Today I’ll go a little bit through the History of WordPress. Did you know that main releases of WordPress are codenamed after well-known jazz musicians, starting after version 1.0. That’s due to the fact that WordPress core developers share a love of jazz music, and all their major releases are named in honor of jazz musicians they personally admire.
Each version brought a new improvement, making WordPress to become what it is today;
Detailed Version Updates:
v 0.7 – Used the same file structure as its predecessor, b2/cafelog, and continued the numbering from its last release, 0.6. Only 0.71-gold is available for download in the official WordPress Release Archive page.
v 1.2 (Mingus)- Added support of plugins; which same identification headers are used unchanged in WordPress releases as of 2011.
v 1.5 (Strayhorn)- Added a range of vital features, such as ability to manage static pages and a template/theme system. It was also equipped with a new default template (code named Kubrick) designed by Michael Heilemann.
v 2.0 (Duke)- Added rich editing, better administration tools, image uploading, faster posting, improved import system, fully overhauled the back end, and various improvements to plugin developers.
v 2.1 (Ella)- Corrected security issues, redesigned interface, enhanced editing tools (including integrated spell check and auto save), and improved content management options.
v 2.2 (Getz)- Added widget support for templates, updated Atom feed support, and speed optimizations.
v 2.3 (Dexter)- Added native tagging support, new taxonomy system for categories, and easy notification of updates, fully supports Atom 1.0, with the publishing protocol, and some much needed security fixes.
v 2.5 (Brecker)- Version 2.4 was skipped, so version 2.5 added two releases worth of new code. The administration interface was fully redesigned, and the WordPress website to match the new style.
v 2.6 (Tyner)- Added new features that made WordPress a more powerful CMS: it can now track changes to every post and page and allow easy posting from anywhere on the web.
v 2.7 (Coltrane)- Administration interface redesigned fully, added automatic upgrades and installing plugins, from within the administration interface.
v 2.8 (Baker)- Had improvements in speed, added automatic installing of themes from within administration interface, introduces the CodePress editor for syntax highlighting and a redesigned widget interface.
v 2.9 (Carmen)- Added global undo, built-in image editor, batch plugin updating, and many less visible tweaks.
v 3.0 (Thelonius)- Added a new theme application programming interfaces (API); the merge of WordPress and WordPress MU, creating the new multi-site functionality, a new default theme called “Twenty Ten”, and many less visible tweaks.
v 3.1 (Reinhardt)- Added the Admin Bar, which is displayed on all blog pages when an admin is logged in, and Post Format, best explained as a Tumblr like micro-blogging feature. It provides easy access to many critical functions, such as comments and updates. Includes internal linking abilities, a newly streamlined writing interface, and many other changes.
v 3.2 (Gershwin)- Focused on making WordPress faster and lighter. Released only four months after version 3.1, reflecting the growing speed of development in the WordPress community.
v 3.3 (Sonny)- Focused on making WordPress friendlier for beginners and tablet computer users.
v 3.4 (Green)- Focused on improvements to theme customization, Twitter integration and several minor changes.
v 3.5 (Elvin)- Support of the Retina Display, color picker, new theme: Twenty Twelve, improved image workflow.