v0.3.0

StarkNet

• A new release - Alpha 1:
  • L1 <-> L2 interaction using messages
  • On-chain data for storage changes
• Storage variables can be a tuple of felts
• Calldata arguments may be dynamically-sized arrays.
• Starknet CLI
  • New commands: get_transaction and get_contract_addresses
  • New --contract argument for tx_status to get location information for errors
• range_check is now required for storage vars
• StarkNet OS source code (only Cairo. Hints are not functional yet)

Cairo language

• Uninitialized tempvars
• Hint expressions (for example, tempvar x = nondet %{ y %})
• Power operator (for example, 2**3. Only for constants)
• Hex numbers (for example, 0x1234)
• Multiple hints per instruction
• cairo-reconstruct-traceback command