In short: get the latest version from upstream, test, prepare a Debian patch against apparmor-profiles-extra, submit patch to the BTS or push a Git branch to collab-maint.
Find out more about upstream repositories.
Merge a profile from upstream
Merging a profile update from upstream into the apparmor-profiles-extra Debian package is fairly easy: it only requires basic Git usage skills.
Fork (https://salsa.debian.org/apparmor-team/apparmor-profiles-extra/forks/new) and follow the instructions to clone your brand new fork.
Go into the apparmor-profiles-extra folder and create a new working branch:
git checkout -b workingtitle
Get the latest version of profiles from upstream. Profiles live in the profiles sub-directory. Some helper scripts in debian/scripts/ can be helpful.
Test the updated profile.
Update the information about the profile you are updating, in debian/README.Debian.
Then, one could either push the branch:
git commit -a git push -u origin workingtitle
… and either create a merge request or submit a patch to the Debian Bug Tracking System against the apparmor-profiles-extra package.
Inform the team
When creating a new profile, we encourage you to report a bug with the usertag merge-from-upstream to the Debian BTS in order to inform the Debian AppArmor Packaging Team.
Equally, do not hesitate to provide a patch for the bug. You should then also tag the bug with the tag patch.
Find out more about usertags on the AppArmor/Reportbug page.