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.

News

<https://typo3.org/news/article/releasing-typo3-v84/&gt;

Download

<https://typo3.org/download/&gt;

MD5 checksums

38695fe2d2f70c9ba4c975ecb4fc1fb2  typo3_src-8.4.0.tar.gz
ccb5b6caef62c42ec1d6291beabdf7b2  typo3_src-8.4.0.zip

SHA256 checksums

bef43bced7dcd08ea279224d659bdfe33d12d9a77eb121b6cef66b05062fb5cc  typo3_src-8.4.0.tar.gz
dc0f519d66bc09e54cda05d02056bf083402be9433ab8b848efc7077a433654d  typo3_src-8.4.0.zip

Upgrading

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: <https://github.com/helhum/realurl&gt;

The usual upgrading procedure applies as well.

Changes

• 8.4 ChangeLog
  • Features
  • Important Changes
  • Breaking Changes
  • Deprecation Changes

Package Signatures

TYPO3 Release Packages (the downloadable tarballs and zip files) as well as Git tags are signed using PGP signatures during the automated release process. Besides that, MD5 and SHA2-256 hashes are being generated for these files. Find more details on verifying signatures and hashes in the infrastructure guide.

Download GPG signed release README.md file

Example of verifying integrity of tar.gz package of current release:

wget --content-disposition https://get.typo3.org/8.4.0/tar.gz
wget --content-disposition https://get.typo3.org/8.4.0/tar.gz.sig
gpg --verify typo3_src-8.4.0.tar.gz.sig typo3_src-8.4.0.tar.gz