# Ethereum Altair prereleases, beacon chain security RfP, and merge progress

DevFeed: [Ethereum Altair prereleases, beacon chain security RfP, and merge progress](<https://devfeed.tech/articles/finalized-no-24-16955.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2021/03/24/finalized-no-24>)

Author: Danny Ryan

Published: 2021-03-24T00:00:00Z

Content type: article

Language: en

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

Topics: [releases](<https://devfeed.tech/topics/releases.md>), [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [ethereum](<https://devfeed.tech/tags/ethereum.md>), [pre-release](<https://devfeed.tech/tags/pre-release.md>), [proof-of-work](<https://devfeed.tech/tags/proof-of-work.md>), [release](<https://devfeed.tech/tags/release.md>), [research-development](<https://devfeed.tech/tags/research-development.md>), [security](<https://devfeed.tech/tags/security.md>), [testing](<https://devfeed.tech/tags/testing.md>)

## AI overview

The article reports on two feature-complete Altair prereleases for Ethereum's beacon chain, a security and testing request for proposals, and progress toward the merge of Ethereum's proof-of-work application layer with its proof-of-stake consensus layer.

## Source excerpt

tl;dr Altair prereleases: Stargazer and Half of 'em just look like dots Security RfP Merge progress...