NigelPeck wrote: But I am also concerned that I would miss any updates that are made to the file I am overriding.
This had been my concern a while ago as well. Since then the good guys at HikaShop are also publishing the list of changed files with an update - see the link on top of the
changelog
. So, you can compare this list with your overrides, and if needed, use a file comparison tool to see what the exact changes were from the previous version to the newest.
In addition to reading the changelog (mandatory!), this list is a great tool to verify actuality of your overrides, obviously.