--- title: TYPO3 4.3 Alpha 3 url: "https://news.typo3.com/article/typo3-43-alpha-3" description: The TYPO3 Core Team is proud to announce the third alpha release of TYPO3 version 4.3. Get a short overview of the most important changes. image: "https://news.typo3.com/_assets/d1e01514e4c4a5b3147940fa2ec50682/Images/og-image-news.jpg" date: 2026-06-11 modified: 2026-06-11 categories: - "Developer & Technology" --- # TYPO3 4.3 Alpha 3 - [Developer & Technology](https://news.typo3.com/article/category/developer-technology) TYPO3 4.3 Alpha 3 ================= 23 May 2009 The TYPO3 Core Team is proud to announce the third alpha release of TYPO3 version 4.3. Get a short overview of the most important changes. - ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/b8266fdc667b773926c59081862ab148.jpeg)[Oliver Hader](https://news.typo3.com/article/author/oliver-hader) So, what's new in this release? ***General*** **Integration of Extbase and Fluid** Extbase and Fluid are backports from FLOW3 to bring MVC and a very flexible templating engine to TYPO3 v4. Extbase can be used in TYPO3 4.3 for frontend extensions only, but it's planned to support backend modules in TYPO3 4.4 as well. The techniques used by these two packages are the same as in FLOW3/TYPO3 5.0. Thus, it's possible to develop future-proof extensions now and easily migrate them to TYPO3 5.0 it is released. Having Extbase and Fluid in TYPO3 v4 is an important milestone in the transition to TYPO3 5.0. The extension [blog\_example](http://typo3.org/extensions/repository/view/blog_example/current/) is available as a demonstration of how Extbase and Fluid can be used. *Note: Since Extbase uses PHP Reflection, PHPdoc comments must be enabled to ensure Extbase working properly. eAccelerator must be compiled with "--with-eaccelerator-doc-comment-inclusion" for example. Otherwise eAccelerator must be disabled in order to make Extbase work.* **Integration of RSA authentication service** Using public-key cryptography allows sensitive data to be transfered over a secure channel, even if the website does not support HTTPS. This feature allows password data to be stored as a salted hash value. The RSA authentication service can be used in the frontend and backend by enabling the system extension rsaauth. *Note: The service requires either the openssl PHP extension or the openssl binary.* **Integration of autoloading for PHP classes** With this feature, only the files that are really needed for an application are loaded into memory. This results in a dramatic performance improvement. The PHP files are looked up using a registry file that returns a simple array mapping PHP class names to the corresponding file names. The file t3lib/core\_autoload.php contains all core related classes of t3lib and tslib. The file ext\_autoload.php provides similar data for individual extensions. The extension "extdeveval" helps generate these autoload registry files automatically. ***Backend improvements*** **Integration of a mass file uploader** Uploading files is now available with an optional Flash Uploader which shows a nice widget with information on the upload progress. It makes it possible to select multiple files at once. Enable the Flash Uploader by checking the appropriate checkbox in the User Setup, reload the backend and make sure that your browser has the latest version of Flash (Flash v9+) installed. ***Frontend improvements*** **Cleaning up CSS styled content** CSS styled content was split into separate files for each compatibility versions of TYPO3 (3.8, 3.9, 4.2 and current). When including the static template of css\_styled\_content, a specific version must be chosen. **Image rendering and GIFBUILDER improvements** The profile data of images is now cut off by default to reduce file sizes. This behaviour can be modified or disabled in the install tool or by setting the TypoScript property "stripProfile" on IMAGE objects. GIFBUILDER now supports automatic line breaks by defining a maximum width of the element to be rendered. The new TypoScript properties are "breakWidth" and "breakSpace". ***Next steps to climb the TYPO3 4.3 hill*** Please test this alpha release as much as possible, especially the new features from the first two alpha releases and those described above! If you're using one of the new features in a project already and discover bugs, please report them immediately to [http://bugs.typo3.org/](http://bugs.typo3.org)! If you're upgrading from a previous TYPO3 version, please make sure to execute the database analyzer and update wizard in the TYPO3 install tool. During the next few weeks, we will release a beta version which defines the "feature freeze" and locks down the development of new features. In the beta phase we will continue with fixing bugs only before turning to release candidates and the final version of TYPO3 4.3. This means that you can expect the final version to be ready in July 2009. For a detailed overview of the features planned for TYPO3 4.3 and their progress, have a look at the [TYPO3 v4 Development Page](http://forge.typo3.org/wiki/typo3v4-core), the bugtracker, and the ChangeLog. The list of [pending documentation](http://wiki.typo3.org/index.php/Pending_Documentation) in the wiki describes the new properties and tells how they can be used. You can download the packages at . MD5 checksums: ``` ab3d8d6d4311b33ce1db0fe193273608 dummy-4.3.0alpha3.tar.gz59deeda2d5285e1922d46691830a6821 dummy-4.3.0alpha3.zip47124c54b8a34a4f00e390174780bc28 typo3_src-4.3.0alpha3.tar.gz0c0bea78ac580564fb1904a227262ced typo3_src-4.3.0alpha3.zip8774acde8abe834023ecbb40b05fb391 typo3_src+dummy-4.3.0alpha3.zip ``` ***Rock on! Olly*** ![](https://news.typo3.com/typo3temp/assets/t3g/blog/gravatar/cc7cba9757f98fbe05023a139119df74.jpeg) About the Author [Oliver Hader](https://news.typo3.com/article/author/oliver-hader) Core Developer at TYPO3 GmbH,Hof, Germany [Website](https://typo3.com)[Twitter](https://twitter.com/ohader)[LinkedIn](https://www.linkedin.com/in/oliverhader/)[Xing](https://www.xing.com/profile/Oliver_Hader) Oliver started to work with TYPO3 in 2005 and was fascinated by the product and its universe. Since 2007 he is member of the TYPO3 Core Team. After going back to university in 2014 for achieving a postgraduate master degree in internet web science, he is now researching on advanced web technology topics in general and for TYPO3 in particular. In his spare time, Oliver loves to go cycling cross-country in the uplands around Hof (Germany) in northern Bavaria - at the region where he's living as well. [More posts by this author](https://news.typo3.com/article/author/oliver-hader)