Ethereum’s Constantinople and St. Petersburg upgrade will be occurring in the next couple of days. At this stage it is slated to happen at about 6am on the 1st of March (Sydney time).

We will be disabling all Ethereum and ERC20 token (ETH, OMG, ZRX, and PLA) deposits and withdrawals at approximately 11pm on the night before(Feb 28th), and will be re-enabling them a few hours after the fork when it is safe to do so. We will be monitoring the situation closely and will update you with any changes to this plan. Trading will be active during this period.

This appears to be a non-contentious fork (which is why we use the terminology “upgrade”), however as always if you wish to maintain coins/tokens on both sides of the fork, please withdraw your coins/tokens to a personal wallet prior to us disabling withdrawals. If you are unsure what this means, we recommend you leave your coins/tokens in your Independent Reserve wallet – your funds will be safe and upgraded to the new blockchain.

For more information, please see here on the official Ethereum blog:
Constantinople/St. Petersburg upgrade announcement

If you have any questions, please submit a ticket through our secure Support system.