The proof-of-stake blockchain Tezos announced that it has activated the 13th core protocol upgrade "Mumbai" and introduced the second-layer expansion solution Smart Rollups. After the "Mumbai" upgrade, Tezos will provide a WebAssembly (WASM) execution environment, allowing developers to use Rust Common programming languages such as , C, and C++ are built on the chain, making it easier for developers to create and deploy Dapps. Other upgraded features include: support for interactive fraud proofs, pipeline verification, reducing block time from 30 seconds to 15 seconds, etc.