# OpenEthereum ----\> Nethermind Node Upgrade **URL:** \ **Category:** Fuse Network\ **Created:** [July 18, 2024, 11:55am UTC](https://forum.fuse.io/t/openethereum-nethermind-node-upgrade/719 "2024-07-18T11:55:33Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![emmanuel](https://avatars.discourse-cdn.com/v4/letter/e/3e96dc/32.png) [@emmanuel](https://forum.fuse.io/u/emmanuel)\ **Post date:** [July 18, 2024, 11:55am UTC](https://forum.fuse.io/t/openethereum-nethermind-node-upgrade/719/1 "2024-07-18T11:55:33Z")
We have moved from Open Ethereum to Nethermind client! **The upgrade is mandatory for ALL NODE OPERATORS to keep the network secure and efficient**. 🌐 Now live on Fuse Sparknet. ⏳ ALL NODE OPERATORS must complete the migration by July 29th to continue participating in the Fuse Mainnet. PLEASE NOTE: Node Operators who do not migrate risk being removed from the Network activities. DEADLINE: 29.07.2024 📖 [Migration guide](https://github.com/fuseio/fuse-network/blob/master/nethermind/OE_Migration.md). ---
**Author:** ![emmanuel](https://avatars.discourse-cdn.com/v4/letter/e/3e96dc/32.png) [@emmanuel](https://forum.fuse.io/u/emmanuel)\ **Post date:** [July 24, 2024, 11:35am UTC](https://forum.fuse.io/t/openethereum-nethermind-node-upgrade/719/2 "2024-07-24T11:35:25Z")
Mandatory Update for Fuse Chain Node Operators! We are rolling out a mandatory update for the Nethermind client. This update introduces critical new EIPs. Nodes that do not update will fork, including all OpenEthereum nodes. **New Version: nethermind-1.25.4-v6.0.1 Deadline: Monday, July 29, 2024 Target Block: 30823400 Timestamp: 1722254400** Please update to **nethermind-1.25.4-v6.0.1** before the **July 29th** deadline to stay remain on the Fuse Mainnet. [Migration guide](https://github.com/fuseio/fuse-network/blob/master/nethermind/OE_Migration.md). The quickstart version is updated. You can participate in the Forum Discussions via this thread. Thank you!