Client Implementations

Multi-client architecture following best practices in client execution and enterprise-grade features.

Fukuii

Primary

The primary Ethereum Classic client for the Olympia upgrade. Built from the ground up to support the full Olympia feature set with a focus on long-term protocol stewardship.

GitHub Releases Docs

Core-Geth

Maintained

Two security releases shipped (v1.12.21, v1.12.22) addressing CVE mitigations and DNS discovery updates. The established mainnet client continuing in a maintenance role alongside next-generation implementations.

GitHub Releases Docs

ETC Plugins

ETC compatibility layers for major upstream clients — bringing Ethereum Classic support to the broader Ethereum client ecosystem without maintaining full forks.

Besu

Plugin

A plugin that adds ETC support into the Besu codebase.

Releases Docs

Erigon

Plugin

A plugin that adds ETC support into the Erigon codebase.

Releases Docs

Go-Ethereum

Plugin

A plugin that adds ETC support into the Go-Ethereum codebase.

Releases Docs

Nethermind

Plugin

A plugin that adds ETC support into the Nethermind codebase.

Releases Docs