Please upgrade iotex node to v0.10.2 as soon as possible (following instructions here https://github.com/iotexproject/iotex-bootstrap/blob/master/README.md#join-mainnet-beta). DO make sure you upgrade your node before Feb 10th otherwise it will not be able to produce block. You ONLY need to upgrade the image version to v0.10.2, NO configuration change is required.
You can also use our upgrader (https://github.com/iotexproject/iotex-bootstrap/blob/master/README.md#upgrade-your-nodeone-line-upgrader) to upgrade. Thanks you!