Release Notes: Holes in the XML-RPC library were fixed by replacing the library altogether.
Release Notes: The key changes include PHP5 support, better search, personal contact forms for registered users, improved multi-site support to run multiple Drupal sites from a single code base, extensible RSS 2.0 syndication support for enclosures (e.g. podcasts) and categories, support for Ping Ping-O-Matic to ping all major ping services, and many usability improvements for permissions, block configuration, statistics tracking, logs, forum configuration, content administration, and more.
Release Notes: Some of the key changes include a tab-based user interface, configurable menus, multiple roles per user, document/ image uploads, node-level permissions, improved locale support, anonymous comments, theme system improvements, customizable user profiles, usability improvements, configurable input formats, and performance improvements.
Release Notes: A number new features were added that improve Drupal's flexibility, performance, usability, and accessibility. Some of the new functionality includes the addition of a file API, support for the MetaWeblog API, and MovableType extensions, OPML support, and new themes.
Release Notes: With this installment, specific focus has gone into improving user-friendliness, both to end-users and administrators. These improvements include the introduction of URL aliasing, table sorting, and database prefixing, as well as substantial performance enhancements.
Release Notes: Clean URLs, support for WYSIWYG editors, context sensitive help, support for MS SQL, improved, more flexible permissions, a standard XHTML template, a better RSS/RDF parser, and UTF-8 support,
Release Notes: This release adds support for user profiles, comment moderation, improved forums, an auto-throttle congestion control mechanism, improved statistics tracking, and paging, and various performance improvements were made.
Release Notes: New modules in this release include tracker.module, weblogs.module, and taxonomy.module. Both the node system and the user system have been reworked. The user module now allows for user-authentication through XML-RPC. The node module now supports content versioning and has improved usability. The blogger API is supported. A great number of further enhancements were also added.
Release Notes: A major overhaul of the underlying design, replacing/rewriting existing modules, and various new modules have been added. Among the new modules are a blog module, a poll module, a static page module, a forum module, a collabortive book writing module, a statistics module, and a new content syndication framework to import and export RSS/RDF/XML feeds.
Release Notes: The comment/discussion code was rewritten. Sections and section manager were added, as well as "user ratings" similar to SlashCode's karma. Search functionality was improved. Translation or internationalization support was added, as well as a fine-grained user permission (or group) system, and a FAQ module. The "open submission queue" was changed into a (optional) module. The documentation was revised.