# Dencun Mainnet Announcement

DevFeed: [Dencun Mainnet Announcement](<https://devfeed.tech/articles/dencun-mainnet-announcement-17094.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2024/02/27/dencun-mainnet-announcement>)

Author: EF Protocol Support

Published: 2024-02-27T00:00:00Z

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>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [releases](<https://devfeed.tech/topics/releases.md>)

Tags: [announcement](<https://devfeed.tech/tags/announcement.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [improvements](<https://devfeed.tech/tags/improvements.md>), [network](<https://devfeed.tech/tags/network.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [protocol-announcements](<https://devfeed.tech/tags/protocol-announcements.md>), [releases](<https://devfeed.tech/tags/releases.md>), [software](<https://devfeed.tech/tags/software.md>), [update](<https://devfeed.tech/tags/update.md>)

## AI overview

The announcement states that the Dencun upgrade will activate on Ethereum mainnet at epoch 269568 on March 13, 2024, at 13:55 UTC. It introduces ephemeral data blobs through EIP-4844, or protodanksharding, intended to reduce Layer 2 transaction fees, and includes changes to Ethereum's consensus and execution layers. A later update notes Dencun-compatible client releases with performance and stability improvements.

## Source excerpt

March 12, 2024 update: Since the initial publication of this post, several client teams have made Dencun-compatible releases containing significant performance and stability improvements. While previously announced versions are still considered sufficient for the upgrade, a column has been added to the Client Releases tables highlighting the latest recommended versions...