The GCC developers are pleased to announce the release of GCC 13.1.
This release is a major release, containing new features (as well as many other improvements) relative to GCC 12.x.
The C frontend got support for several C23 features, the C++ frontend
for C++23 features. The C++ standard library experimental support for
C++20 and C++23 was enhanced. For the C family of languages you can now
use -fstrict-flex-arrays[=level] to control the behavior for the various
legacy forms of specifying flexible array members.