# Transition from Open Ethereum to the Nethermind client

**URL:** https://forum.fuse.io/t/transition-from-open-ethereum-to-the-nethermind-client/718
**Category:** Fuse Network
**Created:** [July 12, 2024, 11:19am UTC](https://forum.fuse.io/t/transition-from-open-ethereum-to-the-nethermind-client/718 "2024-07-12T11:19:55Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![emmanuel](https://avatars.discourse-cdn.com/v4/letter/e/3e96dc/32.png) [@emmanuel](https://forum.fuse.io/u/emmanuel)
#### Post date: [July 12, 2024, 11:19am UTC](https://forum.fuse.io/t/transition-from-open-ethereum-to-the-nethermind-client/718/1 "2024-07-12T11:19:55Z")

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**Community Forum Update: Mandatory Client Upgrade for Node Operators**

🚨 **Attention Fuse Network Node Operators!** 🚨

We’re excited to announce a significant upgrade to our network: **We are transitioning from Open Ethereum to the Nethermind client**. This upgrade is crucial for all validators to maintain network security and efficiency.

**What You Need to Know:**

- 🌐 **Testing Phase** : Currently live on Fuse Sparknet. The upgrade will be available on Mainnet soon.
- ⏳ **Deadline** : Complete the migration to continue your participation on the Fuse Mainnet.
- 📖 **Migration Guide** : For detailed instructions, visit our migration guide [here](https://github.com/fuseio/fuse-network/blob/master/nethermind/OE_Migration.md).

**Need Help?** If you encounter any difficulties or have questions, please don’t hesitate to reach out through our community support channels:

- **Discord** : [Join us here](https://discord.gg/GjG43kUecw)
- **Telegram** : [Join us here](https://t.me/fuseio/163559)

This upgrade is mandatory, and your prompt action is essential to keep the network running smoothly. Thank you for your cooperation and continued support!

Let’s make Fuse Network stronger together!