For more details, please see the following:
https://github.com/interlay/interbtc/releases/tag/1.22.0
https://github.com/interlay/interbtc/compare/1.21.10...1.22.0
The latest compatible clients release for this version is v1.20.0:
https://github.com/interlay/interbtc-clients/releases/tag/1.20.0