GNU C Library 2.39 released

https://lwn.net/ml/libc-alpha/38790850.J2Yia2DhmK@pinacolada/

of the GNU C Library has been released.  Changes include integration with
the https://lwn.net/Articles/926649/
, a couple of
new posix_spawn() variants for working with control groups, <a href="https://lwn.net/Articles/943022/" rel="nofollow">pidfd_spawn() and
pidfd_spawnp()</a>, the C2X stdbit.h header, the removal
of the libcrypt library, and more.  See https://sourceware.org/glibc/wiki/Release/2.39

for details.

https://lwn.net/Articles/960357/