CC Mode Compatibility Notes

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CC Mode 5.33 should work out of the box with Emacs >= 23.1, and XEmacs >= 21.4. It has been tested on Emacs 23.2, 23.4, 24.3 and 24.5, and XEmacs 21.4.24 and 21.5.34. It may well work on earlier versions.

If you're using very old versions of Emacs or XEmacs, then the file cc-fix.el(c) may be needed and will be loaded automatically. It corrects for some bugs in those versions, and also contains compatibility glue for missing functions in older versions. cc-fix.el(c) is not needed for later versions.