concrete5 5.4.2 introduces Composer, a new way to edit your site's pages, better interface multilingual support through a dashboard configuration screen, updates important core libraries and provides over 60 bug and security fixes, behavioral improvements and developer updates. These bug fixes and security updates make this a recommended update for anyone running 5.4.1.1.
Full 5.4.2 release notes are here >
You can download concrete5 5.4.2 from here: