Berlin is a hard fork of the current Eth 1.x proof-of-work (PoW) blockchain. The systemwide upgrade – which includes low-level changes for improving the original mainchain while Eth 2.0 is under construction – was originally planned for July, but was pushed back this summer due to burnout of client employees and a perceived need for higher client diversity.
Since then, the process for including Ethereum Improvement Proposals (EIPs) and which ones will end up in the hard fork has shifted.
Berlin was scheduled to have three EIPs as of June:
- EIP-2315: Simple Subroutines for the EVM
- EIP-2929: Gas cost increases for state access opcodes
- EIP-2537: BLS12–381 curve operations
However, EIP-2537 will no longer be included in Berlin. That EIP would make it easier for the Eth 2.0 blockchain and Eth 1.x blockchain to speak with each other by using a similar cryptographic setup.
Watch a recording of the call below:
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