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# Release Process
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The Kubespray Project is released on an as-needed basis. The process is as follows:
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1. An issue is proposing a new release with a changelog since the last release
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2. At least one of the [approvers ](OWNERS_ALIASES ) must approve this release
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3. The `kube_version_min_required` variable is set to `n-1`
4. An approver creates [new release in GitHub ](https://github.com/kubernetes-sigs/kubespray/releases/new ) using a version and tag name like `vX.Y.Z` and attaching the release notes
5. An approver creates a release branch in the form `release-X.Y`
6. The corresponding version of [quay.io/kubespray/kubespray:vX.Y.Z ](https://quay.io/repository/kubespray/kubespray ) docker image is built and tagged
7. The `KUBESPRAY_VERSION` variable is updated in `.gitlab-ci.yml`
8. The release issue is closed
9. An announcement email is sent to `kubernetes-dev@googlegroups.com` with the subject `[ANNOUNCE] Kubespray $VERSION is released`
10. The topic of the #kubespray channel is updated with `vX.Y.Z is released! | ...`
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## Major/minor releases and milestones
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* For major releases (vX.Y) Kubespray maintains one branch (`release-X.Y`). Minor releases (vX.Y.Z) are available only as tags.
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* Security patches and bugs might be backported.
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* Fixes for major releases (vX.Y) and minor releases (vX.Y.Z) are delivered
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via maintenance releases (vX.Y.Z) and assigned to the corresponding open
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[GitHub milestone ](https://github.com/kubernetes-sigs/kubespray/milestones ).
That milestone remains open for the major/minor releases support lifetime,
which ends once the milestone is closed. Then only a next major or minor release
can be done.
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* Kubespray major and minor releases are bound to the given `kube_version` major/minor
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version numbers and other components' arbitrary versions, like etcd or network plugins.
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Older or newer component versions are not supported and not tested for the given
release (even if included in the checksum variables, like `kubeadm_checksums` ).
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* There is no unstable releases and no APIs, thus Kubespray doesn't follow
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[semver ](https://semver.org/ ). Every version describes only a stable release.
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Breaking changes, if any introduced by changed defaults or non-contrib ansible roles'
playbooks, shall be described in the release notes. Other breaking changes, if any in
the contributed addons or bound versions of Kubernetes and other components, are
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considered out of Kubespray scope and are up to the components' teams to deal with and
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document.
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* Minor releases can change components' versions, but not the major `kube_version` .
Greater `kube_version` requires a new major or minor release. For example, if Kubespray v2.0.0
is bound to `kube_version: 1.4.x` , `calico_version: 0.22.0` , `etcd_version: v3.0.6` ,
then Kubespray v2.1.0 may be bound to only minor changes to `kube_version` , like v1.5.1
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and *any* changes to other components, like etcd v4, or calico 1.2.3.
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And Kubespray v3.x.x shall be bound to `kube_version: 2.x.x` respectively.
