Work in v1.2 will start soon, but first it was time to polish v1.1 so there's a good, stable build to play while v1.2 bakes. The new pax pathfinder delivered on its promises of smarter pax, and then large performance improvements were implemented. Read about this and more in the March devblog:
https://carloscarrasco.com/nimby-rails-march-2021/