encryption 1.6.0 release

[jnweiger]

This is the server app release template, please copy the part below in a new ticket.
For instructions around app releases, see https://confluence.owncloud.com/display/OG/Releasing+Apps

Reason

• Release needed for feat: drop setup of user based encryption #389
• core 10.13 bumps Symfony from 4 to 5 - encryption unit tests adjusted in PR [tests-only] [full-ci] Adjust unit tests for Symfony 5 #397 but it seems that no real app code changes are needed.

Product approval

• Verify transifex commits are in master: If a toplevel folder l10n exists, then git log should show '[tx] updated from transifex` ...
• Ping pmaier to check info.xml description and screenshot
• Get approval on translations from pmaier - send the date of the last tx commit from drone to Patrick

QA

• Create QA Milestone and set the description to $version
• Move tickets from milestone development to qa (testplan and tickets mentioned in release ticket)
• Create release branch with the format "release-$version"
• Create "1.6.0 Testplan" --> [QA] 1.6.0 Testplan #391 (QA templates or Enterprise)
• copy new/reopened issues from the previous release ticket as 'Issues to review' below.
• check if Non-normal Release Process applies, and adapt this checklist.

Documentation

• Changes in the docs needed? If so create issue in https://github.com/owncloud/docs-server/issues/new .
  -> Update encryption_configuration.adoc docs-server#912
  -> Encryption App v1.6.0 docs-server#1006

Marketing

• Update https://confluence.owncloud.com/display/PROD/Upcoming+Releases

Build

All actions to be done on the release branch from here:

• Bump version in appinfo/info.xml (no version suffix)
• Check php version dependency and minimum ownCloud version dependency in appinfo/info.xml
• Bump "sonar.projectVersion=" in sonar-project.properties (no version suffix)
• Change CHANGELOG.md 'Unreleased' to '$version' (today's date)

Beta/RC

• git tag -s v${version}-rc.1 on release branch (see https://confluence.owncloud.com/display/EN/Product+Owners+List)
• Build and sign RC tarball from github tag v${version}-rc.1 (see handbook for how to build)
• Upload as Github release using changelog entries
• Test and document in testplan + manual explorative testing:
  • If this is an enterprise app: Enabling the app must start the grace period
  • Add section "Changlog Testing" using github releases text or CHANGELOG.md from release branch
  • Do changelog tests
  • Do regression tests
  • PHP 7.3 compatibility (HCLOUD_SERVER_IMAGE=debian-10 oc10.sh ...)
  • => Final "Go" from QA (set 'QA-ready' label) => else do another RC after fixing issues in the "release-$version" branch

Final

• Check that no documentation issues are pending
• Rename last RC tarball to final
• Create github tag for final v${version} on release branch
• Upload as Github release using changelog entries

No Publishing

Post-release

• Add a new 'Unreleased' section in CHANGELOG.md (and also update links at the bottom!)
• Create PR to merge changes back to the master branch with description "Closes #XYZ" with the release ticket number
• Rename QA milestone to $version and close the milestone
• Update https://confluence.owncloud.com/display/PROD/Upcoming+Releases
• Ensure release template is up to date
• Ensure the testplan template (community or enterprise) is up to date
• Close the testplan issue