2015-12-17 17:20:51 +03:00
|
|
|
# Docker patch (bugfix) release process
|
|
|
|
|
|
|
|
|
|
Patch releases (the 'Z' in vX.Y.Z) are intended to fix major issues in a
|
|
|
|
|
release. Docker open source projects follow these procedures when creating a
|
|
|
|
|
patch release;
|
|
|
|
|
|
|
|
|
|
After each release (both "major" (vX.Y.0) and "patch" releases (vX.Y.Z)), a
|
|
|
|
|
patch release milestone (vX.Y.Z + 1) is created.
|
|
|
|
|
|
|
|
|
|
The creation of a patch release milestone is no obligation to actually
|
|
|
|
|
*create* a patch release. The purpose of these milestones is to collect
|
|
|
|
|
issues and pull requests that can *justify* a patch release;
|
|
|
|
|
|
|
|
|
|
- Any maintainer is allowed to add issues and PR's to the milestone, when
|
|
|
|
|
doing so, preferably leave a comment on the issue or PR explaining *why*
|
|
|
|
|
you think it should be considered for inclusion in a patch release.
|
|
|
|
|
- Issues introduced in version vX.Y.0 get added to milestone X.Y.Z+1
|
|
|
|
|
- Only *regressions* should be added. Issues *discovered* in version vX.Y.0,
|
|
|
|
|
but already present in version vX.Y-1.Z should not be added, unless
|
|
|
|
|
critical.
|
|
|
|
|
- Patch releases can *only* contain bug-fixes. New features should
|
|
|
|
|
*never* be added to a patch release.
|
|
|
|
|
|
|
|
|
|
The release captain of the "major" (X.Y.0) release, is also responsible for
|
|
|
|
|
patch releases. The release captain, together with another maintainer, will
|
|
|
|
|
review issues and PRs on the milestone, and assigns `priority/`labels. These
|
|
|
|
|
review sessions take place on a weekly basis, more frequent if needed:
|
|
|
|
|
|
|
|
|
|
- A P0 priority is assigned to critical issues. A maintainer *must* be
|
|
|
|
|
assigned to these issues. Maintainers should strive to fix a P0 within a week.
|
|
|
|
|
- A P1 priority is assigned to major issues, but not critical. A maintainer
|
|
|
|
|
*must* be assigned to these issues.
|
|
|
|
|
- P2 and P3 priorities are assigned to other issues. A maintainer can be
|
|
|
|
|
assigned.
|
|
|
|
|
- Non-critical issues and PR's can be removed from the milestone. Minor
|
|
|
|
|
changes, such as typo-fixes or omissions in the documentation can be
|
|
|
|
|
considered for inclusion in a patch release.
|
|
|
|
|
|
|
|
|
|
## Deciding if a patch release should be done
|
|
|
|
|
|
|
|
|
|
- Only a P0 can justify to proceed with the patch release.
|
|
|
|
|
- P1, P2, and P3 issues/PR's should not influence the decision, and
|
|
|
|
|
should be moved to the X.Y.Z+1 milestone, or removed from the
|
|
|
|
|
milestone.
|
|
|
|
|
|
|
|
|
|
> **Note**: If the next "major" release is imminent, the release captain
|
|
|
|
|
> can decide to cancel a patch release, and include the patches in the
|
|
|
|
|
> upcoming major release.
|
|
|
|
|
|
|
|
|
|
> **Note**: Security releases are also "patch releases", but follow
|
|
|
|
|
> a different procedure. Security releases are developed in a private
|
|
|
|
|
> repository, released and tested under embargo before they become
|
|
|
|
|
> publicly available.
|
2016-03-09 03:59:15 +03:00
|
|
|
|
|
|
|
|
## Deciding on the content of a patch release
|
|
|
|
|
|
|
|
|
|
When the criteria for moving forward with a patch release are met, the release
|
|
|
|
|
manager will decide on the exact content of the release.
|
|
|
|
|
|
|
|
|
|
- Fixes to all P0 issues *must* be included in the release.
|
|
|
|
|
- Fixes to *some* P1, P2, and P3 issues *may* be included as part of the patch
|
|
|
|
|
release depending on the severity of the issue and the risk associated with
|
|
|
|
|
the patch.
|
|
|
|
|
|
|
|
|
|
Any code delivered as part of a patch release should make life easier for a
|
|
|
|
|
significant amount of users with zero chance of degrading anybody's experience.
|
|
|
|
|
A good rule of thumb for that is to limit cherry-picking to small patches, which
|
|
|
|
|
fix well-understood issues, and which come with verifiable tests.
|
