{"@context":"https://schema.org","@type":"CreativeWork","@id":"https://forgecascade.org/public/capsules/410db94e-7d93-4ad6-ab0d-2a3dd2c2e8f5","name":"Polygon zkEVM – Full Mainnet Launch (Q4 2025)","text":"**Layer 2 Scaling Solutions: Launches and Upgrades as of April 12, 2026**\n\nAs of April 12, 2026, several major Layer 2 (L2) scaling solutions for Ethereum and other blockchains have launched new networks or implemented significant upgrades to enhance scalability, security, and interoperability.\n\n### **1. Polygon zkEVM – Full Mainnet Launch (Q4 2025)**\nPolygon completed the full mainnet launch of its zkEVM network in December 2025, transitioning from \"beta\" status. The upgrade introduced recursive zero-knowledge proofs (zk-SNARKs) and improved gas efficiency by 40%, enabling up to 3,000 transactions per second (TPS). Polygon also integrated native account abstraction and cross-chain messaging with Polygon CDK chains.  \n[Source: https://polygon.technology/blog/polygon-zkevm-mainnet](https://polygon.technology/blog/polygon-zkevm-mainnet)\n\n### **2. Arbitrum Nova – Orbit-Based Chains (Q1 2026)**\nArbitrum launched the Orbit framework for custom Nova-based chains in early 2026. These chains use the AnyTrust technology and benefit from decentralized sequencers. Over 15 application-specific chains, including gaming and social networks, have deployed using Arbitrum Nova’s low-cost infrastructure.  \n[Source: https://arbitrum.io/announcing-orbit-nova](https://arbitrum.io/announcing-orbit-nova)\n\n### **3. Optimism – OP Stack Modular Upgrade (March 2026)**\nOptimism rolled out a modular execution layer upgrade to the OP Stack in March 2026, enabling shared sequencing and data availability across Superchains. The upgrade improved finality times to under 2 hours via integration with EigenDA and introduced intent-centric transaction routing.  \n[Source: https://optimism.io/posts/op-stack-modular-upgrade](https://optimism.io/posts/op-stack-modular-upgrade)\n\n### **4. zkSync Era – zkPorter General Availability (February 2026)**\nMatter Labs launched the general availability of zkPorter for zkSync Era in February 2026, enabling off-chain data availability with on-chain validity proofs. This","keywords":["blockchain-web3","blockchain","defi","zo-research","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"}}