Snapshot gcc-12-20211010 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/12-20211010/
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 74ccca380cde5e79e082d39214b306a90ded0344

You'll find:

 gcc-12-20211010.tar.xz               Complete GCC

  SHA256=8020b83d443834a924f056d6758c3f6ab3327edd87e5d6bc1e2fe17ba931d9aa
  SHA1=bf5b5e59644480d1d0f3354158922a46ddbbe3e2

Diffs from 12-20211003 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.