altering tables in the `mysql` database - safe?

[sfullman]

Hi,

I wanted to add some fields to the permissions tables in the mysql database, mainly an EditDate TIMESTAMP(14) field to know when the permission was added. Are there any special precautions when adding fields to the mysql table or modifying it outside of the GRANT or REVOKE statements? Obviously I don't want to make sure nothing will be affected by trial and error for these table.

Thank you,
Samuel Fullman
Compass Point Media