Ethereum’s Fusaka testnet has achieved near-complete stability with 99 % validator participation, prompting developers to tentatively target December 9 for the mainnet activation. While not officially confirmed, this tentative schedule reflects growing confidence in the network’s readiness and successful multi-client testing.
- Fusaka Testnet Progress
- Tentative Mainnet Timeline & Scheduling Debate
- Holesky Shutdown & Validator Migration
Fusaka Testnet Progress
The Fusaka Devnet 3 continues to perform exceptionally well, reaching 99% client participation across all execution and consensus clients. As reported by Barnabas Busa, the latest Lighthouse rollout resolved all known issues, ensuring stable performance across the test network.
Sepolia’s first BPO 1 activated recently with a 15-blob cap, and BPO 2 is scheduled in approximately four days. The Hoodi fork will follow shortly, marking another step toward network finalization.
Tentative Mainnet Timeline & Scheduling Debate
During the All Core Devs Execution (ACDE) #223 call, Alex Stokes proposed December 9 as a tentative mainnet activation date, moved earlier from December 17 to avoid holiday-related slowdowns.
The Fusaka BPO timeline now anticipates BPO 1 on Dec 9 and BPO 2 on Jan 7, subject to Hoodi’s successful finalization. Developers broadly supported early scheduling for ecosystem predictability but emphasized that the timeline remains conditional on stable testnet performance.
A related proposal seeks to allow mainnet dates after one successful testnet, a shift from the current rule requiring all testnets to finalize first.
Holesky Shutdown & Validator Migration
The Holesky testnet is being phased out, with participation levels dropping to around 70%. Developers plan to officially decommission Holesky next Friday and have urged all validators to migrate infrastructure to Sepolia and Hoodi networks.
These two testnets will serve as the main testing grounds moving forward, ensuring smoother coordination ahead of Fusaka’s eventual mainnet rollout and the upcoming Glamsterdam planning phase.
While December 9 remains a tentative target, the high participation and stability observed across Fusaka testnets demonstrate strong readiness for Ethereum’s next major execution-layer upgrade. The proactive migration from Holesky, combined with coordinated testing across Sepolia and Hoodi, indicates that Fusaka is nearing completion.
If all goes as expected, the upcoming weeks could set the stage for Ethereum’s next mainnet evolution and a seamless transition toward the Glamsterdam upgrade.
If you find any issues in this blog or notice any missing information, please feel free to reach out at yash@etherworld.co for clarifications or updates.
Related Articles
- Ethereum Launches $2 Million Fusaka Audit Contest to Fortify Protocol Security
- Ethereum Developers Announce "The Weld" Repository Merger
- Ethereum Developers Target September 22 for Holesky Client Releases
- Ethereum Developers Face Blockers in Shadowfork Testing Ahead of Fusaka
- A New Playbook for Ethereum: Fusaka Rethinks Testnet & Mainnet Schedules
Disclaimer: The information contained in this website is for general informational purposes only. The content provided on this website, including articles, blog posts, opinions, & analysis related to blockchain technology & cryptocurrencies, is not intended as financial or investment advice. The website & its content should not be relied upon for making financial decisions. Read full disclaimer & privacy policy.
For Press Releases, project updates & guest posts publishing with us, email contact@etherworld.co.
Subscribe to EtherWorld YouTube channel for ELI5 content.
Share if you like the content. Donate at avarch.eth.
You've something to share with the blockchain community, join us on Discord!
