A milestone event took place during this year's Devcon – the Ethereum Interop Forum (EIF). This gathering brought together key players from across the Ethereum ecosystem who set aside competition to focus on a shared mission: making Ethereum truly interoperable.

As we step into 2025, we continue to summon Ether's Phoenix through the evolution of Retroactive Public Goods Funding. This post outlines our plan to improve the Retro Funding mechanism, as well as the proposed scope of contributions Retro Funding will reward in 2025, with the end goal of more effectively and accurately rewarding those creating the impact on the Superchain.

Interoperability is the key to achieving the Superchain vision, and it’s the central focus of the Optimism Collective’s roadmap for 2025.

Today we’re excited to welcome Kraken to the Superchain with Ink: a blockchain powered by the OP Stack.

With over 30 OP Chains in the Superchain ecosystem and nearly half of all L2 transactions taking place on the OP Stack, our community is bigger than ever and we're taking the opportunity to reintroduce the key pillars of the Optimism Collective.

Uniswap Labs, Uniswap Foundation, and Optimism are excited to announce Unichain, an L2 purpose-built for DeFi, exclusively on the OP Stack.

Today, every OP Chain in the Superchain operates under a standardized revenue sharing model,  ensuring all chains contribute fairly and equitably, with no exceptions or special treatment.

Today we are excited to welcome Soneium to the Superchain.

Optimism began with a single chain – an L2 called OP Mainnet – a single team, and a single dream: to scale Ethereum. Watching Optimism grow is perhaps the greatest privilege: today, we are lucky to count dozens of values-aligned organizations as members of the Optimism Collective. Over 20 OP Stack Chains have committed to joining the Superchain vision, each contributing revenue towards the Collective’s shared initiatives. With over 39% of all L2 transactions in July, the Superchain is making significant progress toward a future where an abundance of blockchain infrastructure can support internet-level usage.