I recently noticed that my GitLab installed on Raspberry Pi (running Jessy) stopped updating and stick to version 8.7.9, however the latest one as of today is 8.16.4.
Normally apt-get updateand apt-get upgradeshould do the trick. But it turned out there was a change in the build system and newer packages don’t get uploaded into ‘raspbian’ version of repository. For details - take a look on issue #1303. Although quick patch is following and short:
Edit configuration file located at: /etc/apt/sources.list.d/gitlab_raspberry-pi2.list
And redirect the repository path from ‘raspbian/’ to ‘debian/’.