It is often useful to know what version of the starlink software you are using. This is especially important if you wish to report a bug to the staff at EAO. To find out what version you are running simply use the command starversion. The output provides you with the version and when the software was last updated. i.e.
starversion 2017A @ bfdc8534a17c406c59302030ed1c1ae1a1223bd1 (2017-07-28T19:12:59)