WordPress is a free and open-source content management system (CMS) based on PHP and MySQL.WordPress is installed on a web server, which either is part of an Internet hosting service or is a network host itself. WordPress is an online, open source website creation tool written in PHP. But in non-geek speak, it's probably the easiest and most powerful blogging and website content management system (or CMS) in existence today.
WP 4.5.2 Versions
WordPress 4.5.2 is now available. This is a security release for all previous version the date of May 6, 2016 WordPress 4.5.2 Security Release
WP 4.5.1 Versions
April 26, 2016 WordPress 4.5.1 Maintenance Release
WP 4.5 Versions
Added inline linking, formatting shortcuts, live responsive previews, and other updates under the hood.
WP 4.4.3 Versions
Focus on mobile experience, better passwords and improved customizer.
WP 4.4.2 Versions
New "Press This" features, improved characters support, emoji support, improved customizer, new embeds and updated plugin system.
WP 4.4.1 Versions
Twenty Fifteen as the new default theme, distraction-free writing, easy language switch, Vine embeds and plugin recommendations.