Version 2.12 of SeaMonkey
Release Notes: This release adds support for SPDY networking protocol v3. It implements WebGL enhancements, including compressed textures for better performance. Optimized memory usage for add-ons. Implements the CSS word-break property. Implements a high precision event timer. HTML5: native support has been added for the Opus audio codec. Support has been added for the source element media attribute. Support has been added for the audio element and video element played attribute. Several stability issues have been fixed.
Other releases
Release Notes: OS X 10.6 is now the minimum supported Mac version. JavaScript Maps and Sets are now iterable. SVG FillPaint and StrokePaint have been implemented. The sandbox attribute has been implemented for iframes, enabling increased security. Plugins can be set to click-to-play (instead of blocked completely) automatically through the blocklist now.
Release Notes: JavaScript responsiveness has been improved through incremental garbage collection. CSS3 animations, transitions, transforms, and gradients have been unprefixed. MD5 is no longer supported as a hash algorithm in digital signatures. The Opus codec is now supported by default. The reverse CSS3 animation direction has been implemented. Per-tab reporting is now available in about:memory. Several stability issues have been fixed.
Release Notes: This release adds support for SPDY networking protocol v3. It implements WebGL enhancements, including compressed textures for better performance. Optimized memory usage for add-ons. Implements the CSS word-break property. Implements a high precision event timer. HTML5: native support has been added for the Opus audio codec. Support has been added for the source element media attribute. Support has been added for the audio element and video element played attribute. Several stability issues have been fixed.
Release Notes: Security fixes were made. Fixes were also made for a number of non-security-relevant crashes, increasing the stability of the whole platform and the Mail and Newsgroups part of SeaMonkey.
Release Notes: SeaMonkey has been rebuilt on top of the modern Mozilla platform, featuring world-class add-on management, among other things. In addition, it has been improved with feed support (including an RSS and Atom feed reader in the mail component), a modern look, restoration of browser tabs and windows after crashes or restarts, tabbed mail, automated updates, smart history search from the location bar, faster JavaScript, HTML5 features (e.g. video and downloadable fonts), and even support for the Lightning calendar add-on.
