# Gray Glacier Upgrade Announcement

DevFeed: [Gray Glacier Upgrade Announcement](<https://devfeed.tech/articles/gray-glacier-upgrade-announcement-17020.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2022/06/16/gray-glacier-announcement>)

Author: Tim Beiko

Published: 2022-06-16T00:00:00Z

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>), [Network](<https://devfeed.tech/topics/network.md>), [Blockchain](<https://devfeed.tech/topics/blockchain.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>)

Tags: [announcement](<https://devfeed.tech/tags/announcement.md>), [blockchain](<https://devfeed.tech/tags/blockchain.md>), [developers](<https://devfeed.tech/tags/developers.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [network](<https://devfeed.tech/tags/network.md>), [node](<https://devfeed.tech/tags/node.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [protocol-announcements](<https://devfeed.tech/tags/protocol-announcements.md>), [scheduled](<https://devfeed.tech/tags/scheduled.md>)

## AI overview

Ethereum's Gray Glacier network upgrade was scheduled for block 15,050,000, expected around June 29, 2022. It delayed the Ice Age/Difficulty Bomb by 700,000 blocks, or roughly 100 days, and required node operators to update compatible clients.

## Source excerpt

The Ethereum network will be undergoing a scheduled network upgrade at block 15,050,000, which is expected to occur on Wednesday, June 29, 2022. The exact date is subject to change due to variable block times and time zones. Please upgrade your node before Monday, June 27, 2022 to account for...