&RELNO
Returns the base release version number of the current file to a receiving variable or GRIP statement. The base release version number is the earliest release in which the part file can be retrieved.
NOTE: You must open the appropriate directory and/or file header
before you execute this GPA using the FHREAD statement. If you want to
access more than one file or directory, you can use the DOPEN and DNEXT statements to
cycle through the files.
Read Only - String - Less Than or Equal to 7 Characters
Specific strings are returned for each release version. For example, Vn, Vnn.n.n, etc. Where each "n" represents the corresponding base version.