A new 11-34 cassette option was announced as well, offering improved range over the previous generation’s 11-32.
The brake calipers don’t look significantly different from the previous-generation Sora, but Shimano’s information states, “New dual-pivot BR-R3000 brakes deliver a 20% increase in rim brake performance over the previous generation.”
Sora for flat-bar was also upgrade with updated shifters and brake levers.