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Emacs
Fedora 10 includes Emacs 22.2.
In addition to many bugfixes, Emacs 22.2 includes new support for the Bazaar, Mercurial, Monotone, and Git version control systems, new major modes for editing CSS, Vera, Verilog, and BibTeX style files, and improved scrolling support in Image mode.
For a detailed description of the changes see the Emacs news for the release (http://www.gnu.org/software/emacs/NEWS.22.2).