Snapshot gcc-9-20210916 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/9-20210916/
and on various mirrors, see http://gcc.gnu.org/mirrors.html for details.

This snapshot has been generated from the GCC 9 git branch
with the following options: git://gcc.gnu.org/git/gcc.git branch releases/gcc-9 revision 22c708a2b4fb5da51a727d6c4a1faeff8470a2fe

You'll find:

 gcc-9-20210916.tar.xz                Complete GCC

  SHA256=2d90a909ef13d79882b502ef631cc6096cbc80a29630ed5aed551ab4a62af926
  SHA1=28284e59ed1c26d823af0c632b55e5fd00eaa516

Diffs from 9-20210909 are available in the diffs/ subdirectory.

When a particular snapshot is ready for public consumption the LATEST-9
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.