/gmacs mode. 
+	  This change is not compatible with earlier versions of ksh93
+          and ksh88 when the stty lnext is control-v.  The sequence
+	  escape-control-v will display the shell version.
+06-05-31 +Modified emacs and vi mode so that entering a TAB after a partial
+	  TAB completion, generates a listing of possible completions.
+	  After the second TAB, a number followed by a TAB will perform
+	  the completion with the corresponding item.
+06-05-19 +Modified arithmetic so that conversions to strings default to
+	  the maximum number of precision digits.
+06-05-16  Bug fixes for multibyte locales. 
+06-05-10  The =~ operator was added to [[...]] and  [[ string ~= ERE ]]
+	  is equivalent to [[ string == ~(E)ERE ]].
+06-04-25  A bug in the vi edit mode which could cause the shell to core dump
+	  when switching from emacs mode.
+06-04-17  A bug in which using LANG or LC_ in assignment lists with builtins
+	  did not restore the localed correctly has been fixed.
+06-04-04  A bug in which discipline functions could not be added to variables
+	  whose names started with .sh has been fixed.
+06-03-28 +The -s option to typeset was added to modify -i to indicate short
+	  integers.
+06-03-28  A bug in which variables assignment lists before functions
+	  defined with function name were not passed on the functions
+	  invoked by this function has been fixed. 
+06-03-28  A bug in which name references defined within a function defined
+	  with function  name could not be used with compound variables has
+	  been fixed.
+06-03-27  A bug in which read <&p (print >&p) would cause the coprocess input
+	  (output) pipe to close before reading from (after writing to)
+          it has been fixed.
+06-02-28  A bug in which stopping a job created with the hist builtin command
+	  would create a job that could not be restarted has been fixed.  
+
+06-01-24  --- Release ksh93r  ---
+06-01-24  A bug in which running commands with standard output closed would
+	  not work as expected has been fixed.
+06-01-23  A bug in which print -u<n> could fail when file descriptor <n> was
+	  open for writing has been fixed.
+06-01-19  The ?: arithmetic operator fixed to work when the operation after
+	  the colon was an assignment.
+05-12-24  A bug which could lead to a core dump when elements of a compound
+	  variable were array elements, i.e. foo=(bar=(1 2)), has been fixed.
+05-12-13  An arithmetic bug in which x+=y+=z was not working has been fixed. 
+05-12-13  An arithmetic bug in which x||y was returning x when x was non-zero
+	  rather than 1 has been fixed.
+05-12-07 +The aliases for integer and float have been changed to use attributes
+	  -li and -lE to handle long long and long double types.
+05-12-07 +The histexpand (-H) option has been added which allows C-shell
+	  style history expansions using the history character !.
+05-12-07 +The multiline option was added which changes that way the edit
+	  modes handle lines longer than the window width.  Instead of
+	  horizontal scrolling, multiple lines on the screen are used.
+05-12-05  The whence builtin now returns an absolute pathname when the
+          command is found in the current directory.
+05-11-29  A bug which caused ksh -c '[[ ! ((' to core dump rather than
+	  report a syntax error has been fixed.
+05-11-29  A bug when reading fixed length records into typeset -b variables
+	  which caused a zero byte to terminate the value has been fixed.
+05-11-22 +The ability to seek to an offset within a file has been added
+	  with the new I/O redirection operators, <#  and >#.  Currently,
+	  these redirection operators must be followed by ((expr))
+	  but in a future release, it should be able to used to seek forward
+	  to the specified shell pattern.  In addition $(n<#) expands to the
+	  current byte offset for file descriptor n.
+05-11-22 +The .sh.match array variable is now set after each [[ ... ]]
+	  pattern match.  Previously it was only set for substring matches.
+05-10-17  A bug in which the library path variable could be prefixed
+          with a directory when a .path file was not encountered in
+	  the directory of the executable has been fixed.
+05-09-15  A for/while loop optimizer bug in which $OPTIND was not
+	  correctly expanded has been fixed.
+05-09-05  A bug in which a history command that invoked a history
+	  command could go into an infinite loop has been fixed.
+05-08-31 +In the case that IFS contains to adjacent new-lines so that
+	  new-line is not treated as a space delimiter, only a single
+	  new-line is deleted at the end of a command substitution.
+05-08-19 +When a tilde substitution expands to the / directory and is
+	  followed by a /, it is replaced by the empty string.
+05-08-16  A bug in which n<&m did not synchronize m has been fixed.
+05-08-16  A bug in which process substitution  ( <() and >() ) was not
+	  working within for and while loops has been fixed.
+05-07-24  A bug in which the pattern ~(E)(foo|bar) was treated as a syntax
+	  error has been fixed.
+05-07-24  A bug in completion with <n>=, where n was the one of the
+	  previous selection choices has been fixed.
+05-07-21  A bug with multibyte input when no edit mode was specified which
+	  caused the input line to shift left/right has been fixed.
+05-06-24  A race condition which could cause the exit status to get lost
+	  on some fast systems has been fixed.
+05-06-21  A bug in which nested patterns of the form {m,n}(pat) would cause
+	  syntax errors has been fixed.
+05-06-21  A bug in the macro expander has been fixed which could cause a
+          syntax error for an expansion of the form ${x-$(...)} when
+	  x is set and the command substitution contained certain strings.
+05-06-08 +On systems for which echo does not do System V style \ expansions,
+	  the -e option was added to enable these expansion.
+05-06-08  A bug in which ${var op pattern} to not work when inside an
+	  arithmetic expression has been fixed.
+05-05-23 +An extension to shell patterns that allows matching of nested
+	  groups while skipping over quoted strings has been added.
+05-05-18  A bug in which the line number for errors was not correct for
+          functions loaded from FPATH has been fixed.
+05-04-18  A bug in which the exit status $? is not set when a trap triggered
+	  by the [[...]] command is executed has been fixed.
+05-04-08 +Redirection operators can be directly preceded with {varname}
+	  with no intervening space, where varname is a variable name which
+	  allows the shell to select a file descriptor > 10 and store it
+	  into varname.
+05-04-08 +SHOPT_CMDLIB_BLTIN=1 now includes <cmdlist.h> generated table.
+05-04-07 +[[ -o ?option ]] is true if "option" is a supported option.
+05-04-05  A bug in handling file completion with spaces in the names
+          has been fixed.
+05-03-25 +The SIGWINCH signal is caught by default to keeps the LINES and
+	  COLUMNS variables in sync with the actual window size.
+05-03-25 +Building ksh with SHOPT_REMOTE=1 causes ksh to set --rc if stdin is
+	  a socket (presumably part of a remote shell invocation.)
+05-03-25 +Building ksh with SHOPT_SYSRC=1 causes interactive ksh to source
+	  /etc/ksh.kshrc (if it exists) before sourcing the $ENV file.
+05-03-25 +{first..last[..incr][%fmt]} sequences added to brace expansions
+	  when braceexpand is enabled.
+05-03-03  A bug where a SIGCHLD interrupt could cause a fifo open to fail has
+	  been fixed.
+05-02-25  A bug in which a builtin command run in the background could
+	  keep a file descriptor open which could cause a foreground
+	  process to hang has been fixed.
+05-02-24  A bug where builtin library commands (e.g., date and TZ) failed to
+	  detect environment variable changes has been fixed.
+05-02-22 +The read builtin and word splitting are now consistent with respect
+	  to IFS -- both treat IFS as field delimiters.
+05-02-22 +The read builtin no longer strips off trailing delimiters that
+	  are not space characters when there are fewer variables than fields.
+05-02-17  A builtin bug on systems where dlsym(libcmd) returns link-time
+	  bindings has been fixed.
+05-02-12  A bug in which the lib_init() function for .paths BUILTIN_LIB
+	  libraries was not called has been fixed.
+05-02-06  A bug on some systems in which moving the write end of a co-process
+	  to a numbered file descriptor could cause it to close has been fixed. 
+05-02-06  A bug in the vi-edit mode in which the character under the cursor
+	  was not deleted in some cases with the d% directive has been fixed.
+05-02-06  A bug where external builtin stdout/stderr redirection corrupted
+          stdout has been fixed.
+05-02-04  A bug where times formatting assumed CLK_TCK==60 has been fixed.
+
+05-01-11  --- Release ksh93q  ---
+05-01-11  A bug in the integral divide by zero check has been fixed.
+05-01-11 +The -l option has been added to read /etc/profile and
+	  $HOME/.profile, if they exist, before the first command.
+05-01-11  An argument parsing bug that caused `kill -s x -- n' to fail has
+	  been fixed.
+05-01-11 +The .paths file, introduced in ksh93m, which can appear in
+	  any directory in PATH, now allows a line of the form 'BUILTIN_LIB=.'
+	  When a command is searched for this directory, and the full path
+	  matches the path of the built-in version of the command (listed
+	  by the 'builtin' command) then the built-in version of the command
+	  is used.  When ksh is built with SHOPT_CMDLIB_DIR=1 then all libcmd
+	  functions become builtins with the '/opt/ast/bin/' directory prefix.
+05-01-10  A bug in which a nameref to a compound name caused a core dump has
+	  been fixed.
+05-01-09  A bug in which some SIGCHLD interrupts (from child processes exiting)
+	  caused a fatal print/echo error diagnostic has been fixed.
+04-12-24  A bug in which some SIGCHLD interrupts (from child processes exiting)
+          corrupted the internal process/job list, sometimes causing the shell
+	  to hang, has been fixed.
+04-12-01  A bug in which typeset -Fn truncated less than n digits for large
+	  numbers has been fixed.
+04-11-25  A bug in which standard error could be closed after a redirection
+	  to /dev/stderr has been fixed.
+04-11-17  A bug in which an expansion of the form ${array[@]:3} could expand
+          to ${array[0]} when ${array[3]} was not set has been fixed.
+04-10-22 +The -E or -orc command line option reads ${ENV-$HOME/.kshrc} file.
+04-10-22 +`-o foo' equivalent to `+o nofoo', `-o nobar' equivalent to `+o bar'.
+          `--foo' equivalent to `-o foo', `--nofoo' equivalent to `+o foo'
+04-10-05 +The .paths file, introduced in ksh93m, which can appear in
+	  any directory in PATH, now allows a line of the form
+	  'BUILTIN_LIB=libname'.  When a command is searched for this directory,
+	  the shared library named by libname will first be searched for a
+	  built-in version of the command.
+04-09-03  <<< here documents now handle quotes in the word token correctly. 
+04-08-08 +The maximum size for read -n and and read -N was increased from
+	  4095 to 32M.
+04-08-04 +printf %q was modified so that if an no operand was supplied, no
+	  no output would be generated rather than a quoted empty string.
+04-08-01 +The -n and -N options of the read builtin has been modified
+	  when reading variables with the binary attribute so that the
+	  data is stored directly rather than through assignment.
+04-08-01 +The shcomp command has been modified to process alias commands
+	  under some conditions.
+04-07-31 +The .sh.match variable added in ksh93l, now works like other
+	  indexed arrays.
+04-07-08  A loop optimizer bug which occurs when typeset is used in
+	  a for or while loop inside a function has been fixed.
+04-06-24 +The number of subexpressions in a pattern was increased to 64
+	  from the current number of 20.
+04-06-17 +The -t option to read was modified to allow seconds to be
+	  specified as any arithmetic expression rather than just
+	  an integral number of seconds, for example even -t 'sin(.5)'
+	  is now valid.
+04-06-16  Two small memory leak problems were fixed.
+04-06-15  A bug in ${var/pattern/"string"} which occurred when string
+	  contained pattern matching characters has been fixed.
+04-05-08  printf $'%d\n' produced an erroneous error message and has
+	  been fixed.
+04-05-24  A bug in which an associative array without any elements could
+	  cause a core dump when a script with an associative array with
+	  the same name was declared in a script invoked by name has
+	  been fixed.
+04-05-11  A bug in which an exec statement could close the script that
+	  is being processed in a script that is run by name causing
+	  a failure has been fixed.
+04-04-28 +If the first character of assignment to an integer variable was 0,
+          the variable had been treated as unsigned.  This behavior was
+          undocumented and has been removed.
+04-04-05  A bug in which the positioning of standard input could be incorrect
+	  after reading from standard input from a subshell has been fixed.
+04-03-30  A bug in the for loop optimizer which in rare cases could cause
+	  memory corruption has been fixed.
+04-03-29 +The preset alias source='command .' has been added.
+04-03-29  A bug introduced in ksh93p on some systems in which invoked by
+	  name with #! on the first line would not get the signals handling
+	  initialized correctly has been fixed. 
+04-03-29  A bug introduced in ksh93p in which a HUP signal received by
+	  a shell that is a session group leader was not passed down to
+	  its children has been fixed.
+
+04-02-28  --- Release ksh93p  ---
+04-02-28 +The ability to apply an append discipline to any variable has
+	  been added.
+04-02-14  A bug in which the exportall option (set -a) would cause incorrect
+	  results for arrays has been fixed.
+04-02-02  A bug in which an exported array would pass more than
+	  the first element to a script invoked by name has been fixed.
+04-02-02  A bug on some systems in which name=value pairs preceding a script
+	  invoked by name was not getting passed to the script has been fixed.
+04-01-20  A bug in which an unset discipline function could cause a core
+	  dump on some systems has been fixed.
+04-01-12  A bug in which a continue or break called outside a loop from
+	  inside a function defined with name() syntax could affect 
+	  the invoking function has been fixed.
+04-01-08  If a command name begins with ~, only filename completion will be
+	  attempted rather than pathname completion using the builtin editors. 
+04-01-08  A bug in the vi edit mode in which the wrong repeat count on
+	  multiple word replacements with the . directive has been fixed.
+04-01-06  Backspace characters are now handled correctly in prompt strings.
+04-01-06 +The getopts builtin has been modified to accept numerical
+	  arguments of size long long on systems that support this.
+04-01-06  A bug in which unsetting all elements of an associative array
+	  would cause it to be treated as an indexed array has been fixed.
+03-12-15  A bug in which a quoted string ending with an unescaped $ would
+	  delete the ending $ in certain cases has been fixed.
+03-12-05  A bug in which the shell could hang when set -x tracing a command
+	  when an invalid multibyte character is encountered has been fixed. 
+03-12-05  On some systems, if the KEYBD trap is set, then commands that use
+	  the meta key were not processed until return was hit.  This
+	  has been fixed.
+03-12-05  A problem which occurred when the login shell was not a group
+	  leader that could cause it to fail has been fixed.
+03-12-05  A problem in which a shell could core dump after receiving a signal
+	  that should cause it to terminate while it was in the process
+	  of acquiring more space has been fixed.
+03-12-05 +If ENV is not specified, the shell will default to $HOME/.kshrc
+	  for interactive shells.
+03-11-21  A bug introduced in ksh93o in which the DEBUG trap could get
+	  disabled after it triggered has been fixed. 
+03-11-04  A bug in which using arithmetic prefix operators ++ or -- on a
+	  non-lvalue could cause a core dump has been fixed.
+03-11-04  A bug in which leading zeros were stripped from variable
+	  expansions within arithmetic computation to avoid being treated
+	  as octal constants when they should not have, has been fixed.
+03-10-08  A bug introduced in ksh93o in which a large here document inside
+	  a function definition could get corrupted has been fixed.
+03-09-22  A bug in which the .get discipline function was not being
+	  called when a string variable was implicitly referenced from
+	  within a numerical expression has been fixed.
+03-09-22  A bug in which a script without a leading #! could get executed
+	  by /bin/sh rather than the current shell on some systems has
+	  been fixed.
+03-09-12 +To improve conformance with ksh88, leading zeros will be ignored
+	  when getting the numerical value of a string variable so that
+	  they will not be treated as octal constants.
+03-09-03 +The builtin kill command now processes obsolete invocations
+	  such as kill -1 -pid.
+03-09-02  The restriction on modifying FPATH in a restricted shell (sh -r)
+	  has been documented.
+03-09-02 +The restricted shell (sh -r) has been modified to disallow
+	  executing command -p.
+03-08-07  A bug in which the KEYBD trap was not being invoked when
+	  characters with the 8th bit set has been fixed.
+03-08-02  A parser bug introduced in ksh93o which caused the character
+	  after () in a Posix function definition to be skipped 
+	  when reading from standard input has been fixed.
+03-08-01  A bug in which "${foo#pattern}(x)" treated (x) as if it were
+	  part of the pattern has been fixed.
+03-08-01 +The command -x option has been modified so that any trailing
+	  arguments that do expand to a single word will be included
+	  on each invocation, so that commands like command -x mv * dir
+	  work as expected.
+
+03-07-20  --- Release ksh93o+  ---
+03-07-20  A bug in which could cause memory corruption when a posix
+	  function invoked another one has been fixed.
+03-07-15  A bug in which a file descriptor>2 could be closed before
+	  executing a script has been fixed.
+03-07-15  A parsing error for <() and >() process substitutions inside
+	  command substitution has been fixed.
+03-07-15  A parsing error for patterns of the form {...}(...) when
+	  used inside ${...} has been fixed.
+03-07-15  An error in which expanding an indexed array inside a compound
+	  variable could cause a core dump has been fixed.
+03-07-15  A bug in which on rare occasions a job completion interrupt
+	  could cause to core dump has been fixed.
+03-06-26  A bug in which process substitution embedded within command
+	  substitution would generate a syntax error has been fixed.
+03-96-23  A bug in which ${@:offset:len} could core dump when there
+	  were no arguments has been fixed.
+03-96-23  A bug in which ${X[@]:offset:len} could core dump when X
+	  was unset has been fixed.
+03-06-22 +The -x option was added to the command builtin.  If this
+	  option is on, and the number of arguments would exceed ARG_MAX,
+	  the command will be invoked multiple times with a subset of
+	  the arguments.  For example, with alias grep='command -x grep,
+	  any number of arguments can be specified.
+03-06-14  A bug in which could cause a core dump on some systems with
+	  vi and emacs editors with the MULTIBYTE option has been fixed.
+03-06-06  A bug in which the shell could core dump when a script was
+	  run from its directory, and the script name a symlink to a file
+	  beginning with .., has been fixed.
+03-06-05  A bug in which the shell could core dump when a child process
+	  that it is unaware of terminates while it is calling malloc()
+	  has been fixed.
+03-06-02 +An option named globstar (set -G) has been added.  When enabled,
+	  during pathname expansion, any component that consists only of ** is
+	  matches all files and any number of directory levels.
+03-05-30  A bug in which the PATH search could give incorrect results when
+	  run from directory foo and PATH contained .:foo:xxx has been fixed.
+03-05-29 +Some changes were made to the code that displays the prompt in edit 
+	  mode to better handle escape sequences in the prompt.
+03-05-27  I added = to the list of characters that mark the beginning of
+	  a word for edit completion so that filenames in assignments
+	  can be completed.
+03-05-20  A bug in which read -N could hang on some systems when reading
+	  from a terminal or a pipe has been fixed.
+03-05-19  A bug in which the output of uname from a command substitution
+	  would go to the standard output of the invoking command when
+	  uname was invoked with a non-standard option has been fixed.
+03-05-19  A job control bug which would cause the shell to exit because 
+	  it hadn't take back the terminal has been fixed.  The bug
+	  could occur when running a function that contained a pipeline
+	  whose last element was a function.
+03-05-19  A job control timing bug introduced in ksh93o on some systems
+	  which could cause a pipeline to hang if the first component
+	  completed quickly has been fixed.
+03-05-13 +The read builtin has been modified so that the builtin editors
+	  will not overwrite output from a previous incomplete line. 
+03-05-13  A bug in which the name of an identifier could have the string
+	  .sh. prefixed to it after expanding a variable whose name begins
+	  with .sh. has been fixed.
+03-05-13  A bug in the expansion of $var for compound variables in which
+	  some elements would not be output when the name was a prefix
+	  of another name in the compound variable has been fixed.
+03-05-08  The last item in the ksh93o release on 03-01-02 has been
+	  altered slightly to preserve the leading 0's when the
+	  preceding character is a digit.  Thus, with typeset -LZ3 x=10,
+	  $(( 1$x)) will be 1010 whereas $(( $x) will be 10.
+03-04-25  A bug in which if x is a name reference, then nameref y=x.foo
+	  did not follow x has been fixed.
+
+03-03-18  --- Release ksh93o  ---
+03-03-18 +A -N unary operator was added to test and [[...]] which returns
+	  true if the file exists and the file has been modified since it
+	  was last read.
+03-03-18 +The TIMEFORMAT variable was added to control the format for
+	  the time compound command.  The formatting description is
+	  described in the man page.
+03-03-06 +A -N n option was added to read which causes exactly n bytes
+	  to be read unlike -n n which causes at most n bytes to be read.
+03-03-03 +Three new shell variables were added.  The variable .sh.file
+	  stores the full pathname of the file that the current command
+	  was found in.  The variable .sh.fun names the current function
+	  that is running.  The variable .sh.subshell contains the depth
+	  of the current subshell or command substitution.
+03-03-03 +When the DEBUG trap is executed, the current command line after
+	  expansions is placed in the variable .sh.command.  The trap
+	  is also now triggered before each iteration of a for, select,
+	  and case command and before each assignment and redirection.
+03-02-28 +Function definitions are no longer stored in the history file so
+	  that set -o nolog no longer has any meaning.
+03-02-28 +All function definitions can be displayed with typeset -f not
+	  just those stored in the history file.  In addition, typeset +f
+	  displays the function name followed by a comment containing the
+	  line number and the path name for the file that defined this function.
+03-02-28  A bug in which the value of $LINENO was not correct when executing
+	  command contained inside mult-line command substitutions has been
+	  fixed.
+03-02-19 +Since some existing ksh88 scripts use the undocumented and
+	  unintended ability to insert a : in front of the % and # parameter
+	  expansion operators, ksh93 was modified to accept :% as equivalent
+	  to % and :# as equivalent to # with ${name op word}.
+03-02-14  A bug which could cause a core dump when reading from standard
+	  error when standard error was a pty has been fixed.
+03-02-14 +The shell arithmetic was modified to use long double on systems
+	  that provide this data type.
+03-02-09  A bug in which a function located in the first directory in FPATH
+	  would not be found when the last component of PATH was . and the
+	  current directory was one of the directories in PATH has been fixed.
+03-02-07 +The trap and kill builtin commands now accept a leading SIG prefix
+	  on the signal names as documented.
+03-02-05  A bug in the expansion of ${var/$pattern}, when pattern contained
+	  \[ has been fixed.
+03-02-05  A bug in which .sh.match[n], n>0, was not being set for substring
+	  matches with % and %% has been fixed.
+03-01-15  A bug in which getopts did not work for numerical arguments specified
+	  as n#var in the getopts string has been fixed.
+03-01-09  A bug in which using ${.sh.match} multiple times could lead to
+	  a memory exception has been fixed.
+03-01-06  A bug in the expansion of ${var/pattern/$string} in the case that
+	  $string contains \digit has been fixed. 
+03-01-02 +A -P option was added for systems such as Solaris 8 that support
+	  profile shell.
+03-01-02  For backward compatibility with ksh88, arithmetic expansion
+	  with ((...)) and let has been modified so that if x is a zero-filled
+	  variable, $x will not be treated as an octal constant.
+
+02-12-05  --- Release ksh93n+  ---
+02-11-30  A bug that can show up in evaluating arithmetic statements that
+	  are in an autoloaded function when the function is autoload from
+	  another function has been fixed.
+02-11-30  An optimization bug in which an expansion of the form ${!name.@},
+	  which occurred inside a for or a while loop, when name is a name
+	  reference, has been fixed.
+02-11-18  A bug in which modifying array variables in a subshell could leave
+	  side effects in the parent shell environment has been fixed.
+02-11-18  A memory leak when unsetting an associative array has been fixed.
+02-11-14 +The code to display compound objects was rewritten to make
+	  it easier for runtime extensions to reuse this code.
+02-11-14 +A change was made to allow runtime builtins to be notified when
+	  a signal is received so that cleanup can be performed.
+02-10-31 +User applications can now trap the ALRM signal.  Previously,
+	  the ALRM signal was used internally and could not be used
+	  by applications. 
+02-10-31  A bug in which signals received while reading from a coprocess
+	  for which traps were set was not handled correctly has been fixed.
+02-10-31  A bug in which a file opened with exec inside a subshell could
+	  be closed before the subshell completed has been fixed.
+02-10-21  A bug in which setting PATH or FPATH inside a function might not
+	  take effect has been fixed.
+02-10-21  A bug which could cause a core dump when a local SECONDS variable
+	  is defined in a function has been fixed.
+02-10-15  A bug in which the associate array name operator ${!array[@]}
+	  could return the same name multiple times has been fixed.
+02-10-15  A bug in which the zero'th element of an associative array was
+	  not getting set when an assignment was made without a subscript
+	  specified has been fixed.
+
+02-09-30  --- Release ksh93n  ---
+02-09-30 +The maximum indexed array size was increased to 16Megs.
+02-09-30  A bug which could cause a core dump when changing attributes
+	  of associative array has been fixed.
+02-09-30  A bug in which exporting an array variable would not export the
+	  0-th element has been fixed.
+02-09-30  A bug in which an array assignment of the form a=($a ...) would unset
+	  'a' before the right hand side was evaluated has been fixed.
+02-09-27  A bug in which the error message for ${var?message} when var was
+	  null or unset did not contain the variable name var has been fixed.
+02-09-27  A bug in which closing file descriptors 0 through 2 could
+	  cause a subsequent here document to fail has been fixed. 
+02-09-14  A bug in whence which occurs when the specified name contained
+	  a / has been fixed.
+02-09-14  A bug in the parser for strings of the form name$((expr))=value
+	  has been fixed.
+02-09-14  A for loop optimization bug in which the number of elements in
+	  an array was treated as an invariant has been fixed.
+02-09-09  A bug in which redirection or closing of a file descriptor between
+	  3 and 9 could cause a subsequent here document to fail has been
+	  fixed. 
+02-09-09  A bug in which a background job was not removed from the job list
+	  when a subshell completed has been fixed, for example (prog&). 
+02-09-03  A bug in which an assignment of the form name=(integer x=3)
+	  could be interpreted as an array assignment rather than a
+	  compound variable assignment has been fixed.
+02-08-19  A command completion bug which occurred on file systems that
+	  are case insensitive has been fixed.
+02-08-19  A bug which could lead to an exception on some systems (for
+	  example FREEBSD) which occurred when setting PATH has been fixed.
+02-08-11  A bug in arithmetic rounding in which a value input as a decimal
+	  string would output as a rounded version of the string has
+	  been fixed.
+02-08-11  A bug in which the last character could be deleted from shell
+	  traces and from whence when called from a multibyte locale
+	  has been fixed.
+02-08-01  A bug which could cause a core dump to occur when a shell script
+	  is executed while a coprocess is running that has closed the
+	  output pipe has been fixed.
+02-08-01  A bug in which command completion in multibyte mode could
+	  corrupt memory for long command lines has been fixed.
+
+02-06-17  --- Release ksh93n-  ---
+02-06-17  A bug in which user defined macros could cause a core dump in
+	  with MULTIBYTE mode has been fixed.
+02-06-17  A bug in which printf format specifiers of the form %2$s were causing
+	  a core dump has been fixed.
+02-06-17  A bug in which setting stty to noecho mode did not prevent the
+	  echoing of characters by ksh when emacs or viraw mode
+	  was enabled has been fixed.
+02-06-17  A bug in which background job completion could cause the sleep
+	  builtin to terminate prematurely has been fixed.
+02-06-17  A bug in which the shell could core dump if getopts was called
+	  when the OPTIND variable contained a negative value has been fixed. 
+02-06-10 +The edit mode prompt has been modified to handle escape sequences.  
+02-06-10  A bug which occurred for interactive shells in which the builtin
+	  cat command was used in command substitution on a file whose
+	  size was larger than PIPE_BUF has been fixed.
+02-06-10  A bug in which the trap on ERR was not being processed when
+	  set inside a function has been fixed.
+02-06-07  A bug in which function definitions could cause the history count
+	  to be decremented by one (and even become negative) has been fixed.
+02-06-05  A bug in read in which share mode could be enabled has been fixed.
+02-05-28  A bug which could occur when the last command of a script was
+	  a case statement and the action selected ended in ;& instead of ;;
+	  has been fixed.
+02-05-23  A bug with unary + introduced in ksh93k has been fixed.
+02-05-07  A bug in substitutions of the form ${var/pattern/string} in which
+	  a backslash was inserted in the replacement string when it contained
+	  a special pattern character has been fixed.
+02-05-01  A bug in the emacs edit mode which occurred in versions compiled
+	  for multibyte character sets which occurred when a repeated search
+	  was requested after a long line had been returned for the previous
+	  search has been fixed.
+02-04-02 +vi and emacs edit modes were modified so that tab completion is
+	  disabled when invoked from the read built-in.
+
+02-03-26  --- Release ksh93m+  ---
+02-03-26  A bug in which \ was not handled correctly when used in file
+	  expansion has been fixed.
+02-02-18  A bug in which lines beginning with a # were deleted from here
+	  documents when the here-document delimiter was followed by
+	  a comment has been fixed.
+02-12-06  An optimization bug in which ${!x[@]) was treated as invariant in
+	  a for loop has been fixed.
+02-02-06  A bug in which the ERR trap is not cleared for a script invoked
+	  by name from within a function has been fixed.
+02-01-08  A bug in which a shell script executed from within a subshell
+	  could cause this script to have an invalid pointer leading
+	  to a memory fault has been fixed. 
+02-01-07 +Added here documents of the form <<< word (as per zsh) which
+	  is equivalent to << delim\nword\ndelim.
+02-01-07  A bug in which the first word of a compound assignment,
+	  x=(word ...), was treated as a reserved word has been fixed.
+02-01-07  A bug in the handling of \ when noglob was enabled and a
+	  substitution of the form ${word op pattern} occurred in the
+	  same word has been fixed.
+02-01-07 +A compilation option, CMDLIB_BLTIN in the file OPTION, has
+	  been added.  When this options is set, all commands implemented
+	  in libcmd become shell builtin commands by default.
+02-01-07  A bug in which builtin foo, where foo is already a builtin
+	  would result in the builtin foo getting removed has been fixed. 
+02-01-07  A bug which the shell executed a command found in the current
+	  directory when PATH have no valid directories has been fixed.
+01-11-28  The value of $? was not being set when called with exit.
+01-11-28  If the last command was of the form (...) and a trap on EXIT or
+	  ERR was set, and the command inside () modified the trap, then
+	  the original trap wasn't executed.
+01-11-26 +The value for 0 is now preceded by the base number when
+	  the base was not 10.
+01-11-26 +The default has compilation mode has been changes so that
+	  viraw mode will always be on.
+
+01-10-31  --- Release ksh93m  ---
+01-10-31  A for loop optimizer bug for subshells contained withing for
+	  loops has been fixed.
+01-10-16  typeset without arguments no longer outputs variable names
+	  that do not have any attributes that are set.
+01-10-16  A bug introduced in ksh93l in which assignments specified with
+	  the exec built-in were not being expanded properly has been
+	  fixed.
+01-10-11  An optimization bug in which ${!x) was treated as invariant in
+	  a for loop has been fixed.
+01-10-11  Unsigned integer variables in bases other than 10 are printed now
+	  expand in that base with the base prefix.
+01-10-10  A number of typos in the self generating man pages for shell
+	  built-ins have been fixed.
+01-10-04  The self generated man pages for hist and fc were not working
+	  correctly and have been fixed.
+01-10-03  Yet another optimizer bug in which shell patterns were
+	  treated as invariants has been fixed.
+01-09-27  Two bugs relating to multibyte history searches and to find
+	  have been fixed.
+01-09-27  A bug introduced in ksh93k in which the PATH searching was
+	  not restored after running a command with an assignment list 
+	  has been fixed.
+01-09-26  A bug in which a zero filled field was treated as octal when
+	  converted to integer has been fixed.
+01-09-26  Yet another bug in the optimization of for loops related to
+	  recursive functions with break or continue statements has been fixed.
+01-09-25 +The exponentiation operator ** was added to the shell arithmetic
+	  evaluation.  It has higher precedence than * and is left
+	  associative.
+01-09-25  The code was modified to use the ast multibyte macros
+	  and functions for handing multibyte locales.
+01-09-25 +The expansion ${parameter:offset:length} now handles negative
+	  offsets which cause offsets to be measured from the end.
+01-09-25  Some spelling errors in the documentation were corrected.
+01-09-24 +The /dev/tcp/host/port and /dev/udp/host/port now allow
+	  the ports to be specified by service name. 
+01-09-24 +The change staring with ksh93g in which the the appropriate
+	  library path variable is prepended with a corresponding library
+	  directory has been modified.  With the new method, only the
+	  library path defined in the file named .paths in the directory
+	  where the executable is found will be modified.  See the
+	  man page for more details.
+01-09-23 +The .fpath file (see ksh93h) is no longer looked for in each
+	  directory on the path to locate function directories.  The
+	  file named .paths is used instead.
+01-09-23  A bug in which IFS was not being restored after being changed in
+	  a subshell has been fixed.
+01-09-16 +With the vi and emacs edit modes, after a list of command
+	  or functions is generated with = or M-= respectively,
+	  any element from the list can be pasted on the command line
+	  by preceding the = or M-= with a numeric parameter specifying
+	  the position on the list.
+01-09-16  A bug in ksh93l caused command completion not to find aliases
+	  and functions.  Command listing from the edit mode was presented
+	  in reverse order.  This has been fixed.
+01-09-13  Another bug in the optimization of for loops related to subshells
+	  when traps were set has been fixed.
+01-09-07  A change in ksh93l caused brace expansion to stop working
+	  and this has been fixed.
+01-09-04  A bug introduced in ksh93k in which an arithmetic statement
+	  within a function that used name references did not follow the
+	  reference has been fixed.
+01-09-04  A bug introduced in ksh93l in which export -p did not prefix
+	  each export with the word export has been fixed.
+01-08-29  A bug in multibyte input which occurred when a partial multibyte
+	  character was received has been fixed.
+01-08-29  A bug introduced in ksh93l which could cause a core dump
+	  when an assignment list containing PATH is specified inside
+	  command substitution has been fixed.
+01-08-09  Another bug in the optimization of for loops in ksh93l caused
+	  errors in recursive functions using local variables that
+	  contained for loops has been fixed.
+01-07-27  A bug in which IFS would be unset after a command substitution
+	  inside a here document has been fixed.
+01-07-26  To conform to the POSIX standard, if you invoked ksh name,
+	  and name does not contain a /,  it will first try to run
+	  one in the current directory whether it is executable or not
+	  before doing a path search for an executable script.  Earlier
+	  versions first checked for an executable script using the
+	  PATH variable.
+01-07-23  A bug in which unset -f invoked in a subshell could unset a
+	  function defined in the parent has been fixed.
+01-07-16  A bug in the optimization of for loops in ksh93l caused
+	  name references to be treated as invariants has been fixed.
+01-07-09  A bug in which a discipline function applied to a local variable
+	  could cause a shell exception has been fixed.  Discipline
+	  functions can only be specified for global variables. 
+
+01-06-18  --- Release ksh93l  ---
+01-06-18  A bug in assigning integers larger than can be represented as
+	  long integers to floating point variables has been fixed.
+01-06-18  A bug in the handling of unsigned integers (typeset -ui) has
+	  been fixed.
+01-06-04  The evaluation of the PS1 prompt no longer effects the value
+	  of the $? variable.
+01-06-01  A small memory leak from subshells has been fixed.
+01-05-22  A bug in which attributes for variables that did not have
+	  values would be lost after a subshell has been fixed.
+01-05-22 +The %R format has been added to convert a shell pattern into
+	  an extended regular expression.
+01-05-22 +The escape sequences \e, \cX, \C[.collating-element.], and
+	  \x{hex} have been added to ASCII-C strings and to printf format
+	  strings.
+01-05-20 +Patterns of the form {n}(pattern) and {m,n}(pattern) are now
+	  recognized.  The first form matches exactly n of pattern whereas,
+	  the second form matches from m to n instances of pattern.
+01-05-20 +The shell allows *-(pattern), +-(pattern),  ?-(pattern),
+	  {m,n}-(pattern}, and @-(pattern) to cause the minimal
+	  match of pattern to be selected whenever possible rather
+	  than the maximal (greedy) match. 
+01-05-20 +The character class [:word:] has been added to patterns.
+	  The word class is the union of [:alnum:] and the character _.
+01-05-20 +Inside (...) pattern groups, the \ character is now treated
+	  specially even when in an enclosing character class.  The
+	  sequences, \w, \d, \s are equivalent to the character classes
+	  word, digit, and space respectively.  The sequences \W, \D,
+	  and \S are their complement sets. 
+01-05-20 +The shell now recognizes pattern groups of the form
+	  ~(options:pattern) where options or :pattern can be omitted.
+	  Options use the letters + and - to enable and disable options
+	  respectively.  The option letters g (greedy), i (ignore case)
+	  are used to cause maximal matching and to cause case
+	  insensitive matching respectively.  If :pattern is also
+	  specified, these options are only in effect while this
+	  pattern is being processed.  Otherwise, these options remain
+	  in effect until the end of the pattern group that they are contained
+	  in or until another ~(...) is encountered.  These pattern groups
+	  are not counted with respect to group numbering.
+01-05-14  When edit completion, expansion, or listing occurs in the
+	  middle of a quoted string, the leading quote is ignored when
+	  performing the completion, expansion, or listing.
+01-05-14  A small memory leak from subshells has been fixed.
+01-05-10  A bug in which open files were not restored after a subshell
+	  that had used exec to replace a file has been fixed. 
+01-05-10 +Redirection to a null file name now generates an error message. 
+01-05-09  The shell now rejects some invalid parameter substitutions that
+	  were previously processed in undefined ways.
+01-05-09  A bug in which the output of select was not flushed before the
+	  read when input did not come from the terminal has been fixed. 
+01-05-08  A bug in which job ids would not be freed for interactive shells
+	  when subshells ran built-ins in the background has been fixed.
+01-05-08 +The FPATH variable now requires an explicit . to cause the
+	  current directory to be treated as a function directory. 
+01-05-08  A bug in read -n when echo mode was disabled has been fixed.
+01-05-07  A bug in which function definitions could be listed as part
+	  of the history has been fixed.
+01-04-30 +This release uses a new and often much faster pattern matcher than
+	  earlier releases.
+01-04-30 +An optimizer now eliminates invariant parameter expansions from
+	  for while and until loops.
+01-04-30 +The variable .sh.match is set after each pattern match (# % or /)
+	  in a variable substitution.  The variable .sh.match is an
+	  indexed array with element 0 being the complete match. 
+	  The array is only valid until the next subsequent pattern
+	  match or until the value of the variable changes which ever
+	  comes first.
+01-04-30 +A self generating man page has been added to shcomp.  Also,
+	  shcomp now stops compiling when it finds an exit or exec
+	  command and copies the remainder so that it can be used
+	  for standard input.
+01-04-30 +The shcomp command was modified so that it can work in an
+	  EBCIDIC environment and that binary scripts are portable
+	  across environments.
+01-04-30  A bug in the handling of a trailing : in PATH has been fixed.
+01-04-30  A bug in which the builtin version of a command would get invoked
+	  even though the full pathname for the command was specified
+	  has been fixed.
+01-04-30  A bug in which read would loose the last character when
+	  reading the last line of a file that did not contain a new-line
+	  character has been fixed.
+01-04-23  A bug on some systems in which in vi mode the end of file
+	  character and end of line character could be swapped has
+	  been fixed.
+01-04-23  A bug on some systems in which invoking a shell script that
+	  did not have execute permission could set the exit value to
+	  127 rather than 126 has been fixed.
+01-04-20  A bug in which read -n from a pipe would block if fewer than
+	  n characters was received has been fixed.
+01-04-09  A bug in which invalid patterns, for example, ) by itself,
+	  was not treated as a string has been fixed so that if i=')',
+	  then [[ $i == $i ]] is true.
+01-04-09 +The shell arithmetic now interprets C character constants.
+01-04-09  A bug in which a non-zero return from a function defined
+	  with the function reserved word did not trigger the ERR
+	  trap or exit with set -e has been fixed.
+01-04-02  A bug on some systems, in which characters above 127 were
+	  not displayed correctly in vi or emacs edit mode has been fixed.
+01-04-02  A bug on some systems, introduced in the 'k' point release, in
+	  which the erase character in viraw mode was moving the cursor
+	  to the left without erasing the character has been fixed.
+01-04-02  On some systems the wcwith() function was returning a wrong
+	  value for characters and caused characters to be displayed
+	  incorrectly from the shell edit modes.  A work around for
+	  this problem has been added. 
+01-03-26  A bug in which valid scripts could produce syntax errors
+	  when run with locales that considered characters such as "'"
+	  to be space characters has been fixed.
+01-03-20  A bug in which an syntax error in an arithmetic expression
+	  entered interactively could cause the shell to go into
+	  an infinite loop outputting the error message has been fixed.
+01-03-10 +ksh93 accepts -l as a synonym for -L in test on systems for
+	  which /bin/test -l tests for symbolic links.
+01-03-10  A bug in parsing scripts in which { and } are used in place of
+	  in and esac in case statements embedded in compound commands
+	  has been fixed.  Use of { and } for in and esac is obsolete.
+01-03-06  A bug in which an argument of the form foo=bar was not
+	  being passed correctly to a traced function whose name
+	  was foo has been fixed.
+01-03-02  Using $(trap -p name) did not print the name of the current
+	  trap setting for trap name.
+01-02-26  Exported floating point variables gave incorrect results
+	  when passing them to ksh88.  This has been fixed.
+01-02-25  A race condition in which a coprocess which completed too quickly
+	  would not allow subsequent coprocesses to start has been fixed.
+01-02-25  The 'g' format specifier is now handled by printf.  It had
+	  inadvertently been omitted.
+01-02-20  The + was not being displayed during an execution trace
+	  with the += assignment operator.
+01-02-19  The error message which occurs when the interpreter name
+	  defined on the #! line does not exist is more informative.
+01-02-19  A bug in which $0 would not be set correctly when a
+	  script with #! was invoked by full pathname from the
+	  directory of the script has been fixed.
+01-02-19  A shell script did not always pick up tty mode changes
+	  made by external commands such as stty which could
+	  effect the behavior of read.
+01-02-19  The -u, -g, and -k unary tests did not give the correct
+	  results when used with negation and this has been fixed.
+
+01-02-05  --- Release ksh93k+  ---
+01-02-05  The sequence \<newline> inside $'...' was not incrementing
+	  the line count and this has been fixed.
+01-02-05 +Modified expansion of "${@-}" so that if no arguments are set
+	  it results in null string rather than nothing.
+01-02-02  memory leak problem with local variables in functions fixed.
+01-01-25 +allow arithmetic expressions with float%int and treat them
+	  as ((int)float)%int rather than as an error. 
+01-01-19  read -n1 was not working and has been fixed.
+01-01-17 +ksh now handles the case in which a here document in command
+	  substitution $() is terminated by the trailing ).  Previously,
+	  a new-line was needed at the end of the delimiter word. 
+01-01-02  A bug in which a KEYBD trap would cause a multi-line token
+	  to be processed incorrectly has been fixed.
+00-12-10 +Arithmetic integer constants can now have L and U suffices. 
+00-12-10  A bug in the processing of arithmetic expressions with compound
+	  variables when the -n option is on has been fixed.
+00-12-08  A bug in M-f and M-b from emacs mode has been fixed.  This
+	  bug only occurs when ksh93 is compiled without MULTIBYTE enabled.
+00-11-29  A bug in which jobs -p would yield 0 for background
+	  jobs run in a script has been fixed.
+00-11-21  A bug in integer arrays in which the number of elements is
+	  incorrect when the ++ operator is applied to a non-existing
+	  element has been fixed.  For example, integer x; ((x[3]++)).
+00-11-20  A timing bug in which the shell could reset the terminal
+	  group to the wrong value in the case that the a new process
+	  changes the terminal group during startup has been fixed.
+
+00-10-27  --- Release ksh93k  ---
+00-10-27  Using tab for completion now works only when applied
+	  after a non-blank character at the end of the current line.
+	  In other case a tab is inserted.
+00-10-27  A bug in the emacs edit mode for ^X^E has been fixed.
+	  The ^X^E sequence is supposed to invoke the full editor
+	  on the current command.
+00-10-18  A bug in which expansions of the form ${var//pattern/string}
+	  did not work correctly when pattern was '/' or "/" has
+	  been fixed.
+00-10-18 +The output format for indexed arrays in compound variables
+	  has been modified so that it can be used as input.
+00-10-18  Assignments with name references (typeset -n) will now
+	  implicitly unreference an existing name reference.
+00-10-17  A bug the += append operator when a single array element
+	  is appended to a variable that is not an array has been fixed.
+00-10-16  A bug in which the SIGCONT signal was being sent to
+	  each process will kill -0 or kill -n 0 has been fixed.
+00-10-12 +The arithmetic evaluation portion has been rewritten to
+	  perform a number of optimizations.
+00-10-10  A bug in which name prefix matching ${!name.*} was not
+	  checking name to see if it was a name reference has been fixed.
+00-09-26  A bug in the multibyte version in which the width of for
+	  non-printing characters was not correct has been fixed.
+00-09-12 +Made changes to get multibyte editing work on UWIN for windows
+00-09-12  A bug in which multibyte characters would be displayed incorrectly
+	  has been fixed.
+00-08-08  Removed build dependency on iswprint() and iswalph().
+00-07-20  In some cases the read builtin would read more than a single
+	  line from a pipe on standard input and therefore leave the seek
+	  position in the wrong location.
+00-07-05 +If the directory / is on the path, a / will not be inserted
+	  between the directory and the file name during path searching
+	  to avoid searching // for systems that treat this specially.
+00-06-26  A bug in which on rare occasions wait could return before all
+	  jobs have completed has been fixed.
+00-06-21  A bug in which backspace did not work correctly during the
+	  R replace directive in vi-mode has been fixed.
+00-06-12 +Added variable name completion/expansion/listing  to the set of
+	  completions.  Variable name completions begin with $ or "$ followed
+	  by a letter. 
+00-05-09  --- Release ksh93j  ---
+00-05-09  Modified command substitution to avoid using /tmp files when
+          run on read-only file systems. 
+00-04-17 +Modified printf to handle '%..Xc' and '%..Xs' options where X
+	  is not an alpha character.  Previous versions core dumped with this.
+00-04-10 +Changes to multibyte editing code were made to use standard
+	  ISO C functions rather than methods devised before the standard.
+00-04-09  Add %H options to printf to output strings with <"'&\t> properly
+	  converted for use in HTML and XML documents.
+00-04-07 +Modified getopts builtin to handle \f...\f in usage string
+	  by invoking specified function.
+00-04-04  Added self generating man pages for bg, fc, fg, disown, jobs,
+	  hist, let, ., and ulimit.
+00-03-30 +The append operator += has been added and can be used
+	  for all assignments, strings, arrays, and compound variables.
+00-03-30 +Code was modified in several places to support automatic
+	  generation of C locale dictionaries.
+00-03-28  A bug in which the set and trap commands invoked with --name
+	  type arguments would terminate the invoking script  has
+	  been fixed.
+00-03-27  A bug in which the library path variable was not updated  
+	  correctly on some systems as described in the 'g' point
+	  release has been fixed. 
+00-03-07  printf now returns a non-zero exit status when one of
+          its arguments cannot be converted to the given type. 
+00-03-05  The return value and error message for a command that
+          was found on the path but was not executable was set
+          incorrectly.
+00-03-05  A prototype for ioctl() was removed from the vi edit mode.
+
+00-01-28  --- Release ksh93i  ---
+00-01-28 +Most of the built-in commands and ksh itself are now
+          self documenting.  Running command --man will produce
+          screen output.  Running command --html produces the
+          man page in html format.
+00-01-28 +The getopts builtin can process command description
+          strings to produce man pages.
+00-01-28  A bug in which a script could terminate when getopts
+          encountered an error when invoked inside a function
+          has been fixed.
+00-01-28  When a symbolic link was specified as the name of
+          the script to invoke by name, the value of $0 was
+          set to the real file name rather than the link name
+          in some cases and this has been fixed.
+00-01-28  A bug in which the precision given as an argument
+	  to printf was not working has been fixed.
+
+99-03-31  --- Release ksh93h  ---
+99-03-31 +The PATH search algorithm has been modified to look
+	  for a file named .fpath in each bin directory and if
+	  found, to search for functions in this directory if
+	  it cannot find the command in that directory.
+99-03-31 +When performing pathname expansion, the shell checks
+	  to see whether each directory it reads is case sensitive
+	  or not, and performs the matching accordingly.
+99-03-31 +The %T format for printing formatted date/time.
+99-03-31 +The emacs and vi modes now handle arrow keys when
+          they use standard ANSI escape sequences.
+99-03-31 +The TAB key can be used for completion in emacs and viraw mode.
+99-03-31  A bug in setting .sh.editchar during the KEYBD trap
+	  for the MULTIBYTE option was fixed in release ksh93h.
+99-03-31  A bug in shcomp for compilation of unary operators with [[...]]
+	  has been fixed.
+99-03-31  A bug in which the value of $? was changed when executing
+	  a keyboard trap has been fixed. 
+99-03-31  The handling of SIGCHLD has been changed so that the
+	  trap is not triggered while executing trap commands
+	  to avoid recursive trap calls.
+99-03-31  A bug in which a local variable in a function declared readonly
+	  would generated an error when the function went out of
+	  scope has been fixed.
+99-03-31  A bug in which \<new_line> entered from the keyboard
+	  with the KEYBD trap enabled has been fixed.
+99-03-31  The error message for a misplaced ((, for example print ((3),
+	  was often garbled and has been fixed.
+99-03-31  A bug in the KEYBD trap in which escape sequences of the form
+	  <ESC>[#~ were not being handled as a unit has been fixed.
+99-03-31  A bug in which ksh would consider expressions like [[ (a) ]]
+	  as syntax errors has been fixed.
+99-03-31  A function defined as foo() without a function body
+	  was not reported as a syntax error.
+99-03-31  A bug in which ksh could run out of file descriptors when
+	  a stream was repeatedly opened with exec and read from
+	  has been fixed.
+
+98-04-30  --- Release ksh93g  ---
+98-04-30 +The pipefail option has been added.  With pipefail
+	  enabled, a pipeline will not complete until all
+	  commands are complete, and the return value will
+	  be that of the last command to fail, or zero if
+	  all complete successfully.
+98-04-30 +The name-value pair library uses the cdt library rather
+	  than the hash library.  This change should be transparent
+	  to applications.
+98-04-30 +On the U/WIN version for Window 95 and Windows NT,
+          when a directory beginning with a letter followed by
+          a colon is given to cd, it is assumed to be an absolute
+          directory
+98-04-30 +When an executable is found on a given path,
+	  the appropriate library path variable is prepended
+	  with a corresponding library directory.
+98-04-30  A bug in which a name reference could be created to
+	  itself and later cause the shell to get into an infinite
+	  loop has been fixed.
+98-04-30  A bug in shcomp relating to compound variables was fixed.
+98-04-30  A bug introduced in ksh93e in which leading 0's in -Z
+	  fields caused the value to be treated as octal for arithmetic
+	  evaluation has been fixed.
+98-04-30  A bug when a name reference with a shorter name than
+          the variable it references was the subject of a compound
+	  assignment has been fixed. 
+98-04-30  A bug which in which assignment to array variables in
+	  a subshell could effect the parent shell has been
+	  fixed.
+98-04-30  read name?prompt was putting a 0 byte at the end of the
+	  prompt on standard error.
+98-04-30  A bug in [[ string1 > string2 ]] when ksh was run with -x
+	  has been fixed.
+98-04-30  A bug in which the escape character was not processed
+	  correctly inside {...} when brace expansion is enabled
+	  has been fixed, for example {\$foo}.
+98-04-30  A bug in line continuation in here-documents has been
+	  fixed.
+98-04-30  The default base when not specified with typeset -i is
+	  10 in accordance with the documentation.  Previously,
+	  the value was determined by the first assignment.   
+98-04-30  A parsing bug in which a # preceded alphanumeric
+	  characters inside a command substitution caused
+	  a syntax error to be reported has been fixed.
+98-04-30  A bug in which a decimal constant represented as 10#ddd
+	  where ddd was more than five digits generated a syntax
+	  error has been fixed.
+98-04-30  A bug in here document expansion in which ${...} expansions
+	  were split across buffer boundaries has been fixed.
+98-04-30 +The sh_fun() function now takes third argument which
+	  is an argument list for the invoked discipline function
+	  or built-in.
+98-04-30 +A callback function can be installed which will give
+          notification of file duplications and file closes.
+98-04-30  When ksh is compiled on systems that do not use fork()
+	  current option settings where not propagated to sub-shells.
+
+97-06-30  --- Release ksh93f  ---
+97-06-30 +Hostnames in addition to host addresses can be given in
+	  /dev/tcp/host/port virtual file names.
+97-06-30  File name completion and expansion now quotes special
+	  characters in file names from both emacs and vi edit modes.
+97-06-30  An empty for list behave like a for list with null expansions.
+	  It produces a warning message with sh -n.
+97-06-30 +The code has been modified to work with EBCDIC as well as ASCII.
+97-06-30  A bug which would cause the secondary prompt to be
+	  displayed when a user entered a literal carriage
+	  return has been fixed.
+97-06-30  A bug which caused ksh read -s name to core dump was
+	  fixed.
+97-06-30  A bug with the expansion of \} and \] inside double
+	  quoted strings that also contained variable expansions
+	  has been fixed
+97-06-30  Changes in the ksh93e point release caused autoload
+	  functions invoked from within command substitution
+	  to fail.  This has been fixed.
+97-06-30  A bug in the processing of here-documents that could
+	  prevent variable substitution to occur after $(...) command
+	  substitution for long here documents has been fixed.
+97-06-30  A bug caused by a race condition that could cause SIGTERM
+	  to be ignored by a child process has been fixed.
+97-06-30  A bug which prevented the startup of a coprocess immediately
+	  after killing a running coprocess has been fixed.
+97-06-30  ulimit foobar, where foobar is not an arithmetic
+	  expression, now gives an error message as it did with ksh88
+	  instead of setting the file size limit to 0.
+97-06-30  A bug which could cause an interactive shell to terminate when
+	  the last process of a pipeline was a POSIX function was fixed.
+97-06-30  A bug which could cause command substitution of a shell script
+	  to core dump has been fixed.
+97-06-30  A security hole was fixed in suid_exec.
+97-06-30  Arithmetic functions such as pow() that take more than
+	  one argument, did not work if arguments other than the
+	  first contained parenthesized sub-expression.
+97-06-30  The error message from a script containing an incomplete
+	  arithmetic expression has been corrected.
+97-06-30  A bug which caused a core dump on some machines when
+	  the value of a name reference contained a positional
+	  parameter and the name reference was not defined inside
+	  a function has been fixed.
+97-06-30  Arithmetic expressions now correctly handle hexadecimal
+	  constants.
+97-06-30  A bug in which integer variables could be expanded
+	  with a leading 10# when declared with typeset -i
+	  multiple times has been corrected.
+97-06-30  A bug in which IFS wasn't correctly restored when
+	  set within command substitution has been fixed.
+97-06-30  The _ character is now considered as part of a word
+	  with the M-f and M-b emacs directives as it was in ksh88.
+97-06-30  A bug in brace pattern expansions that caused expressions
+          such as {foo\,bar,bam} to expand incorrectly have been fixed.
+
+
+96-07-31  --- Release ksh93e  ---
+96-07-31 +The math functions, atan2, hypot, fmod, and pow were added.
+96-07-31 +When a shared library is loaded, if the function lib_init()
+	  is defined in the library, it is invoked the first time that
+	  the library is loaded with builtin -f library.
+96-07-31  The k-shell information abstraction database option, KIA,
+          has been revamped.
+96-07-31  Empty command substitutions of the form $() now work.
+	  whence -v foo now gives the correct result after calling
+	  builtin -d foo. 
+96-07-31  A bug in right to left arithmetic assignment for which
+	  the arithmetic expression (( y = x = 1.5 )) did not
+	  yield 1 for y when x was declared typeset -i was fixed.
+96-07-31  printf has been fixed to handle format  containing \0
+	  and/or \0145 correctly.  In addition, characters following
+	  %b in the format string are no longer displayed when
+	  the operand contains \c.
+96-07-31  A bug in printf that could cause the %E format to
+	  produce unnormalized results has been fixed.
+96-07-31  A bug which causes some arithmetic expressions to be
+	  incorrectly evaluated as integer expressions rather
+	  that floating point has been fixed.
+96-07-31  Functions defined inside a subshell no longer remain
+	  defined when the subshell completes.
+96-07-31  The error message from sh -c ';echo foo' has been
+	  corrected.
+96-07-31  The format for umask -S has been changed to agree
+	  with the specification in the POSIX standard.
+96-07-31  A bug that caused side effects in subscript evaluation
+	  when tracing was enabled for subscripts using ++ or --
+	  has been fixed.
+96-07-31  To conform to the Posix standard getopts has been changed
+	  so that the option char is set to ? when it returns with
+	  a non-zero exit status.
+96-07-31  The handling of \} inside ${name...} has been fixed so
+	  that the \ quotes the }.
+96-07-31  A bug that caused the read builtin to resume execution
+	  after processing a trap has been fixed.
+96-07-31  [[ -s file ]] has been fixed so that if file is open
+	  by ksh, it is flushed first.
+96-07-31  In some cases attributes and sizes for non exported
+	  variables weren't being reset before running a script.
+96-07-31  The value of TMOUT was affected by changes make to
+	  it in a subshell.
+96-07-31  The jobs command did not reflect changes make by
+	  sending the CONT signal to a command.
+96-07-31  The error message for ksh -o unknown was incorrect.
+96-07-31  Functions invoked as name=value name, did not use
+	  values from the calling scope when evaluating value.
+96-07-31  A bug in which the shell would reexecute previously
+	  executed code when a shell script or coprocess was
+	  run in the background has been fixed.
+96-07-31  A bug in which an empty here-document would leave
+	  a file descriptor open has been fixed.
+96-07-31  A bug in which $(set -A array ...) would leave a
+	  side effect has been fixed.
+96-07-31  A discipline function for a global variable defined
+	  within a function defined with the function keyword,
+	  incorrectly created a local variable of the same name
+	  and applied the discipline to it.
+
+95-08-28  --- Release ksh93d  ---
+95-08-28  The \ character was not handled correctly in replacement
+	  patterns with ${x/pattern/replace}.
+95-08-28  A bug with read in which the line did not end with
+	  a new-line has been fixed.
+95-08-28  A bug in file name generation which sometimes
+	  appended a . for filenames that ended in / has
+	  been fixed.
+95-08-28 +If a process is waited for after a status has
+	  been returned by a previous wait, wait now
+	  returns 127.
+95-08-28  A bug with hist (fc) -e which prevented a command
+	  to re-executed after it had been edited has been fixed.
+95-08-28  A bug which prevented quoting from removing the meaning
+	  of unary test operators has been fixed.
+95-08-28  A bug with typeahead and KEYBOARD traps with the
+          MULTIBYTE option set has been fixed.
+95-08-28 +Builtin functions can take a third argument which is
+          a void*.
+95-08-28  The nv_scan() function can restrict the scope of a walk
+          to the top scope.
+
+95-04-31  --- Release ksh93c  ---
+95-04-31  The expansion of "$@" was incorrect when $1 was the null
+	  string.
+95-04-31  A bug which could incorrectly report a syntax error in
+	  a backquoted expression when a $ was preceded by \\
+	  has been fixed.
+95-04-31  A bug which prevented the shell from exiting after
+	  reporting an error when failing to open a script
+	  has been fixed.
+95-04-31  A bug that could lead to memory corruption when a
+	  large here document that required parameter or command
+	  substitution was expanded has been fixed.
+95-04-31  A bug that could cause a core dump on some systems
+	  after ksh detected an error when reading a function
+	  has been fixed.
+95-04-31  A bug which could cause a coprocess to hang when
+	  reading from a process that has terminated has been fixed.
+95-04-31  A bug which caused a script to terminate when set -e
+	  was on and the first command of and && or || list
+	  failed has been fixed.
+95-04-31  A bug with here documents inside $(...) when the delimiter
+	  word is an identifier has been fixed.
+95-04-31  A bug which caused $0 to display the wrong value when
+	  a script was invoked as an argument to the . command
+	  and the eval command has been fixed.
+95-04-31  A bug that could cause the built-in sleep to hang
+	  has been fixed.
+95-04-31  A bug introduces in 12/28/93b which caused the backslash
+	  to be removed when it was followed by digit inside double
+	  quotes in some instances has been fixed.
+95-04-31  A bug which could cause a core dump if ksh was invoked with
+	  standard input closed has been fixed.
+95-04-31  A bug which could cause a core dump if typeset -A was
+	  specified for an existing variable has been fixed.
+95-04-31  Variables that were unset but had attributes such as readonly
+	  and export were not listed with readonly, export and typeset.
+95-04-31  Several problems with signals have been fixed.
+95-04-31  A bug which prevented ulimit -t from working has been fixed. 
+	  Also, a bug in which failed ulimits could cause a core dump
+	  has also been fixed.
+95-04-31  A bug in expansion of the form ${name/#pattern/string} and
+	  ${name/%pattern/string} has been fixed.
+95-04-31  A bug which caused read -r on a line that contained only
+	  blanks to get a non-null value has been fixed.
+95-04-31  A bug introduced in the 'a' point release in which
+	  ${x='\\'} expanded to \ when x was unset has been fixed.
+95-04-31  A bug which prevented a trap on EXIT from being executed
+	  when the last command in a script was a function invocation
+	  has been fixed.
+95-04-31  A bug which caused an interactive shell ignore input when
+	  standard error was redirected to a file with exec,
+	  and then restored with exec 2>&1 has been fixed.
+95-04-31  An interactive shell turns on monitor mode even when
+	  standard error has been redirected to a file.
+95-04-31  A bug which could cause standard input to be incorrectly
+	  positioned for the last command of a script has been fixed.
+95-04-31  A bug in the edit modes which allowed walking back in
+	  the history file for more than HISTSIZE commands has
+	  been fixed.
+95-04-31  A bug which could cause a core dump if variable TMPDIR was
+	  changed between two command substitutions has been fixed.
+95-04-31. A bug which prevented a trap on EXIT from being cleared
+	  has been fixed.
+95-04-31  A bug fixed for the v directive in vi MULTIBYTE has been
+          fixed.
+95-04-31  Code to for IFS handling of multibyte characters has
+          been added.
+95-04-31  The displaying of multibyte strings in export, readonly,
+          typeset, and execution traces has been fixed.
+95-04-31  Variables inside functions are now statically scoped.
+	  The previous behavior was never documented.
+95-04-31  Variables inside functions are now statically scoped.
+          The previous behavior was never documented.
+95-04-31  A few changes have been made to the name-value library
+          that affect built-ins that use disciplines.  The
+          changes allow disciplines to be shared by variables
+          and should make it possible to add new disciplines
+          without recompilation.
+95-04-31 +The name-value library interface has undergone significant
+          change for this revision.  See the new nval.3 man page.
+
+94-12-31  --- Release ksh93b  ---
+94-12-31 +Variables inside functions are now statically scoped.
+          The previous behavior was never documented.
+94-12-31 +If IFS contains two consecutive identical characters belonging
+	  to the [:space:] class, then this character is treated as
+	  a non-space delimiter so that each instance will delimit
+	  a field.  For example, IFS=$'\t\t' will cause two consecutive
+	  tabs to delimit a null field.
+94-12-31 +The getopts command has a -a name option that specifies a
+	  name that will be used for usage messages.
+94-12-31  A bug which caused unset RANDOM to dump core has been
+	  fixed.
+94-12-31  A bug which prevented return for terminating a profile
+	  or ENV file has been fixed.
+94-12-31  A bug which prevented standard input from being
+	  directed to /dev/null for background jobs when
+	  monitor mode was turned off has been fixed.
+94-12-31  Statements of the form typeset -options var[expr]=value
+	  did not perform substitutions on expr as expected.
+94-12-31  A bug which prevented the shell from sending a HUP
+	  signal to some background jobs that were not disowned
+	  has been fixed.
+94-12-31  A bug which allowed a script to trap signals that are
+	  ignored at the time that the shell was invoked by exec
+	  has been fixed.
+94-12-31  A bug which could cause a core dump when a discipline
+	  function was unset within a discipline was fixed.
+94-12-31  The typeset builtin now accepts a first argument of
+	 + or - for compatibility with ksh88.
+94-12-31  For compatibility with ksh88, the results of expansions
+	  of command arguments will treat the extended character
+	  match characters ()|& as ordinary characters.
+94-12-31  A bug which caused read to fail on a file that was
+	  open for read/write with <> when the first operation
+	  was print or printf has been fixed.
+94-12-31  When a job is suspended, it is put on the top of
+	  the job list as required by the POSIX standard.
+94-12-31  The value of OPTARG when an option that required
+	  an argument but didn't have one was incorrect in the
+	  case the the option string began with a :.
+94-12-31  A bug which caused the terminal to get into a bad
+	  state with some KEYBD traps in vi-mode has been fixed.
+94-12-31  A bug which caused an invalid trap to cause a script
+	  to terminate, rather than just return an error, has
+	  been fixed.
+94-12-31  Backreferencing sub-expressions in patterns and replacement
+	  strings now works.
+94-12-31  A bug in chmod which caused the -R option to fail has
+	  been fixed.
+94-12-31 +More signal names have been added for Solaris
+
+94-06-30  --- Release ksh93a  ---
+94-06-30  An expansion bug which causes portions of a word after
+	  a $((...)) expansion that contains a nested $var expansion
+	  to be lost has been fixed.
+94-06-30  A bug that caused a core dump when a script that did not
+	  have PWD set and did a cd inside command substitution
+	  has been fixed.
+94-06-30  A bug which caused a core dump on some machines when
+	  the LANG variable was assigned to has been fixed.
+94-06-30  A bug which incorrectly handled set disciplines that
+	  performed arithmetic evaluation when the discipline
+	  was called from the arithmetic evaluator has been fixed.
+94-06-30  A bug caused by an EXIT trap inside a function that
+	  was executed in a subshell was fixed.
+94-06-30  If foo is a function, and not a program, then command foo
+	  now reports that foo isn't found rather than invoking foo.
+94-06-30  The previous version incorrectly listed -A as an
+	  invocation option.  The -A option is only for set. 
+94-06-30  A bug was fixed which caused ksh to loop when execution trace
+	  was enabled and the PS4 prompt required command substitution.
+94-06-30  A bug which could cause the job control switch character
+	  to be disabled when a script that enabled monitor mode
+	  terminated was fixed.
+94-06-30  A bug in the macro expansion global replacement operator //,
+	  when the pattern began with a [ or +( has been fixed.
+94-06-30  A bug which prevented ~ expansion from occurring when
+	  it was terminated with a colon inside an assignment
+	  has been fixed.
+94-06-30  A bug in the dot command which prevented autoload functions
+	  from working has been fixed.
+94-06-30  A bug which caused a variable to be unset if the
+	  its value were expanded inside a set discipline has
+	  been fixed.
+94-06-30  Whence -a now longer reports that a defined function
+	  is undefined.
+94-06-30  A bug on some systems in which $0 would be incorrect
+	  in scripts invoked by name has been fixed.
+94-06-30  Here documents with an empty body now work.
+94-06-30  A bug which disabled argument passing and resetting
+	  of options for a script invoked by name inside a
+	  function has been fixed.
+94-06-30  A bug in which an EXIT trap set the caller of a function
+	  would be executed if a command called inside a function
+	  was not found has been fixed.
+94-06-30  A bug which allowed a script to trap signals that are
+	  ignored at the time that the shell was invoked has
+	  been fixed.
+94-06-30  A bug which caused 2<&1- when applied to a shell built-in
+	  to leave standard input closed has been fixed.
+94-06-30  A bug which caused the shell to incorrectly parse
+	  $() command substitutions with nested case statements
+	  has been fixed.
+