Ethereum Policies: We recommend that the node staff be upgraded to the Berlin compatible version first.

According to a recent article posted on the official Ethereum blog, Berlin Hard Fork is ready, the first upgrade test network, Ropsten, will be upgraded until March 10, and the mainnet will launch on April 14. If you are running Ethereum nodes, you should upgrade to the Berlin-compatible version as soon as possible for testnet and for this version by April 7 for the mainnet. The blog post also states that Ethereum node providers must upgrade their nodes before hard-blocking any network blocks they wish to join. Due to the constant change of the blocking time, it is recommended to carry out the adjustment a few days before the due date.