It looks like rogues lose proficiency in hand crossbows. Since they are making us lose racial weapon proficiency as well, this makes me very unhappy.
Steady Aim appears to be gone as well, for someone like me who frequently has crap dice rolls in combat, this is going to hurt a lot.
Sneak attack change is painful and stupid. Like you said, this needs to be changed to once per round. Also changing the wording to it having to be an ally within 5 ft of the target is bad.
The evasion level change is horrible.
Losing Blindsense seems weird but maybe it will be added back in for some subclasses. I have never played rogue levels past 12 so not sure how much use it actually gets at most tables. It could be that many people didn't see a need for it.
I have only ever played Arcane Trickster and Scout so I can't speak for the changes to Thief, but from what you mentioned they seem pretty bad.
Losing Performance doesn't seem nearly as bad as the rest of what they did because they thankfully left us the ability to build custom backgrounds. Only problem I have with this is that is removing an option that is currently in game and I hate it when this sort of thing happens.
In all, I dislike what they have done to rogue. For me, buffing Slippery Mind and the changes to Stroke of Luck do not even come close to making up for the rest.
