"In response to Dos attacks command Ethereum Foundation took the decision to hard forks, which will be held October 18 on the block 2463000. Customers Poloniex should not take any action, as the migration will be performed automatically and Ethereum-the balance will be transferred to the new circuit. But we should not forget that the Deposit and withdrawal of funds will for some time locked. Trading will be carried out in a normal regime", — said in a statement Poloniex.
The Deposit and withdrawal of funds will be available again after you restore the stability of the network.
"If you for some reason prefer to store their tokens in the old blockchain, you will need to remove them with the platform to implement the hard forks" — emphasizes Poloniex.
Similar information was reported and the administration of the exchange Coinbase to freeze the Deposit and withdrawal of funds from 17 October, 18:00 PST (Pacific standard time).
As reported ForkLog, new hardford Ethereum aims to optimize network performance and prevent numerous attacks, to which the project met for the last time.
Recall that the team Ambisafe called Ethereum developers to renegotiate the terms of hard forks, stating that the proposed limits on gas will stop services on which the company operates
Link to the news http://forklog.com/birzhi-poloniex-i-coinbase-predupredili-klientov-o-hardforke-ethereum/