With Glibc 2.32 some of the enhancements include:
- Unicode 13.0 support.
- Support for Synopsys ARC HS cores .
- Paired with GCC 10, better warnings should be issued about possible buffer overflows and other out-of-bounds accesses.
- Glibc 2.32 on Linux adds pthread_attr_setsigmask_np / pthread_attr_getsigmask_np for setting the signal mask of a thread created via pthread_create.
- AArch64 now supports standard branch protection security hardening, including ARM Branch Target Identification (BTI) and pointer authentication usage as recent ARM architectural features.
- ldconfig defaults to the new format for ld.so.cache, something it's already been supporting for nearly two decades.
- Various security fixes along with dozens of bug fixes.
Sadly not making it for this release is the restartable sequences support . Additionally, the hardware capabilities discussion is also still ongoing.
More details on the GNU C Library 2.32 debut via the release announcement .