Ethereum will undergo Berlin hard fork upgrade on April 15

According to the Ethereum core developer meeting, Ethereum developers plan to perform the Berlin hard fork at block height 12244000 (estimated time April 15).

The upgrade includes various optimizations to the contract, covering gas efficiency, updates to the way the Ethereum Virtual Machine (EVM) reads code, and other changes to prevent DDOS attacks.

The upgrade includes at least five EIPs, EIP-2565, EIP-2315, EIP-2929, EIP-2718, and EIP-2930, and will be released on four Ethereum test networks before deployment. However, the EIPs required for the Ethereum 2.0 merger are not included. The Berlin hard fork was originally planned for June or July 2020, but was delayed mainly due to centralization issues surrounding the Geth client.