Due to the fast-moving pace of Kubernetes releases and the need for Tanzu Kubernetes Grid to support the most recent Kubernetes versions, VMware applies different support policies for TKG versions, TKG features, and Kubernetes versions.
From TKG 2.2 onwards the lifecycle of VMware support for TKG versions is as follows.
Minor versions: VMware supports TKG following the N-2 Lifecycle Policy, which applies to the latest and previous two minor versions of TKG. With the release of TKG v2.4.0, TKG v2.1.x is no longer supported, after a minimum period of 12 months has elapsed since the release of v2.1.0. See the VMware Product Lifecycle Matrix for more information. To allow you time to upgrade, documentation for the most recent unsupported version of TKG remains online until support for the next oldest version ends. PDF documentation for older unsupported releases of Tanzu Kubernetes Grid is available for download in a ZIP archive format from the TKG Docs home page.
Patch versions: VMware does not support all previous TKG patch versions. After VMware releases a new patch version of TKG, it retains support for the older patch version for two months. This gives customers a 2-month window to upgrade to new TKG patch versions.
For more information about the support for a specific TKG release, see the Release Notes for the corresponding minor TKG version. For example, for TKG 2.4, see the Tanzu Kubernetes Grid v2.4 Release Notes.
The following state definitions describe Tanzu Kubernetes Grid features, ordered by typical lifecycle. The TKG documentation covers features in the Technical Preview, Stable, and Deprecated states:
TKG versions support different Kubernetes versions based on policies described in the Release Notes for each minor TKG version: