0.9
     * Update to the new Camlp4.

0.8
     * Really make it work with OCaml 3.09.
     * Support for Utf-16.

0.7 released May 24 2005
     * Bug fixes
     * Update to OCaml 3.09 (currently CVS). Still works with OCaml 3.08.
     * MIT-like license (used to LGPL)

0.5 release Jul. 8 2004
     * Document how to use a custom implementation for lex buffers
     * Update to OCaml 3.08

0.4 released Jan. 10 2004
     * Bug fix (accept 1114111 as valid Unicode code point)
     * Add the rollback function

0.3 released Oct. 8 2003
     * Bug fix
     * Add a new predefined class for ISO identifiers

0.2 released Sep. 22 2003
     * Changed the names of predefined regexp
     * Fix max_code = 0x10ffff
     * Lexers that changes encoding on the fly
     * Documentation of the interface Ulexing

0.1 released Sep. 20 2003
     * Initial release