The patch does contain tweaks that are needed to fully integrate dedicated server support, which is needed if the player is connected to the Internet since the game is always online. (techtimes.com)
It gives you access to a specific game for a long as the company provides server support. (joystikrevolution.com)
That means that it will uphold the right of libraries and museums to preserve old games that are no longer available and require server support, in a playable state. (digitaltrends.com)