v4.9.1

Upgrade priority: Medium. Required for the next v0.9.0 Polkadot/Kusama chain upgrades where parachains are used.

• Breaking change The previously deprecated contracts interfaces, has been removed. Update to <myContract>.query.*, <myContract>.tx.* and <myCode>.tx.* interfaces as per the previous code usage hints.
• Important By default the isPedantic mode is now switched on for storage queries. This means that the API will fail on any types where the input/output decoding doesn't match 100%

Changes:

• Re-add isPedantic check on storage decoding
• ConsensusEngineId now implements [u8;4] (mapping closer to Rust source)
• Additional Xcm types
• Adjust parachain types
• Remove error logging on createType (details passed in error)
• Adjust ContractInfo type as per latest Substrate
• Adjust DigestItem type as per latest Substrate
• Adjust re-encoding of BitVec based on decoded length
• Added contracts_instantiate, state_traceBlock & system_reservedPeers RPCs
• Prepare for auto-capability detection with historic .at queries
• Add known upgrade block for Westend 900 & 9000
• Remove all deprecated interfaces inside @polkadot/api-contracts
• Initial support for NMap storage keys
• Support metadata v13 from Substrate (upcoming upgrade)
• Optimize historic metadata retrieval from rpc core