Summary

This is a runtime upgrade for Acala & Karura that introduces new configurations for pallet incentives and minor improvement for xtokens precompile.

Release Note: https://github.com/AcalaNetwork/Acala/releases/tag/2.22.0

Referendum

https://acala.subscan.io/referenda/87
https://acala.subsquare.io/democracy/referendum/87