I had some time to kill and I watched the stream detailing 2.1.
Meh, not much. I mean depending on what floats your boat.
Apparently people have been raving about the metro. I really don't get that obsession with it. But I guess it's nice, for immersion.
But besides that it's just a glorified fast travel system, so I really don't get the obsession with it. I think it sort of grew just because they never implemented it, even though they kept showing it off. But I don't think a lot of people seriously wanted it. Or maybe I'm mistaken.
Outside of that it's some new motorcycles, some adjustments to some boss fights, ability to listen to the radio on the go (just for me, I was never very impressed with the radio music in CP2077; felt very generic for the most part).
Repeatable car races and some new maneuverability on motorcycles.
Plus some other smaller things.
There's a lot of little things, but outside the metro it's nothing too interesting.
I would've loved maybe one of those aerial vehicles, but I guess that simply would give the player access to areas of the city that were probably not modeled.
EDIT: Was too lazy to write an actual summary, so here goes from neogaf
From the other thread; here are all the additions and changes coming with patch 2.1:
- Metro System - Unlocks once the player receives a call. Player can sit the whole ride or skip/fast travel
- Radioport - An item the player owns to listen to radio outside of car. Turns off automatically when the quest music kicks in
- Boss Fight Improvements - Specifically Adam Smasher (looked super cool on the stream)
- Replayable Races - After you complete the Claire race quests, you will be contacted for 4 more races. Able to win an auto fixer prize
- 5 New Motorcycles - Appearances from existing brands in game
- New Porsche - Samurai Johnny Design
- More Motorcycle Combat - Flips, wheelies, use of throwing knives
- Car Chases - During quests, after killing gang members they will hunt you down in cars and chase you. -Car Chase Gigs - Gang members will hunt player down during car theft missions
- New HUD Options - Visual effects, enlarging, disable time in minigame, etc
Upcoming (so not included in 2.1):
- Hang out with Romance Characters
- Full Dualsense support on PC
- More cats