2001

b2/cafelog was released through Michel Valdrighi.

2003 – Announcement: 0.7 (preliminary)

Version 0.7 (Preliminary) Matt Mullenweg and Mike Little fork b2 and create WordPress. This preliminary launch covered a texturize engine, hyperlinks supervisor, XHTML 1.1 compliant templates, a brand-new management interface, the capacity to do guide excerpts, and new templates.

2004 – Announcements: 1.0, 1.2

Version 1.0 (Davis) becomes the legit 1.0 bringing browser set up, seek engine permalinks, more than one class help, a smart improving technique, and import enhancement for transferring from different structures to WordPress. Support becomes delivered to the admin experience for modifying posts and feedback in addition to the beginning of many different functions to be progressed on withinside the future.

Version 1.2 (Mingus) delivered plugins, hierarchically class help, OPML import and export in addition to introductory language help. Features like automated thumbnail creation, more than one replacement carrier pinging, and password encryption additionally had been highlighted.

2005 – Announcements: 1.5, 2.0

Version 1.5 (Strayhorn) delivered a Theme system and featured the advent of static pages, carrying WordPress to be poised as a content material control system. A new subject has become to be had to show off how the newly deployed Theme system may be prolonged and utilized. Hundreds of hooks have been made to be had, taking into consideration the integration of plugins to key elements of WordPress. The WordPress Plugin Repository become created taking into consideration a collaborative surrounding among Plugin Developers and customers.

Version 2.0 (Duke) become delivered with chronic caching, a brand new user role system, and a brand new backend UI. WYSIWYG modifying introduced a higher experience generating content material which additionally covered inline photographs, video, and document uploads. Post previewing allowed to check posts earlier than being made live on websites. Plugin hooks have been more advantageous to permit functions extension through plugin builders. Theme features have been delivered to beautify themes with code, much like plugins.

2007 – Announcements: 2.1, 2.2, 2.3 

Version 2.1 (Ella) delivered a brand new UI, autosave, spellings checking, and different new functions. Enhancements delivered capacity to replace content material and code editor, placing pages as the front webpage, including no-indexing to the complete webpage for search engine privacy, XML uploading enhancements, and the addition of the non-public pages function. MySQL queries noticed a competitive optimization and re-write. Other developer additions covered new hooks and APIs, language enhancements, and pseudo-cron scheduling.

Version 2.2 (Getz) introduced higher Atom feed help and speed optimizations for plugins and filters. Widgets advent laid the basis for transferring extra functions into layout, which furnished a base for plugin functions extension. Protection becomes delivered on activating plugins, checking for mistakes/errors before successful activation. phpMailer become delivered which additionally furnished help for SMTP Mail. Database collation manipulation and plenty of code notation enhancements have been additionally a part of this launch.

Version 2.3 (Dexter) provided tagging, replace notifications, quiet URLs, and a brand new taxonomy system. Core replace notifications have been delivered permitting customers to higher preserve tune of whilst new launch updates have been to be had. The jQuery model becomes up to date bringing speed increases. Canonical URL fixes have been delivered and a brand new $wpdb->prepare() syntax help rolled out taking into consideration more secure MySQL queries.

2008 -Announcements: 2.5, 2.6, 2.7

“Winner of InfoWorld’s “Best of open supply software program awards: Collaboration””

Version 2.5 (Brecker) become launched with a brand new management UI layout by Happy Cog and delivered the dashboard widget system and the shortcode API.

Version 2.6 (Tyner) constructed on 2.5 and delivered publish revisions and Press This. Usability observes become accomplished on 2.5 over the summer, leading to the improvement of the Crazyhorse prototype, and the subsequent launch.

Version 2.7 (Coltrane) redesigned the management UI to enhance usability and make the admin device greater customizable. 2.7 additionally delivered automated upgrading, integrated plugin set up, sticky posts, remark threading/paging/replies, and a brand new API, bulk control, and inline documentation.

2009 – Announcements: 2.8, 2.9

“Winner of Open Source CMS Awards’ “Overall Best Open Source CMS””

Version 2.8 (Baker) delivered an integrated theme installer and enhancements to themes, widgets, taxonomies, and normal speed (which include a brand new Widget API) (and drag and drop). There have been substantial speed upgrades relative to fashion and scripting. A new CodePress editor delivered syntax highlighting to the Dashboard based code editor. Screen Options have been delivered to the Admin with a purpose to personalize user interplay with the objects getting used and the capacity to filter the others.

Version 2.9 (Carmen) (140+ Contributors) become an improvement extensive launch introducing photograph modifying, a Trash/Undo function, bulk plugin updating, and embed help permitting included third party content to seamlessly combine with content material. There have been additionally substantial batch updating compatibility enhancements, remark framework enhancement, editor upgrades, user profile, registration and automation enhancements, gallery objects utilization throughout more than one posts advent and higher hooks and filters for excerpts, smilies, HTTP requests, user profiles, creator hyperlinks, taxonomies, SSL help, tag clouds, query_posts, and WP_Query.

2010 – Announcement: 3.0

“Winner of digitalsynergy’s “Hall of Fame CMS class withinside the 2010 Open Source””

Version 3.0 (Thelonious) (218 Contributors) become the main launch, it delivered custom publish types, made custom taxonomies easier, delivered custom menu control, delivered new API’s for custom headers and custom backgrounds, delivered a brand new default subject called “Twenty Ten” and merged former WordPress MU (permitting the control of more than one web sites) to be a part of WordPress Core, renamed to Multisite. Bulk plugin updates have been similarly streamlined from the preceding launch. Theme builders noticed the advent of the latest APIs permitting implementation of custom backgrounds, headers, shortlinks, menus, publish types, and taxonomies without document modifying. An initiative to feature contextual assist going ahead noticed its begin.

2011 – Announcements: 3.1, 3.2, 3.3

“Winner of InfoWorld’s “Bossie award for Best Open Source Software””

Version 3.1 (Reinhardt) (180+ Contributors) delivered Post Formats and the Admin Bar. A redesigned linking workflow becomes delivered to greater effortless paintings with present posts and pages. The beginnings of a streamlined writing interface have been delivered. The import/export system become overhauled and there have been many question enhancements to permit appearing to carry out superior taxonomy and custom fields queries.

Version 3.2 (Gershwin) made WordPress quicker and lighter, this model upgraded minimal necessities to PHP five.2.four and MySQL five.zero.15, and delivered a brand new completely HTML5 default subject called “Twenty Eleven” The Dashboard layout become refreshed and the formerly delivered Admin Bar noticed additions. This launch featured the advent of a Distraction-Free Writing mode. The Comments Moderation display become progressed for approvals and replies. The replace technique becomes streamlined, making updates a good deal quicker with delivered stability.

Version 3.3 (Sonny) made WordPress greater pleasant for novices with welcome messages and function pointers. Improvements covered a brand new drag and drop uploader, progressed co-modifying help, navigation and toolbar enhancements, and higher contact help for iPad and different tablets.

2012 – Announcements: 3.4, 3.5

Version 3.4 (Green) delivered the Theme Customizer and previewer, permitting to check and take a look at subject revisions previous to making use of them. The Media Library become prolonged to help the usage of photos to populate custom headers and to pick out the peak and width of the photos. Image captioning noticed enhancements to help HTML. With this launch, Twitter “tweets” have been made to layout a pleasant show through losing the URL into the editor. There have been many developer enhancements, which include XML-RPC, a custom header API, and overall performance enhancements to WP_Query.

Version 3.5 (Elvin) delivered the brand new media supervisor and the brand new default subject called “Twenty Twelve” with attention to the cellular show. The focus becomes additionally located at the glide for importing images and growing galleries. The Admin Dashboard noticed the approaching of a Retina-geared-up show with excessive decision graphics.

2013 – Announcements: 3.6, 3.7, 3.8

Version 3.6 (Oscar) delivered a brand new default subject called “Twenty Thirteen” integrated Audio and Video help, dynamic and scalable Revisions, progressed Autosave and Post Locking. Audio and video enhancements covered local help for audio and video embeds, an integrated HTML5 media player, a brand new API for assisting metadata (along with ID3 tags), and enhancement to present oEmbed vendors Spotify, Rdio, and SoundCloud.

Version 3.7 (Basie) (211 Contributors) delivered automated updates for renovation and protection updates, a more potent password meter, and more advantageous language help and car set up of language files.

Version 3.8 (Parker) (188 Contributors) delivered a brand new mag fashion default subject called “Twenty Fourteen” The Admin panel become overhauled with a sparkling present-day appearance and new vector icons. Color schemes have been additionally made to be had to be carried out to the Admin experience. The Widget segment become additionally streamlined for less complicated use.

2014 – Announcements: 3.9, 4.0, 4.1

Version 3.9 (Smith) (267 Contributors) progressed the media revel in and delivered stay widget and header previews. The Visual Editor become progressed for speed, accessibility, and cellular use. Image and media enhancements covered including the capacity to add photos thru drag and drop from computing devices and photograph modifying enhancement. Audio and video playlist help become delivered in addition to Gallery previews from withinside the editor. Themes have become browsable from the Appearance segment.

Version 4.0 (Benny) (275 Contributors) delivered a grid view for the media library and for putting in plugins. Previews for embedded content material along with Twitter and YouTube have become to be had from withinside the editor even as getting ready content material. Editor writing enhancements covered increasing the editor with content material for a less complicated revel in. The Plugin segment becomes more advantageous to expose greater elements and offer a higher seek revel in.

Version 4.1 (Dinah) (283 Contributors) delivered a refreshed Distraction Free Writing mode, language set up from the Settings display (to replace among forty one-of-a-kind languages with help from Google’s Noto font family), and a lovely new default subject, “Twenty Fifteen” Developer enhancements covered the addition of superior metadata question conditional logic.

2015 – Announcements: 4.2, 4.3, 4.4

“Winner of CMS Critic Award’s “Best CMS for Personal Websites””

Version 4.2 (Powell) (283 Contributors) delivered emoji help, uploaded prolonged character support, and switched database encoding from utf8 to utf8mb4. Plugin updates have become dynamic from one web page without reloading. Two new oEmbed vendors have been delivered (Tumblr, Kickstarter). Theme switching has become to be had via the Customizer. This model additionally covered developer question enhancements.

Version 4.3 (Billie) (246 Contributors) delivered integrated web page icons help and delivered formatting shortcuts withinside the visible editor. Live Menu previews have become to be had from the Customizer. Password procedures have been progressed for protection in addition to List Views withinside the Admin panel.

Version 4.4(Clifford) (471 Contributors) delivered responsive photos, embeddable posts, and a brand new default subject, “Twenty Sixteen” oEmbed help become delivered for WordPress posts with wealthy previews and show in addition to 5 new vendors (Cloudup, Reddit Comments, ReverbNation, Speaker Deck, and VideoPress). Developer enhancements covered the integration of the REST API structure, question enhancements for feedback, Term Metadata, and new Objects (Term and Network) for greater predictable delivered interplay functionality inside code.