Changes 3.8.3:

Added support for common table expressions and the WITH clause.
Added the printf() SQL function.
Added SQLITE_DETERMINISTIC as an optional bit in the 4th argument to the sqlite3_create_function() and related interfaces, providing applications with the ability to create new functions that can be factored out of inner loops when they have constant arguments.
Add SQLITE_READONLY_DBMOVED error code, returned at the beginning of a transaction, to indicate that the underlying database file has been renamed or moved out from under SQLite.
Allow arbitrary expressions, including function calls and subqueries, in the filename argument to ATTACH.
Allow a VALUES clause to be used anywhere a SELECT statement is valid.
Reseed the PRNG used by sqlite3_randomness(N,P) when invoked with N==0. Automatically reseed after a fork() on unix.
Enhance the spellfix1 virtual table so that it can search efficiently by rowid.
Performance enhancements.
Improvements to the comments in the VDBE byte-code display when running EXPLAIN.
Add the "%token_class" directive to LEMON parser generator and use it to simplify the grammar.
Change the LEMON source code to avoid calling C-library functions that OpenBSD considers dangerous. (Ex: sprintf).
Bug fix: In the command-line shell CSV import feature, do not end a field when an escaped double-quote occurs at the end of a CRLN line.

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