So, I played my Halo CEA today and it has been updated (odd, because I last played it a couple of weeks ago without any kind of update prompt). I then entered Halo 4 (updated as expected), and also Halo 3, which ALSO got an update.
Is 343 patching every game in the MCC and also releasing those bugfixes in X360? I haven't played Halo 3 in like 2 years, but I found odd that all those games just asked me to get updated today.
You don't have to clear your cache. The 360 has a set limit on how much space can be taken up by standard style updates. Once it's filled, it will automatically replace the oldest ones and cycle through.
Huh. You'd think with hard drives that wouldn't be an issue, but the more you know...