It went into master on Nov 25, but by then, release branches were in use.
If you’re on Stable, you can sort of see this from About → Changelog, where Canary releases happen until 2.1.0.0_experimental_2024-11-15, but after that you don’t see the Canary detail.
Those who like all the latest work can stay Canary, but branch gets only a hand-picked subset.
Apparently this one didn’t make the cut. It was actually release noted in Canary though, below: