A HiRDB update version has the same version number and revision number as the active HiRDB, such as 07-02, followed by a code, -mn; for example, 07-02-01, where the underlined part is the -mn code. For versions earlier than 07-02, m can be a /, an alphabetic character (excluding I, O, and P to T) or a number, and n is an alphabetic character from A to Z. For versions 07-02 and later, m and n are both numbers.
You can switch to the HiRDB update version while the existing version of HiRDB is running.