# eth2 quick update no. 2

DevFeed: [eth2 quick update no. 2](<https://devfeed.tech/articles/eth2-quick-update-no-2-16865.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2019/10/31/eth2-quick-update-no-2>)

Author: Danny Ryan

Published: 2019-10-31T00:00:00Z

Content type: article

Language: en

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

Topics: [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Network](<https://devfeed.tech/topics/network.md>), [Development](<https://devfeed.tech/topics/development.md>)

Tags: [availability](<https://devfeed.tech/tags/availability.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [hardening](<https://devfeed.tech/tags/hardening.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [network](<https://devfeed.tech/tags/network.md>), [release](<https://devfeed.tech/tags/release.md>), [release-notes](<https://devfeed.tech/tags/release-notes.md>), [research-development](<https://devfeed.tech/tags/research-development.md>), [scalability](<https://devfeed.tech/tags/scalability.md>)

## AI overview

This second eth2 quick update reports the v0.9.0 Tonkatsu specification release, ongoing work on a modified Phase 1 sharding proposal, and client development focused on eth1-to-eth2 infrastructure, production hardening, and optimization. It also describes reducing the initial shard count and increasing target shard block sizes in the new proposal.

## Source excerpt

Welcome to the second installment of eth2 quick update. tldr; Spec release of v0.9.0 -- Tonkatsu to ensure Phase 0 development can continue unimpeded. Work continues in ironing out the details of the modified Phase 1 proposal. Quiet client development focused on eth1 -> eth2 infrastructure, general hardening...