It's available for download right now and fixes some of the game's slowdown issues. It also adjusts some minor display settings and tweaks a bit of the gameplay.
1.41 patch notes (My favorites are bolded!):
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XMB presence - Medley Game information has been abbreviated, displaying all information required to identify the location of the player. *
Late Join 'Hitch' improvements - addresses the pause experienced by players when someone late joins a game. * Navigating Screens With Large Clans - Slow down issue fixed.
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Increased speed of fade at the beginning of the round. * Claymores can now be detonated when player is in the prone position.
* Increased countdown timer in Quick Match Pre Game lobby from 20 to 60 seconds.
* Enabled Quick Match team switching.
* Quick Match Ranked, Unranked and Unranked Respawn games, each contains 6 different playlists: 3 8vs8 and 3 16vs16 players.
Check it out!