Canton: external_call() rolls out to Mainnet - Q4 2026

According to Canton Network's announcement, external_call() is scheduled to roll out to Canton Mainnet with the Canton 3.6 release in late Q3 or early Q4 2026. The stated change would add EVM composability to the mainnet, following a demonstrated atomic swap between a Canton CIP-56 asset and an ERC-20 asset by users identified with a partyID and an EVM account, respectively.Deployment would move EVM composability from a demonstrated integration into a Canton protocol capability. That could expand how Canton applications interact with EVM-based assets and contracts, allowing cross-environment asset and contract interactions to be handled through the protocol rather than relying only on a separate demonstration. The rollout would establish availability, but it would not by itself show broad application use or sustained activity.A Canton user with just a partyID and a Zenith user with just an EVM account completed an atomic swap between a CIP-56 asset and an ERC-20 asset, neither requiring knowledge of the other's environment.↓ on the milestone.