Updating GitLab Mattermost to v1.3 for GitLab 8.3 release
Opening a ticket for the update of GitLab Mattermost to v1.3.0 in GitLab omnibus.
- Final Mattermost v1.3.0 release is now available from http://www.mattermost.org/download/
Full release notes can be found here
Upgrade has been significantly simplified in Mattermost v1.3.0, just replace the Mattermost v1.2.1 file in GitLab omnibus 8.2 with the v1.3.0 version and everything should work.