B1061 was intentionally expended on the recent Hera mission.
In doing so, it broke the record for the fastest Falcon 9 second stage.
Scott Manley: https://x.com/DJSnM/status/1843317121511743973
43040km/h the fastest falcon 9
43040 km/h = 11.956 km/s.
A few words from Kiko Dontchev, SpaceX VP of launch: https://x.com/TurkeyBeaver/status/1843341972414836779
The @SpaceX is unreal. Facing only a 15% chance of good weather this morning and an incoming major hurricane, we still went for (with a plan to roll the rocket back in the hangar for safety if we didn’t launch). Good launch, good orbit, and good payload deploy. Sayonara HERA and Booster 1061!!!
Legend of a booster. This one alone has single handedly outperformed the entire launch accomplishments of whole countries and companies. I'm looking forward to the higher numbered boosters with more block upgrades that surpass it and push to even higher launch counts.