You will most likely see this naming style in the following places:
: Digitized archives of classic instruction booklets, like those for the PlayStation 2, often use this to identify which physical print of the manual was scanned.
: Tools like the Pikmin 1 Randomizer require specific versions (like USA v1.00) because memory addresses for cheats and mods change between regional and versioned updates.
: Sites like GameFAQs or Archive.org use these tags to distinguish between the original 1.0 release and later "Greatest Hits" or "Platinum" revisions.