Protocol Buffers v3.14.0 Protocol Compiler The proto compiler no longer requires a .proto filename when it is not generating code. Added flag --deterministic_output to protoc --encode=.... Fixed deadlock when using google.protobuf.Any embedded in aggregate options. C++ Arenas are now unconditionally enabled. cc_enable_arenas no longer has any effect. Removed inlined string support, which is incompatible with arenas. Fix a memory corruption bug in reflection when mixing optional and non-optional fields. Make SpaceUsed() calculation more thorough for map fields. Add stack overflow protection for text format with unknown field values. FieldPath::FollowAll() now returns a bool to signal if an out-of-bounds error was encountered. Performance improvements for Map. Minor formatting fix when dumping a descriptor to .proto format with DebugString. UBSAN fix in RepeatedField. When running under ASAN, skip a test that makes huge allocations. Fixed a crash that could happen when creating more than 256 extensions in a single message. Fix a crash in BuildFile when passing in invalid descriptor proto. Parser security fix when operating with CodedInputStream. Warn against the use of AllowUnknownExtension. Migrated to C++11 for-range loops instead of index-based loops where possible. This fixes a lot of warnings when compiling with -Wsign-compare. Fix segment fault for proto3 optional Adds a CMake option to build libprotoc separately