ChainCatcher message, the Frax core team has released the "FIP - 2XX" sFRAX proposal on the governance forum. This proposal plans to introduce Staked FRAX (sFRAX) into the Frax ecosystem, allowing users to deposit FRAX stablecoins into a smart contract (standard ERC-4626) and earn interest (denominated in FRAX stablecoins).The core team stated that similar to the Dai Savings Rate (DSR) concept, sFRAX focuses on addressing the near-zero duration yield curve of FRAX, providing users with the opportunity to earn FRAX stablecoins while contributing to the growth of FRAX supply. Apart from the deposited and earned FRAX stablecoins, sFRAX does not guarantee any yield on on-chain or off-chain assets or any redemption rights.