Version: 2021.1
Upgrading to Unity 2018 LTS
Upgrading to Unity 2017.3

Legacy Upgrade Guides

Visit the pages below for information about upgrading to legacy versions which are no longer the current full release or beta release version of Unity.

Note: The documentation for these versions is frozen - we do not correct, update or republish it.

The 2018.x and 2019.x Tech release guides have been compiled into the LTS guides. You can still view the version specific guides in their own section of the documentation such as the 2019.1 guide here.

Upgrading to Unity 2018 LTS
Upgrading to Unity 2017.3