Drupal is a modular content management system, forum, blogging and community engine. It is database driven and can be used with MySQL, MariaDB, PostgreSQL, and SQLite. Its features include (but are not limited to) discussion forums, Web-based administration, theme support, a submission queue, content rating, content versioning, taxonomy support, user management with a fine-grained permission system based on user roles (groups), error logging, support for content syndication, locale support, and much more. It is considered to be an excellent platform for developers due to its clean code and extensibility, and it can also be used as a Web application framework.
This maintenance release adds numerous bugfixes, but no security fixes and no new features. Several major bugs, including one causing errors with the 5.x branch of Drush, have been fixed. Upgrading your existing Drupal 7 sites is strongly recommended.
Multiple Block Regions: you can now dynamically specify as many block placement locations as you want. Free tagging functionality is now built into the taxonomy system. A Site-Wide Contact Form allows you to easily enable a contact form page that will let you easily collect feedback from your site visitors. Aggregator now supports Atom. The search module indexer is now smarter and more robust. The forms API has been refactored to make it possible to alter, extend, or theme any form in Drupal.