Wikimedia Release Engineering Team/Essential work/2026-05-15
Essential Work
[edit]Weekly essential work update for 2026-W20
Shipped
[edit]- MediaWiki demo environment, Patch Demo, wikis are re-namable:
- Previously, each demo url was a random hash (e.g., https://cc157ef861.catalyst.wmcloud.org). Now, users can name their environments (e.g., mywiki-articleguidance-5914acf49f16.catalyst.wmcloud.org).
- Deploy tool updates: rollback, error checking, security audit.
- The MediaWiki deploy web app offers to rollback if error-rate checks or smoke tests fail. Previously, users had to initiate a new deployment to rollback to a previous state.
- MediaWiki's deploy tool has always checked the error rate on canary servers. Now it also watches for errors briefly following a full deployment.
- Responded to AI-generated security review – Added rate-limiting for 2fa attempts and better input validation. Overall, we were in good shape.
- Dev environment updates:
- Fundraising developer images now on latest Debian.
- Gerrit CI upgrade – Zuul, our CI backend for Gerrit, needs to be updated, but it's a big change. This week, we got the Kubernetes workers accepting jobs (thanks to a small upstream fix https://opendev.org/zuul/zuul/commit/b090253170ec201175a6ef7df7f5601f337a8282 )
Blockers
[edit]- N/A
Lessons Learned
[edit]- N/A
Community collab
[edit]- N/A
Other
[edit]Deployment of MediaWiki 1.47.0-wmf.2
Deprecation warnings and a problem with MediaHandler languages that was caught very early. Mostly calm.
- MediaWiki_1.47/wmf.2
- 267 Patches ▁▃█▅▁
- 0 Rollbacks ▁█▁▁▁
- 0 Days of delay ▄▄▄▄▄
- 5 Blockers ▁▃▁█▇