npm / @metamask/delegation-core
@metamask/delegation-core
What changed in @metamask/delegation-core 34 to 38, from its official release notes, upgrade guides and advisories. Also covers @metamask/7715-permission-types, @metamask/delegation-deployments. Sources checked 2026-10-19.
1 breaking14 new APIs and options
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli init@metamask/delegation-core 381 changes
New APIs and options 1
Adds a chain deployment for Arc Mainnet.
@metamask/delegation-core 374 changes
Breaking changes 1
Removes Nodejs 18 support; the engines requirement changes from ^18.18 || >=20 to >=20.
New APIs and options 3
Adds a chain deployment for Arc Testnet.
Adds a chain deployment for Robinhood Chain mainnet.
Adds a chain deployment for Robinhood Chain testnet.
@metamask/delegation-core 3410 changes
New APIs and options 10
Adds a utility function to create an ERC-20 token allowance caveats array.
Adds a utility function to create an ERC-20 token periodic caveats array.
Adds a utility function to create an ERC-20 token stream caveats array.
Adds a utility function to create a native token allowance caveats array.
Adds a utility function to create a native token periodic caveats array.
Adds a utility function to create a native token stream caveats array.
Adds a utility function to create a token approval revocation caveats array.
Adds a utility to resolve PermissionDecoderConfigs for use with @metamask/gator-permissions-controller.
Adds utilities for MetaMask facilitator addresses.
Adds permission schema metadata.