Depending on how it’s used, “version” could be, as you suggest, {nIqHom mI’} or else {qa’meH mI’} “replacement number.”  {nIqHom mI’} might be limited to major updates (2.0 to 3.0) and {qa’meH mI’} for less drastic ones (2.0 to 2.1).

--- end quote ---