# Mainnet Merge Announcement

DevFeed: [Mainnet Merge Announcement](<https://devfeed.tech/articles/mainnet-merge-announcement-17031.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2022/08/24/mainnet-merge-announcement>)

Author: EF Protocol Support

Published: 2022-08-24T00:00:00Z

Content type: release

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [upgrade](<https://devfeed.tech/topics/upgrade.md>), [proof of work](<https://devfeed.tech/topics/proof-of-work.md>), [Network](<https://devfeed.tech/topics/network.md>), [hash](<https://devfeed.tech/topics/hash.md>), [JSON](<https://devfeed.tech/topics/json.md>), [Remote Procedure Call (RPC)](<https://devfeed.tech/topics/rpc.md>)

Tags: [consensus](<https://devfeed.tech/tags/consensus.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [execution](<https://devfeed.tech/tags/execution.md>), [hash](<https://devfeed.tech/tags/hash.md>), [json](<https://devfeed.tech/tags/json.md>), [network](<https://devfeed.tech/tags/network.md>), [node](<https://devfeed.tech/tags/node.md>), [proof-of-work](<https://devfeed.tech/tags/proof-of-work.md>), [protocol-announcements](<https://devfeed.tech/tags/protocol-announcements.md>), [rpc](<https://devfeed.tech/tags/rpc.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>)

## AI overview

Ethereum's mainnet transition from proof-of-work to proof-of-stake, known as The Merge, was scheduled in two phases: the Bellatrix upgrade on the Beacon Chain followed by the Paris transition when the execution layer reached the specified Terminal Total Difficulty.

## Source excerpt

Ethereum is moving to proof-of-stake! The transition, known as The Merge, must first be activated on the Beacon Chain with the Bellatrix upgrade. After this, the proof-of-work chain will migrate to proof-of-stake upon hitting a specific Total Difficulty value. The Bellatrix upgrade is scheduled for epoch 144896 on the Beacon...