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TYPO3 CMS 8.4.0

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Release Notes for TYPO3 CMS 8.4.0

This document contains information about TYPO3 CMS 8.4.0 which was released on October 18th, 2016.



MD5 checksums

38695fe2d2f70c9ba4c975ecb4fc1fb2  typo3_src-8.4.0.tar.gz

SHA256 checksums

bef43bced7dcd08ea279224d659bdfe33d12d9a77eb121b6cef66b05062fb5cc  typo3_src-8.4.0.tar.gz


  1. Before you update any instance to 8.4, have a backup in place.
  2. Now download the new core and present it to your instance (by symlink or copied files)
  3. Use the install tool to run the upgrade wizards
  4. Use the install tool to clear each and every cache you can find, even opcode.
  5. When you encounter compatibility problems with your extensions, look for the git versions around in order to find one already upgraded. For example RealURL can be found here, until it gets released to TER:

The usual upgrading procedure applies as well.


Past Release Notes

If you have skipped one or more versions while upgrading to this version, please make sure to read the ReleaseNotes of these versions as well.