Ethereum Foundation Announcement: Fusaka Mainnet Upgrade Scheduled for Activation on December 3, 2025
Correction：Classification and topic tags were corrected under the website section rules; the body and review decision remain unchanged.
An Ethereum Foundation announcement states that the Fusaka upgrade is scheduled to activate at mainnet slot 13,164,544, focusing on improving L1 performance and Blob throughput.
The source text is not available for this article. The extracted points are shown below.
Key points
Fusaka follows this year's Pectra upgrade, representing a major step forward in Ethereum's scaling roadmap that improves L1 performance, increases blob throughput, and enhances user experience. The Fusaka network upgrade is scheduled to activate on the Ethereum mainnet at slot 13,164,544 (December 3, 2025, 21:49:11 UTC). Fusaka also introduces...
AI-assisted interpretation
The following is analysis, separate from reported facts. Verify important claims independently.
No additional explanation is available beyond the summary.
Why it matters to readers
The information comes from Ethereum's official website and clearly states the upgrade name, mainnet slot, and scheduled activation time. The upgrade directly concerns Ethereum base-layer performance and data availability, but the provided material only confirms the official plan and gives no actual activation result.
Watch for subsequent official information and do not make decisions based on a single report.
Risks and unknowns
- Mainnet client versions and node upgrade readiness
- Whether activation at slot 13,164,544 completes as scheduled
- Changes in Blob capacity, fees, and network stability after the upgrade
- Whether client failures, chain splits, or emergency fixes occur
Related Developments
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