TYPO3 7.6.51 ELTS

Release Notes

Version 7.6.51 ELTS

This version is not supported anymore.

The TYPO3 CMS community supported from 2015-11-10 until 2018-11-27. Extended security & compatibility support (ELTS) expired on 2022-11-30.

Please consider updating to a newer version.

Release Notes for TYPO3 CMS 7.6.51

This document contains information about TYPO3 CMS 7.6.51 which was released on 16.03.2021.

Get TYPO3 7.6.51 now

Checksums of TYPO3 7.6.51


25c9d2382f521947fa722f5c3d2a0e027e7ff8ee183f9c426ffa66005f8bf386 typo3_src-7.6.51.tar.gz
14aad0025d82360915281c8a989e69f06bd8c283025ddf0bdf9f1a5f734717fb typo3_src-7.6.51.zip


d285706cabda55b9697520937b0f622810844017 typo3_src-7.6.51.tar.gz
191f8bf2a23ce00d77e07e6f7a22caa407105260 typo3_src-7.6.51.zip


c95836937f12e68311775a824fe00eac typo3_src-7.6.51.tar.gz
33bd90a0533ac03d1c71a704f7861919 typo3_src-7.6.51.zip

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/7.6.51/tar.gz
wget --content-disposition https://get.typo3.org/7.6.51/tar.gz.sig
gpg --verify typo3_src-7.6.51.tar.gz.sig typo3_src-7.6.51.tar.gz


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.


  • 2021-03-16 57fb22df8f [RELEASE] Release of TYPO3 7.6.51 (thanks to Andreas Fernandez)
  • 2021-03-16 1330ee61c1 [SECURITY] Mitigate XSS in PreviewRenderer for menus (thanks to Oliver Bartsch)
  • 2021-03-16 fe3fc460b8 [SECURITY] Avoid storing plain session identifier in $USER->uc (thanks to Oliver Hader)
  • 2021-03-16 5c0b375e65 [SECURITY] Prevent urls starting with // to be used for redirects (thanks to Torben Hansen)
  • 2021-03-15 6218209749 [BUGFIX] Workaround Fluid issues with PCRE without JIT available (thanks to Andreas Fernandez)
  • 2021-01-26 16a4651c59 [BUGFIX] Loosen constraint of typo3/cms-composer-installers (thanks to Andreas Fernandez)
  • 2021-01-25 a017f29839 [TASK] Harden client-side SecurityUtility.encodeHtml (thanks to Oliver Hader)
  • 2020-12-18 efd8ae8250 [TASK] Set TYPO3 version to 7.6.51-dev (thanks to Andreas Fernandez)