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.
This release was possible thanks to a hard work of over 130 different volunteer contributors.
Over 700 bugs have also been resolved with the 3.4 release of the Joomla! CMS.