This page contains a kind of check list which shall help us decide whether a new release of a game is so different from previous releases that it qualifies for a new release group (RG).
The construct of the RG has been invented to separate the released main versions of a game from each other. "Main versions" doesn't mean smallish changes, but significant gameplay changes that should be distinguishable from one another in the database from a documentation point of view.
Things that require a new RG
- Game release at a new platform
Things that do not matter for the decision
Localization
A different language usually doesn't matter, as these are documented otherwise, but see one exception below.
Patches / Updates
Only full releases can cause a new RG.
Special releases
A new RG is caused due to gameplay differences, not due to a fancy new box, a voluptuous manual, additional goodies, or other stuff.
Things that count pro a new RG (Pros)
Major pros
Things that count against a new RG (Cons)
Major Cons
Minor Cons