You can download it from the FW/1 Releases page.
This has some minor functionality additions to clean up some RC (request context) access that was identified by a user. Given the compatibility changes being setup by Release 2.5, this was a good opportunity to deprecate direct access to variables.rc inside the framework (possibly inside buildURL(), setupView(), and setupResponse()).
Check the release notes for a link to the closed issues in this release.
The documentation wiki has been updated to match the latest functionality. The UserManager example has been updated to "best practice" for 2.5. The other examples will be updated before 2.5 goes "gold".