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Merge pull request #4872 from tpepper/devel_guide 

release docs: update 9 months to 1 year patch support
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Kubernetes Prow Robot 2020-06-22 08:52:40 -07:00 committed by GitHub
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19
contributors/devel/sig-release/cherry-picks.md
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@ -166,13 +166,20 @@ cherry pick.
## Cherry Picks for Unsupported Releases
The release team only supports & patches `n-3` releases (`n` being the latest
release of Kubernetes). In January of 2019 the community discovered a
regression, that was introduced in a post-release patch, but was currently no
longer supported.
The community supports & patches releases for approximately 1 year
for releases 1.19 and newer. For releases 1.18 and older the patch
support extended for approximately 9 months, which was derived from
keeping `n-3` releases (`n` being the latest -release of Kubernetes)
in support and a quarterly release cycle.
As discussed in a SIG Release meeting on 2019-01-15, a fix was backported to
the non supported version.
The community makes no guarantees, but in the event of a high
severity issue with a patch that is backportable and can be proved
with CI signal, this extra support may occasionally be given.
For example, in January of 2019 the community discovered a regression, that was
introduced in a post-release patch, but was currently no longer
supported. As discussed in a SIG Release meeting on 2019-01-15, a
fix was backported to the non supported version.
Reference PR: [#72860](https://github.com/kubernetes/kubernetes/pull/72860)

3
contributors/devel/sig-release/release.md
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@ -119,6 +119,9 @@ The general labeling process should be consistent across artifact types.
Created at the time of the `vX.Y-rc.0` release and maintained after the
release for approximately 12 months with `vX.Y.Z` patch releases.
Note: releases 1.19 and newer receive 1 year of patch release support, and
releases 1.18 and earlier received 9 months of patch release support.
## The Release Cycle
![Image of one Kubernetes release cycle](release-cycle.png)