Joomla is written in PHP, uses object-oriented programming (OOP) techniques (since version 1.5) and software design patterns, stores data in a MySQL, MS SQL (since version 2.5), or PostgreSQL (since version 3.0) database,and includes features such as page caching, RSS feeds, printable versions of pages, news flashes, blogs, search, and support for language internationalization.
As of November 2016, Joomla! has been downloaded over 78 million times. Over 7,800 free and commercial extensions are available from the official Joomla! Extension Directory, and more are available from other sources. It is estimated to be the second most used content management system on the Internet, after WordPress.
Change log v3.7.1
Security Issues Fixed
High Priority – Core – SQL Injection (affecting Joomla! 3.7.0) More information »
Fixed attribute checks in the new calendar #15573
Inject the JInput dependency into the session handler #15605
Fix b/c break in JMenuItem #15553
Fix article ordering in the backend #15655
Fix milliseconds handling in for PHP Versions lower to 7.1.0 #15853
Fixing JFilterInput adding byte offsets to character offset #15966
Redirection fails on multiple status values produced by old FOF2 Extensions #15738
Remove empty locked cache file if callback function terminate process #15592
Visit GitHub for the full list of bug fixes.