TYPO3 8.4.1

Release Notes

Version 8.4.1

This version is not supported anymore.

The TYPO3 CMS community supported from 2017-04-04 until 2020-03-31. Extended security & compatibility support (ELTS) expired on 2024-03-31.

Please consider updating to a newer version.

Release Notes for TYPO3 CMS 8.4.1

This document contains information about TYPO3 CMS 8.4.1 which was released on November 22nd, 2016.


This release is a combined bug fix and security release.


Find more details in the security bulletins:



MD5 checksums

18b59e9a0c4a56a4b61fb887477718c7  typo3_src-8.4.1.tar.gz
a1ac7768e3f9972726ed9f7d6c97fc47  typo3_src-8.4.1.zip

SHA256 checksums

85ea054e9d3046d153607d0befa1404ae3b54998c208ae59262dade380aa8763  typo3_src-8.4.1.tar.gz
53a4ccc62ec322efbae39d2870532fcde9857d8d75acd62386bd96fb93ac6022  typo3_src-8.4.1.zip


The usual upgrading procedure applies. No database updates are necessary.\ It might be required to clear all caches; the “important actions” section in the TYPO3 Install Tool offers the accordant possibility to do so.


Here is a list of what was fixed since [8.4.0](TYPO3_CMS_8.4.0 "wikilink"):

60da75a [RELEASE] Release of TYPO3 8.4.1
d3f5622 [SECURITY] Prevent unnecessary unserialize in SuggestWizard
803d928 [SECURITY] Disallow invalid encoding in GeneralUtility::validPathStr
06ee1e4 [BUGFIX] Use page uid instead of alias for cHash calculation
62ac289 [BUGFIX] Bind the cHash to the id of the &quot;real&quot; page

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/8.4.1/tar.gz
wget --content-disposition https://get.typo3.org/8.4.1/tar.gz.sig
gpg --verify typo3_src-8.4.1.tar.gz.sig typo3_src-8.4.1.tar.gz