So, what's changed in this release?
Moved Advanced Frontend Editing to TER
The Advanced Frontend Editing extension that was added to the TYPO3 Core in the first beta release has now been removed from the Core and will be published in the TYPO3 Extension Repository (TER) as "feeditadvanced" in conjunction with the final release of TYPO3 4.3. The new frontend editing functionality has been developed as an extension all along and the required TYPO3 Core changes have been in place prior to the first beta release. Moving the extension out of the Core and to the TER offers more flexibility as bugfixes can be released independent of patch level releases for the TYPO3 Core. This also allows new features to be added during the TYPO3 4.3 lifetime. The extension will still be maintained by the TYPO3 Core Team and any interested developers are welcome to join the project at Forge.
More than 50 issues fixed
In addition to the previously mentioned changes, more than 50 issues have been fixed in the last week, several of which were related to PHP 5.3 compatibility. For a full list of changes, see the ChangeLog.
Next steps to climb the TYPO3 4.3 hill
Please test this Release Candidate as much as possible, especially the new features from the previous alpha and beta releases! If you're using one of the new features in a project already and discover bugs, please report them immediately to bugs.typo3.org!
If you're upgrading from a previous TYPO3 version, please be sure to execute the database analyzer and update wizard in the TYPO3 Install Tool.
We will release another Release Candidate in one week and continue that process until we feel comfortable that the code base is ready for the final release. This means that you can expect the final version to be ready by the end of November 2009.
For a detailed overview of the progress of TYPO3 4.3, have a look at the TYPO3 v4 Development Page, the bugtracker, and the ChangeLog. The list of pending documentation in the wiki describes the new properties and tells how they can be used.
You can download the packages at typo3.org/download/packages/.