The exchange said deposits and withdrawals for cbETH will remain fully available on Ethereum and Base after support ends on the three other networks.
Coinbase said it will stop supporting cbETH deposits and withdrawals on the Arbitrum, Optimism and Polygon networks on Aug. 17, 2026. The wrapped staking token (tokenized staked Ether) will remain fully available on the Ethereum and Base networks, meaning users can still move cbETH through those chains after the change takes effect.