Approval from the leads of each component is before cutting a stable release.
Here an example mail:
To: Yehuda Sadeh <firstname.lastname@example.org>
CC: Ceph Development <email@example.com>
Subject: Firefly v0.80.10 backports (rgw)
A few issues related to rgw were backported to firefly. They passed the rgw suite. Do you think it is ready for QE to start their own round of testing ?
-- Loïc Dachary, Artisan Logiciel Libre
- Link the mail conversation archive with each lead from the issue tracking the progress of a given release, to make it easy to verify their approval later on. See hammer v0.94.2 as an example.