Things to check:

Release message template:

To:     mercurial <mercurial@selenic.com>
Bcc:    lwn@lwn.net
Subject:        Mercurial 1.x released!

Full details here:

http://mercurial.selenic.com/wiki/WhatsNew

Available for download at:

http://mercurial.selenic.com/release/mercurial-1.x.tar.gz