Ethereum to roll out Berlin upgrade with 4 EIPs.

[Malam90]

The mainnet launch, which is expected to take place on Aprril 14, incorporates four Ethereum Improvement Protocols.
After months of planning, the Ethereum community has laid out a timeline for its upcoming Berlin upgrade, marking an important milestone in its development roadmap.

Berlin is scheduled to go live on the Ethereum mainnet at block 12,244,000, or April 14, Tim Beiko wrote on Monday. Ropsten, the first testnet to upgrade, is scheduled for March 10. The Goerli and Rinkeby networks are expected to upgrade in one-week increments on March 17 and March 24, respectively.

Ethereum node operators are being advised to upgrade to a Berlin-compatible version as soon as possible for the three testnets and before April 7 for the mainnet. Beiko explained:

“Ethereum node operators should upgrade their nodes prior to the fork block on the networks they want to participate in. Due to block time variability, it is recommended to update several days before the expected date.”
Exchanges, wallet service providers and Ether (ETH) tokenholders are not required to do anything to accommodate the upgrade.

A total of four Ethereum Improvement Protocols, or EIPs, will be implemented via Berlin. They include:

EIP-2565, which lowers the cost of the ModExp precompile
EIP-2929, which increases certain gas costs
EIP-2718, which introduces a new transaction type
EIP-2930, which includes a transaction type with optional access lists.
Berlin follows the Istanbul and Muir Glacier upgrades, which took place in December 2019 and January 2020, respectively. The current upgrade was named after Devcon 0, which took place in Berlin. Ethereum’s next planned upgrade will be called London, where Devcon 1 happened.  Source