This release is a temporary urgent patch to mitigate the cross-chain infrastructure between Beacon Chain and Smart Chain so that the cross-chain can be re-enabled back. It is a hardfork release for both testnet and mainnet.

Mainnet: The hardfork upgrade named Moran is expected to happen at block height 22,107,423. The current block generation speed forecasts this to occur around 12 Oct. 2022 at 8:00 AM (UTC).

Testnet: The hardfork upgrade expected to happen at block height 23,603,940. The current block generation speed forecasts this to occur around 11 Oct. 2022 at 8:00 AM (UTC).

The changes include:

• fix the vulnerability in the iavl hash check. This will eventually migrate to ICS23 spec.
• introduce block header in sequence check in CrossChain Contract.
• make relayer whitelisted to the genesis candidates. There will be further BEPs proposed on how to define the relayer candidates. Procedure to upgrade:

Upgrade Steps:

• Download the binary in this page.
• Stop your node if it is still in running.
• Replace your old binary with the new one.
• Start/Restart your node with the new binary.

Changelog

#1121 vm: add four proof verifier to fix the vulnerability in KeyValueMerkleProof

Assets