Version 6.4 of the GNU Compiler Collection (GCC) is now available as the latest bug-fix release for those relying on GCC6 that haven't yet migrated to GCC7.

GCC 6.4 simply incorporates new bug/regression fixes to the GCC 6 compiler code-base and is just a point release while new feature development is focused on GCC 8 for release next year.

Those wanting to grab GCC 6.4 and build from source can do so via GNU.org.