• Breaking change The decorated field getters on Struct were moved to the prototype class for performance reasons. While struct.<field> access still behaves in the same way, with the same results, this does mean that the prototype getters are not visible when doing an Object.keys(struct) or when doing an object spread.
• Breaking change Deprecated interfaces have been removed including tx.sign(...) (use signAsync), Result.{is, as}Error (use {is, as}Err) as well as storage .range(...) operations.
• Breaking change Deprecated interfaces on api-contract have been removed. Always ensure you pass an options object to construction and query methods.
• Breaking change Contracts access via api-contract will now detect the usage of storageDepositLimit in params, if not available the contract interfaces will not be decorated.

Changes:

• Decorate Struct/Enum/Set field getters on class prototypes
• Convert api-contract usage of api.rpc.* to api.call.*
• Drop support for contract runtimes without storageDepositLimit (runtime contractsApi only has support for latest)
• Export api.rx.call.* for internal usage (derive, contracts)
• Remove old-style param passing as opposed to options in api-contract
• Support for alliance/motion collective derives
• Add Kusama 9260 upgrade block
• Add Polkadot 9230 & 9250 upgrade blocks
• Add Westend 9251, 9260 & 9261 upgrade blocks
• Update to latest Substrate, Polkadot & Kusama metadata