Use TorizonCore Builder to customize Device Tree for Torizon OS 7

I’ve just seen that branch toradex_6.6-2.1.x-imx is now available in https://git.toradex.com/cgit/device-tree-overlays.git/log/?h=toradex_6.6-2.1.x-imx.
Can I use this branch now to build Torizon OS 7?
Or should I stay on toradex_6.6-2.0.x-imx?