v0.6.0a0

What's Changed

• Adapt to Starknet / cairo-lang 0.12.1a0 by @FabijanC in #516
• Defaulting to Cairo compiler v2.1.0-rc0 when recompiling in your declare v2 transactions.
• This is a breaking pre-release:
  • This Python implementation of Devnet will soon be replaced by a Rust one
  • The official testnet is introducing a change to the status of failed transactions: distinguishing between failed validation (REJECTED tx) and failed execution (REVERTED tx). A simplification of this is introduced in this version Devnet:
    • All failures are labeled as REVERTED (change), but not included in blocks (same as it was).
    • Read more on this documentation page or on the official documentation site

Full Changelog: v0.5.5...v0.6.0a0