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Ethereum completed its most aggressive capacity expansion of 2025 on Wednesday, activating the Fusaka hard fork to immediate market applause. The upgrade, a fusion of the Fulu consensus and Osaka execution layers, fundamentally alters the network’s scarcity model by increasing data throughput eightfold without sacrificing decentralization.

Ethereum is set to activate the Fusaka upgrade on Dec. 3, marking a significant step in the network’s ongoing improvements. The aims to make Ethereum faster, more efficient, and more secure for developers, users, and infrastructure providers alike.

Ethereum has executed its most significant base-layer scaling maneuver in four years, raising the network’s block gas limit to 60 million. The 33% capacity increase, ratified by validator consensus this week, marks a strategic shift from “L2-only” scaling to a hybrid model where the mainnet itself expands to support a surging ecosystem.

Ethereum is showing signs of renewed stability after weeks of pressure, with traders watching whether the asset can build momentum above nearby resistance levels. The market is also preparing for the Fusaka upgrade, which is expected to enhance Ethereum’s data capacity and improve the performance of rollups. This combination of technical progress and improving short-term price action has created a more active trading environment as the year nears its close.

Ethereum’s short-term pullback has placed it in a crucial technical zone after its recent rally to $4,768. The current price near $4,339 reflects a controlled correction rather than a full reversal, with traders closely watching Fibonacci retracement levels and the next major network upgrade. The market’s reaction around $4,294 and $4,406 will likely define the next phase of momentum as investors balance technical signals and network fundamentals.

Ethereum’s core developers have set December 3, 2025 as the tentative mainnet date for the Fusaka upgrade.