The Ethereum development team plans to stop Holesky testnet support by September 2025, thus concluding its duties in testing network upgrades.
Due to validator exit delays and congestion issues, Holesky testnet will be phased out and replaced by Hoodi testnet from March 26, 2025.
Hoodi testnet will be responsible for testing validator-related features, including the Pectra upgrade, and is expected to remain operational until 2028.
Holesky testnet will stay active until September 2025 for further testing of specific features required for the Pectra upgrade, after which it will be shut down.