Binance has announced changes to the collateral rates for certain assets in its unified account, effective March 20 at 14:00 (UTC+8). The collateral rate for U will be increased to 95%, while A2Z and WIF will see their rates reduced to 10%. Additionally, at 14:30 on the same day, Binance Futures will update the leverage and margin tiers for several USDT-margined perpetual contracts, including RLSUSDT, AIOTUSDT, LIGHTUSDT, and SOLVUSDT, generally lowering the maximum leverage available. Binance has advised users that these adjustments will impact current positions and grid trading strategies.