Snapshot gcc-9-20210610 is now available on
  https://gcc.gnu.org/pub/gcc/snapshots/9-20210610/
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 3cf5b2930c22497617a535802b0c55248d688069

You'll find:

 gcc-9-20210610.tar.xz                Complete GCC

  SHA256=4b629ef51b17ba6ebb6ee6320f8feef3dfc22c161313a38a007ac9d6a4af8475
  SHA1=2a9bf205e7743e66fef96e677eebbef85cc1729a

Diffs from 9-20210603 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.