Upgrade priority: **Medium** (timely update recommended) - due to change(s): Make signature batching use specialized methods (paritytech/substrate#6616).

Specs of the runtime can be found here: [https://github.com/paritytech/polkadot/releases/tag/v0.8.15](https://github.com/paritytech/polkadot/releases/tag/v0.8.15)

:

1. Upgrade priority: Medium (timely update recommended)
2. PolkaAssembly CouncilMotion post covers upgraded specifications for Polkadot: Specialized methods for Batch Signature Verification. 
3. Related technology specs can be found in this release: [https://github.com/paritytech/polkadot/releases/tag/v0.8.15](https://github.com/paritytech/polkadot/releases/tag/v0.8.15).

#180 SetCode, Kusama runtime 2015