# 0.22.1

- Use new Compact<Index> transaction format - this requires the latest binaries from either Polkadot or Substrate

# 0.21.1

- PoC-3 support with latest Substrate master & Polkadot master
- Add support for Charred Cherry (Substrate) and Alexander (Polkadot) testnets
- Too many changes to mention, master now only supports latest PoC-3 iteration
- Use https://poc-2.polkadot.io if access is required to PoC-2 era networks