Cameleon2 is downloadable here.
You can also access the Subversion repository.

See the INSTALL file for installation procedure.

Check the FAQ about installation..

You can read the ChangeLog.

The following libraries are required to compile Cameleon:

• OCaml 3.09.1 or above installed
• LablGtk 2.6.0 or above installed (with lablglade enabled)
• LablGtkSourceview 0.2.1 or above installed
• XML-light 2 or above installed
• Pcre-OCaml 5.09 or above installed (may work but was not tested with previous versions)

1.9.17 (27 Nov 2006)
Bug fixes and enhancements in Chamo. Search, query-replace and completion are available in Chamo, with regular expressions based on PCRE.

1.9.16 (10 Oct 2006)
The chamo editor is included and usable in cameleon. Many fixes and enhancements.

1.9.15 (06 Oct 2006)
Cameleon now includes chamo, a powerful text editor with OCaml as scripting language.

1.9.13 (10 May 2006)
A new configuration process which uses an OCaml script to detect required tools and libraries. Fixes and enhancements.