starkware-libs/cairo-lang v0.11.0

on GitHub

Starknet:

• Initial support of Cairo 1.0 contracts:
  • New declare transaction version for declaring Cairo 1.0 contracts
  • Deploy and invoke are supported for Cairo 1.0 contract
    • The Cairo 1.0 ABI is not supported yet, so using starknet invoke requires omitting the --abi argument
  • New API: get_compiled_class_by_class_hash - returns the compiled class (CASM) of the given contract class
• Changes to on-chain data format. Include the Cairo1.0 declared classes and changes to the class hash of a given contract instance. See more information here
• Support for Poseidon hash (only in Cairo0 contracts)
• New syscall: replace_class - replaces the class of the contract calling it. This syscall can replace the proxy mechanism for upgradable contracts
• Mandatory message fees for messages from L1 to L2
• version-0 INVOKE and DECLARE transactions will no longer be supported in Starknet Alpha v0.11.0 (this unrelated to the continued support of Cairo 0 contracts)

Cairo:

• New builtins:
  • Poseidon hash function (efficient, STARK-friendly hash function)
  • Keccak hash function (currently, the keccak builtin cannot be used in Starknet)