On December 3rd, Raul Jordan, a research and development staff of Prysmatic Labs, the construction team of Ethereum 2.0, posted a update on the development progress of Ethereum 2.0. The progress is as follows: 1. Update the testnet and Ethereum 2.0 beacon chain browser; 2. Merge code and Pull Request functions. The specific performance is as follows: Initial Chain Sync has been fundamentally improved, API improvements and archive node repairs, and end-to-end functional tests have been performed. In addition, the forthcoming work includes: 1. Implementing a serialization algorithm for Prysm data structures; 2. Integrating Slasher with Beacon nodes; 2. Peer-to-peer repair of P2P networks.