If I'm torn about anything for Tor 15, it's that the cadence didn't align with a minimum of Firefox 144 as base.
Why?
View Transitions support being implemented in 144 is a very big deal and pushes the web forward for native transition animations.
In the next two or three versions before the end of 2025, Anchor Positioning will also be a big deal.
So, congrats on Tor 15, but Tor 16 will bring a massive improvement for Tor!