Polygon Labs, a leading blockchain infrastructure provider, has been focusing on building infrastructure that connects blockchains at scale for the past five years. The company has released multiple iterations of its technology, including Plasma, Proof of Stake, zkEVM, CDK, and now AggLayer and Katana. CEO Marc Boiron explains that these changes reflect a process of refinement aimed at building infrastructure that connects blockchains at scale. AggLayer, introduced in February 2025, is designed to provide trustless interoperability across blockchains, allowing optimistic rollups, ZK chains, and even non-EVM environments to exchange assets securely and share liquidity. It positions AggLayer differently from other interoperability initiatives, as it prioritizes secure liquidity sharing across heterogeneous systems. Polygon expects network effects to sustain adoption, and Katana, a liquidity-focused chain incubated inside Polygon, is being developed as a demonstration of this principle. Katana is a new blockchain developed under Polygon’s umbrella with the specific aim of serving as a DeFi liquidity hub. It focuses on consolidating capital and returning value to participants, rather than offering a general-purpose environment. The system is designed so that protocols in the same category do not directly compete for liquidity on-chain. Polygon PoS remains one of the most widely used networks in crypto, processing more small-value USDC transfers than Solana, with adoption growing in Argentina and Brazil where stablecoins are frequently used as substitutes for local currency. The growth reflects both grassroots activity and structured partnerships, with companies like Stripe enabling merchants to accept USDC payments over Polygon. Polygon PoS is being positioned within AggLayer as the specialized chain for payments and tokenized assets, while Katana focuses on DeFi. This modular approach reduces fragmentation by assigning specific functions to different chains, all linked by AggLayer.