The official release announcement of Pidgin 2.7.0 is only 50 words and can be found on their development list. It announces, "Pidgin 2.7.0 is released. Included are a ton of bug fixes, some new features, and a fix for a security issue. We recommend that everyone updates ASAP. Windows builds and source are available currently; other packages will become available as the appropriate maintainers have time to build."
Some of the additions in Pidgin 2.7 that we found include adding a user-interface window for sending attentions (i.e. buzzes and nudges) on supporting protocols, making the search dialog more unobtrusive, X-Status ICQ support, support for HTML formatted messages on ICQ, better support for Yahoo JAPAN, and various other fixes.
Pidgin is now also dependent upon at least GTK+ 2.10.0 and GLib 2.12.0. Pidgin 2.7.0 can be downloaded at Pidgin.im.