For the past few weeks, Team Ninja's Twitter has been less about promoting the game and more about telling people about the multitude of glitches and how to avoid them. I lost all my save data when upgrading on the 360 version, which is cool.
But this patch seems to fix a lot of the major issues.
Fixed a bug that would hang the game when playing Tutorial #40.9 in French, Italian, German, or Spanish. Also fixed the bug that would corrupt save data after clearing Tutorial #40.8.
Not sure if the random frame skipping on the Xbox One version has been fixed, or the awful online connections, but this is a good step. Pretty interesting how they basically give you a cheat code to unlock everything you'd want to unlock to make up for save data loss.
Also interesting how they "fixed" the issue with the Xbox 360 save wipe. So you have to download the required patch outside of the game instead of inside of it, because the latter was wiping saves.