Cairo v2.21.0-rc.0

Release Thursday, 8 October 2026

Version: v2.21.0-rc.0
Repository: starkware-libs/cairo

Release notes

Cairo compiler.

Release Polkadot SDK 1d ago

Polkadot stable2606-3

This release contains the changes from polkadot-stable2606-2 to polkadot-stable2606-3. ℹ️ Please note: this is a patch release for the latest stable version stable2606. If your nodes...

Release Cairo 1d ago

Cairo v2.21.0

Cairo compiler.

Release Agave (Solana validator) 1d ago

Agave (Solana validator) Release v4.5.0-alpha.2

This is a pre-release for testing only. Do not deploy to mainnet, testnet, or any production host. https://github.com/anza-xyz/agave/blob/master/CHANGELOG.md#edge-channel What's...

Release Hardhat 2d ago

Hardhat v3.19.0

This release expands our support for the upcoming Amsterdam hardfork, including: EIP-7976, EIP-7981, EIP-7997, EIP-8024 and EIP-8037. In particular, EIP-8037's separation of execution...

Release Geth 2d ago

Geth Protein Sludge Pack (v1.17.8)

This is a security-focused release, fixing several DoS risk issues ❤️‍🩹 . Note most of the the fixes related to bugs which only become possible after the activation of the Amsterdam...

Release Hardhat 2d ago

@nomicfoundation/hardhat-ethers-chai-matchers@3.0.12

Changes • #8649 b274f5f Thanks @spideydotjs! - Added validation for the subject of changeTokenBalance, changeTokenBalances, changeEtherBalance, and changeEtherBalances to produce a...