Snapshot gcc-12-20210919 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/12-20210919/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.

This snapshot has been generated from the GCC 12 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch master revision 32731fa5b0abf092029b8e2be64319b978bda514

You'll find:

 gcc-12-20210919.tar.xz               Complete GCC

  SHA256=3f046195d02225d4f072b3a50efca4a791c00f369bfb5c6cf68d82bcffeba988
  SHA1=c6ce140785d181703d81d3e6b4dff4a7e095ddd3

Diffs from 12-20210912 are available in the diffs/ subdirectory.

When a particular snapshot is ready for public consumption the LATEST-12
link is updated and a message is sent to the gcc list.  Please do not use
a snapshot before it has been announced that way.