[rel] Release v2.2.0

[daniel-jettka]

based on Edirom-Online Release Workflow

Release preparation timeline

• create and plan next milestone (assign issues, set priorities, identify and name topic/s): https://github.com/Edirom/Edirom-Online/milestone/31
• set dates for test phase: 10.12.2025 - 17.12.2025
• set date for release: 18.12.2025
• send announcement about dates to community

Preparations on zenodo.org

• go to previous version and click "New version"
• reserve a DOI -> insert here
• update version and other metadata in publication form
• upload a placeholder file
• save draft -> link here

Checkout develop branch: git checkout develop

• have a look into release milestone and manage last issues and PRs
• check third party dependencies
  • Verovio
  • jQuery
  • TEI stylesheets
  • Euryanthe

Checkout new release branch: git checkout -b release/vX.Y.Z develop

• update CITATION.cff (date, contributors, version, DOI)
• bump version number everywhere (find/replace in code), e.g. in build.xml
• if applicable, update version number of backend/frontend in docker-compose.yml
• commit version release branch
• build .xar and test it

Checkout main branch: git checkout main

• git merge --no-ff release/vX.Y.Z (release branch into main)
• (potentially) resolve merge conflicts and git continue merge
• git tag returns a list of all tags
• git tag -a vX.Y.Z -m "vX.Y.Z"
• (potentially) git tag for review
• git push --follow-tags

Release on github.com

• Go to tag vX.Y.Z and click "Release from Tag"
• auto-generate the release description
• upload the tested Edirom-Online-X.Y.Z.xar (asset)
• publish the release on GitHub - link GitHub release

Checkout develop branch: git checkout develop

• git merge --no-ff release/vX.Y.Z (release branch into develop)

Publication on zenodo.org

• edit publication draft
• remove placeholder file and upload files copied from GitHub release
• double-check metadata
• publish on Zenodo (with updated files) -> link publication DOI

Clean-up

• delete branch release/vX.Y.Z
• announce new version to Edirom-Online community

Plan next release

• create new release issue