Confluence 2.5.6 is a recommended upgrade that resolves a number of security bugs and other issues you may have encountered in Confluence 2.5.5 or earlier.

As such this release is a recommended upgrade for all customers.

Confluence 2.5.6 can be downloaded from http://www.atlassian.com/software/confluence/ConfluenceDownloadCenter.jspa, and is a free upgrade for all customers who purchased their Confluence license or maintenance renewal after August 8th 2006.

Upgrading to Confluence 2.5.6

Upgrading Confluence should be fairly straightforward. You can find instructions here. We strongly recommend that you backup your confluence.home directory and database before upgrading!

Changes in 2.5.6

Here's a complete list of the bug fixes in Confluence 2.5.6: