The Ethereum Fusaka upgrade, activated on December 3, 2025, at slot 13,164,544, introduced execution-layer refinements to enhance client performance and stability, paving the way for 2026 enhancements without major disruptions. Ethereum Fusaka upgrade boosts client synchronization and opcode handling for smoother operations. Post-upgrade, the network maintained over 995,000 active validators and 35.63 million ETH staked. [...]
