<\body> system> Thank you for upgrading . Several things have changed with respect to the old version on your disk. The most important changes are described below. In general, we recommend you to make backups of your old TeXmacs files before opening them using the present version of . In the unlikely case when your old file does not open in the correct way, please send a bug report to <\verbatim> \ \ \ \ bugs@texmacs.org and send your old document as an attached file. Do not forget to mention your version of and the system you are using.