Ethereum Classic
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ETC · 5w

🎉 Phoenix hard-fork successfully activates on Ethereum Classic 🎉

🎉 Phoenix hard-fork successfully activates on Ethereum Classic 🎉

Update Jun 1: OpenEthereum is experiencing syncing issues, then recovering, but the issue is NOT splitting the network. Hopefully, a hotfix release is available to OpenEthereum users, but we don’t know when and recommend ETC consumers migrate to Core-geth as soon as possible.

The Ethereum Classic blockchain successfully activated the Phoenix hard-fork at block 10,500,839 or May 31, 2020 CT. Phoenix was inclusive of the ETH Istanbul features bringing Eth Classic and Eth use cases, tools, and collaboration opportunities to absolute technical compatibility while retaining their respective differences.

Phoenix marks the 3rd hard-fork completed within 1 year on the Ethereum Classic blockchain. The Atlantis, Agharta, and Phoenix hard-fork completed the ETC-ETH agenda making way for more valuable research and innovations to come.


The vast majority of the network hash is onboard Phoenix with a fraction of hash still on the old chain, but slowly decreasing as seen here.


Major exchanges, wallets, infrastructure providers, and other services are updated for Phoenix. Of course, check your apps for updates and ensure the services you use are Phoenix updated.

Core-geth, OpenEthereum, and Multi-geth Phoenix releases are in sync, but Hyperledger Besu became out-of-sync during the activation. Since Besu is not currently used by any services and rather known individuals (devs), then this client’s issue is not negatively impacting the network.

Secure your nodes post Phoenix

We understand a lot of ETC consumers were dependant on the Parity Ethereum client. However, Parity Ethereum is no longer maintained by Parity Tech and moved onto a community-managed OpenEthereum project. Multi-geth is also now a community-managed project. As the Parity Ethereum client family and Multi-geth have no solidified Ethereum Classic support. You should consider migr...

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