Operator-facing upgrade notes for the v0.4 series, newest first. See the Release Notes index for how to read these pages.
Changes that have merged to main but are not yet in a tagged release are on
the Unreleased page.
Per-version upgrade notes begin with v0.4.26. For earlier versions the only record is the auto-generated pull request list on the GitHub releases page.
We have deliberately not reconstructed per-version notes for those releases: inferring operator impact from pull request titles after the fact produces confident-sounding instructions nobody has verified. The operator-affecting changes from before v0.4.26 that are documented have their own guides:
- Gateway API Migration Guide — the move from ingress-nginx to Envoy Gateway. Required if your deployment still runs ingress-nginx.
- MariaDB Operator Upgrade Runbook — upgrading the MariaDB operator, including backup and restore.