Below are some important notes on upgrading to Confluence 4.2.13. For details of the fixes in this release, please read the release notes.

Upgrade Procedure
If you are already running a version of Confluence, please follow these instructions to upgrade to the latest version:
- Before you upgrade, we strongly recommend that you back up your Confluence Home directory and database.
Read more about finding your Home directory. - If your version of Confluence is earlier than 3.5.x, then you should upgrade to Confluence 3.5.x before upgrading to Confluence 4.2.x.
- If your version of Confluence is earlier than 4.2, read the release notes and upgrade guides for all releases between your version and the latest version.
In particular: - Download the latest version of Confluence.
- Follow the instructions in the Upgrade Guide.