[KyleS]

Originally Posted by bottiger Even Kyles includes a steamclient download and tells people to install it. https://forums.alliedmods.net/showthread.php?t=229556 I don't know about everyone else, but I would prefer not to replace a file that can get clobbered by an update or worry about the game using a new interface not included in Kyles' version.

That's for Family Sharing as the async result struct changed. If you're not using that, any version should be fine. However, the primary purpose for the extension was that, so it has that.