- [Action Required](#action-required-6)
    - [Other notable changes](#other-notable-changes-18)
- [v1.8.0-alpha.1](#v180-alpha1)
  - [Downloads for v1.8.0-alpha.1](#downloads-for-v180-alpha1)
    - [Client Binaries](#client-binaries-20)
    - [Server Binaries](#server-binaries-20)
    - [Node Binaries](#node-binaries-20)
  - [Changelog since v1.7.0-alpha.4](#changelog-since-v170-alpha4)
    - [Action Required](#action-required-7)

    - [Client Binaries](#client-binaries-6)
    - [Server Binaries](#server-binaries-6)
    - [Node Binaries](#node-binaries-6)
  - [Changelog since v1.12.3](#changelog-since-v1123)
    - [Action Required](#action-required)
    - [Other notable changes](#other-notable-changes-6)
- [v1.12.3](#v1123)
  - [Downloads for v1.12.3](#downloads-for-v1123)
    - [Client Binaries](#client-binaries-7)

    - [Action Required](#action-required-3)
    - [Other notable changes](#other-notable-changes-7)
- [v1.17.0-alpha.1](#v1170-alpha1)
  - [Downloads for v1.17.0-alpha.1](#downloads-for-v1170-alpha1)
    - [Client Binaries](#client-binaries-24)
    - [Server Binaries](#server-binaries-24)
    - [Node Binaries](#node-binaries-24)
  - [Changelog since v1.16.0](#changelog-since-v1160)
    - [Action Required](#action-required-4)

    - [Client Binaries](#client-binaries-26)
    - [Server Binaries](#server-binaries-26)
    - [Node Binaries](#node-binaries-26)
  - [Changelog since v1.17.0](#changelog-since-v1170-1)
    - [Action Required](#action-required)
    - [Other notable changes](#other-notable-changes-1)

<!-- END MUNGE: GENERATED_TOC -->

# v1.18.20


## Downloads for v1.18.20

### Source Code

## Changelog since v1.27.0

## Urgent Upgrade Notes 

### (No, really, you MUST read this before you upgrade)

- Action required for the custom scheduler plugin developers. 
  Here's the breaking change in `EnqueueExtension` in the scheduling framework. 

*   Added extra_sans config option to kubeapi-load-balancer charm. This allows the user to specify extra SAN entries on the certificate generated for...

    - [Action Required](#action-required)
    - [Other notable changes](#other-notable-changes-6)
- [v1.10.6](#v1106)
  - [Downloads for v1.10.6](#downloads-for-v1106)
    - [Client Binaries](#client-binaries-7)
    - [Server Binaries](#server-binaries-7)
    - [Node Binaries](#node-binaries-7)
  - [Changelog since v1.10.5](#changelog-since-v1105)
    - [Action Required](#action-required-1)

* kubeadm now has a join timeout that can be controlled via the `discoveryTimeout` config option. This option is set to 5 minutes by default. ([#60983](https://github.com/kubernetes/kubernetes/pull/60983), [@rosti](https://github.com/rosti))

    - [Action Required](#action-required-4)
    - [Other notable changes](#other-notable-changes-20)
- [v1.7.0-alpha.3](#v170-alpha3)
  - [Downloads for v1.7.0-alpha.3](#downloads-for-v170-alpha3)
    - [Client Binaries](#client-binaries-21)
    - [Server Binaries](#server-binaries-21)
    - [Node Binaries](#node-binaries-21)
  - [Changelog since v1.7.0-alpha.2](#changelog-since-v170-alpha2)
    - [Action Required](#action-required-5)

- Added new option to the InterPodAffinity scheduler plugin to ignore existing pods` preferred inter-pod affinities if the incoming pod has no preferred inter-pod affinities. This option can be used as an optimization for higher scheduling throughput (at the cost of an occasional pod being scheduled non-optimally/violating existing pods' preferred inter-pod affinities). To enable this scheduler option, set the InterPodAffinity scheduler plugin arg "ignor...