+2013-02-18 Julien Rioux <jrioux@lyx.org>
+ * Format incremented to 463:
+ - Use the LyX name of encodings instead of the LaTeX names.
+ The LyX name must be unique, while the name used by LaTeX
+ not necessarily, e.g. different packages might implement
+ support for the same encoding.
+ - Add utf8-platex encoding.
+