According to Odaily Planet Daily, GMX V2.1 has been launched on Arbitrum and Avax. The main optimizations include: 1. The introduction of a new GLV vault, which can automatically transfer liquidity between GM markets with the same underlying assets as needed; 2. The GLV vault uses the new ExchangeRouter.createShift function, which can realize instant withdrawals from one GM market and deposits in another GM market without paying deposit and withdrawal fees; 3. Price oracle information based on timestamps no longer relies on RPC, thereby improving reliability; 4. Implementing a lending rate kink model, which will increase traders' interest rates.