BerlinHappened on April 15th, 2021The Berlin hard fork is a network upgrade that incorporates four Ethereum Improvement Proposals (EIPs) that tinker with gas prices and allow new transaction types. The upgrade is a stepping stone to the much bigger London hard fork, which will activate EIP 1559, a momentous (and controversial) change to Ethereum’s fee structure.
The EIPs are: EIP-2565, EIP-2718, EIP-2929, EIP-2930