v9.2.1

• Important If using import { WellKnownChain } from '@polkadot/rpc-provider' it is recommended that you rather use ScProvider.WellKnownChain (the import may be dropped in a future major version)

Changes:

• Don't assume non-empty path specifiers on portable variant/composites
• Explicit param length checks for all generic portable overrides
• Re-export ScProvider in @polkadot/api, aligning with {Http, Ws}Provider
• Expose WellKnownChain as static on ScProvider.WellKnownChain
• Checks for non-available interface types & runtime/rpc definitions
• Ensure .entries/.keys arguments is less than map-entry query
• Add Polkadot 9260 upgrade block
• Add Westend 9271 upgrade block
• Update to latest Substrate metadata