Changelog

All notable changes to the Sign Protocol EVM contract package are documented here.

1.1.4

• Hardened delegated signatures with EIP-712 domain binding, per-attester nonces, and deadlines.

• Added delegationNonces(address) and getDelegatedAuthorizationDigest(...) for delegated-action signing.

• Rejected legacy delegated signatures that do not use the new encoded (nonce, deadline, signature) format.

• Converted deployment and upgrade tooling from Hardhat scripts to Foundry scripts using the CREATE3 deployment template.

• Added deterministic SP implementation deployment and existing proxy upgrade scripts.

• Added bun run patch:sp for chain-aware proxy patching with Alchemy RPC URL derivation.

• Added optional proxy ownership transfer to PROD_OWNER after successful upgrades.

• Added standard JSON input for SP 1.1.4 contract verification.

• Removed legacy Hardhat, Prettier, and unused package tooling in favor of Bun and Foundry formatting.

1.1.3

• Removed registerBatch and related interface functions to reduce contract size.

• Added Soldeer support and refreshed Foundry dependency wiring.

• Added Monad testnet configuration and deployment metadata updates.

1.1.2

• Fixed linked-attestation validation behavior.

• Added missing revoked-attestation checks while attesting.

• Bumped the Solidity compiler configuration to 0.8.26.

1.1.1

• Fixed schema existence checks.

1.1.0

• Added storage of schema and attestation timestamps.

• Added backward-compatible behavior for existing schema and attestation counters.

• Optimized SP core contract and interface types.

1.0.1

• Fixed incorrect data passed to hooks.

1.0.0

• Initial npm package release for Sign Protocol EVM contracts.