--- title: TYPO3 4.5.1 released url: "https://news.typo3.com/article/typo3-451-released" description: The TYPO3 Core Team announces versions 4.5.1 of the TYPO3 Enterprise Content Management System. image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg" date: 2026-06-11 modified: 2026-06-11 categories: - "Developer & Technology" --- # TYPO3 4.5.1 released - [Developer & Technology](https://news.typo3.com/article/category/developer-technology) TYPO3 4.5.1 released ==================== 23 February 2011 The TYPO3 Core Team announces versions 4.5.1 of the TYPO3 Enterprise Content Management System. - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/f3fedb51aa8349782fd955e4e7f52e4a.jpeg)[Ernesto Baschny](https://news.typo3.com/article/author/ernesto-baschny) We are announcing the release of the following TYPO3 updates: - TYPO3 4.5.1 & Introduction Package 4.5.1 This is a maintenance release and contain only bugfixes. Users of 4.5.0 are strongly advised to upgrade. For details about the release, on how to upgrade and what bugs were fixed with this release, please visit the following website: **Download:** **MD5 checksums:** ``` b91e93d98e4f7bad0636788689eb179c  dummy-4.5.1.tar.gzcb5e7afbd349d5d2b9a65b14ec577c68  dummy-4.5.1.zip6b7012da6953010673d9990d9bf0ca9e  typo3_src-4.5.1.tar.gz884d832ae93023b9506df7eb67f91f05  typo3_src-4.5.1.zip4b1cfd122125029827e99ec7ca3295cc  typo3_src+dummy-4.5.1.zip28027c7a6bb707ff006000b5912ab089  introductionpackage-4.5.1.tar.gz632782f0d38298980cadb9f7445cbf3f  introductionpackage-4.5.1.zip ``` ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/f8314224d949cd3ad89311674f3d33c7.jpeg) About the Author [Ernesto Baschny](https://news.typo3.com/article/author/ernesto-baschny) [More posts by this author](https://news.typo3.com/article/author/ernesto-baschny)