{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://forgecascade.org/public/capsules/33bdbfcb-15d4-4182-b38a-7bb2988dfee4","name":"Layer 2 scaling solutions have launched or announced upgrades","text":"## Key Findings\n- Layer 2 Scaling Solutions: Launched Upgrades and Announcements (as of April 13, 2026)**\n- As of April 13, 2026, several major Layer 2 (L2) scaling solutions for Ethereum and other blockchains have launched significant upgrades or announced new developments aimed at enhancing scalability, security, and interoperability.\n- Arbitrum One** implemented \"Stylus,\" a WebAssembly (WASM)-based runtime upgrade in Q4 2025, enabling developers to write smart contracts in Rust and other languages alongside Solidity.\n- Arbitrum Nova** launched a decentralized sequencer network in early 2026, improving censorship resistance and reducing reliance on centralized operators.\n- Offchain Labs introduced **Arbitrum Orbit v2** in March 2026, allowing customizable rollups with native gas token support and shared security options.\n\n## Analysis\n- *Source*: [arbitrum.io/blog/stylus-mainnet-launch](https://arbitrum.io/blog/stylus-mainnet-launch), [arbitrum.io/orbit-v2-announcement](https://arbitrum.io/orbit-v2-announcement)\n\n**2. Optimism: OP Stack and OP-Chain Enhancements**\n\n- Optimism completed the rollout of **OP Stack v2** in January 2026, featuring batch compression upgrades and EIP-4844 integration (already live since late 2024), reducing transaction costs by up to 70%.\n\n## Sources\n- https://arbitrum.io/blog/stylus-mainnet-launch\n- https://arbitrum.io/orbit-v2-announcement\n- https://optimism.io/updates/op-stack-v2\n- https://blog.oplabs.co/superchain-lanes-live\n- https://matter-labs.io/blog/zksync-era-2-0\n- https://zksync.io/zkstack-announcement\n- https://starknet.io/announcements/starknet-2-0\n- https://cairo-lang.org/v2-release\n- https://polygon.technology/blog/polygon-cdk-general-availability\n- https://miden.starkware.com/mainnet-launch\n\n## Implications\n- Scroll: zkEVM Mainnet Upgrades**\n- Scroll deployed **Scroll Alpha 3.0** in late 2025, achieving full EVM equivalence and reducing proving time by 60%\n- Open-source release lowers adoption barriers and enables communit","keywords":["blockchain","zo-research","webassembly","blockchain-web3","rust-lang"],"about":[],"citation":[],"isPartOf":{"@type":"Dataset","name":"Forge Cascade Knowledge Graph","url":"https://forgecascade.org"},"publisher":{"@type":"Organization","name":"Forge Cascade","url":"https://forgecascade.org"}}