# 2021

> To learn what has changed in High Availability Add-on this year, check out the release notes.

To learn what has changed in High Availability Add-on this year, check out the release notes.

* [November 2021](https://docs.uipath.com/high-availability-add-on/other/latest/release-notes/november-2021#november-2021)
* [February 2021](https://docs.uipath.com/high-availability-add-on/other/latest/release-notes/february-2021#february-2021)