Ahead of tomorrow's Undead Nightmare DLC release, Rockstar has amended Red Dead Redemption with an automatic title update. Undramatically named "Title Update 1.05," the free digital addition to RDR brings with it "Friendly Free Roam" mode (the same as Free Roam, just without all the player-on-player murder), as well as a mess of fixes for everything from griefing to missing co-op Achievements.
Given that the patch also adds some preparations for tomorrow's DLC, Title Update 1.05 is a mandatory update before you start wranglin' the undead. Head past the break for the nitty gritty details on everything the update includes.