On Saturday, May 9 at 16:00 UTC Gerrit will be unavailable for about 4 hours while we upgrade to the latest release of Gerrit: version 2.10. We are currently running Gerrit 2.8 so this is an upgrade across two major releases of Gerrit. The release notes for both versions are here: https://gerrit-documentation.storage.googleapis.com/ReleaseNotes/ReleaseNotes-2.10.html https://gerrit-documentation.storage.googleapis.com/ReleaseNotes/ReleaseNotes-2.9.html If you have any questions about the upgrade, please feel free to reply here or contact us in #openstack-infra on Freenode. -Jim