# Summary

This is a full release that upgrades Substrate / Cumulus / Polkadot version to v0.9.16 to be compatible with the new release of the relaychain.

Release Note: https://github.com/AcalaNetwork/Acala/releases/tag/2.3.1

# Referendum

* https://acala.subscan.io/referenda/3
* https://acala.subsquare.io/democracy/referendum/3

The proposal aims to develop the KILT Decentralized Identity Provider (DIP), offering an OpenID-like authentication flow for Web3. It enables cross-chain identity establishment by using on-chain and off-chain mechanisms. Led by BOTLabs GmbH, seeks to reduce centralization in identity management while providing users control over their data. Key components include pallets for identity providers and relying parties, along with support crates for chain runtimes. The proposal outlines milestones for development, testing, and deployment, highlighting the need for ongoing maintenance and future enhancements

Technical support on Github and in #polkascan:matrix.org and substrate.stackexchange.com channels.

Add support for runtime calls at other blocks than the most recent #346.

Upgrade contract interface to support WeightV2 #337.

Added SCALE type definitions for upcoming MetadataV15 in Substrate.

Implemented new Polkascan Explorer and Subsquid extensions to the py-substrate-interface extension framework.

Added multiple params as key support for query_map().

New runtime interface: more intuitive approach to interface with the runtime functionality.

Updated metadata docs for Polkadot & Kusama parachain and stand-alone runtimes.

Added support for ink! v4

- Problem Statement: The current version of Substrate/Cumulus/Polkadot is incompatible with the new release of the relaychain, affecting all users of the Acala Network.
- Significance: The incompatibility issue hinders the smooth operation and functionality of the Acala Network, potentially impacting its user base and overall performance.
- Proposed Solution: The proposal suggests a full release that upgrades Substrate/Cumulus/Polkadot version to v0.9.16 to ensure compatibility with the new release of the relaychain.
- Expected Outcomes: The upgrade is expected to resolve the compatibility issue, ensuring seamless operation of the Acala Network and enhancing user experience. The value proposition lies in maintaining the network's performance and user satisfaction.

#3 Runtime Upgrade - Update Substrate / Cumulus / Polkadot version

No Active Proposals