The 3.4 release introduces new features into the CMS such as improved front end module editing, decoupling of weblinks, composer integration, Google new reCaptcha and security improvements by implementing UploadShield code which can detect most malicious uploads by examining their filenames and file contents. Please note: Due to technical reasons we have had to disable the Install from Web Service. We are working to get it back online as soon as possible. To find extensions please use the Joomla! Extensions Directory.
Thanks to the hard work of over 50 different volunteer contributors, nearly 150 bugs have also been resolved with the 3.4 release of the Joomla! CMS. See the list of fixed GitHub issues for details of the tracker items fixed.