The Ethereum blockchain is scheduled to undergo London Upgrade at block height 12,965,000, or approximately at 5th August 2021 12:32pm UTC. The upgrade will result in a hard fork and hence there's a possibility of two temporarily two chains being created. To manage the risks around this event, we have taken the following steps:

• Deposits and withdrawals for ETH and ERC-20 tokens (USDT and DETO) will be suspended at 12:15pm UTC. We will look to resume deposits and withdrawals as soon as the situation is stable. In normal course, withdrawals are processed between 12 - 15pm UTC daily. On 5th August, withdrawals for ETH, USDT and DETO may get delayed. BTC withdrawals will not be impacted.
• In the case of a chain-split, we will credit users with the ETH from the chain with the most work done. Users which have ETH balances on Delta may not be able to get the newly created token.
• Trading in ETHUSDT Perpetual, ETHBTC Perpetual, ETH Sep Futures, ETH MOVE and ETH Options will continue un-impacted. In case of a split, the index prices of these contracts will follow the chain with the most work done.