Key takeaways
What Makes the Fusaka Upgrade Significant for Ethereum?
Fusaka introduces PeerDAS and a 5x block gas limit increase, with the aim of increasing scalability and data throughput.
How is the Ethereum market reacting to the Fusaka upgrade announcement?
Despite the upgrade news, ETH remains under bearish influence, trading below key EMAs with bearish momentum.
Since its launch, Ethereum (ETH) has undergone a series of upgrades to improve security, scalability and sustainability.
Since 2020, Ethereum has made five major upgrades to move to proof-of-stake, including Merge, Spella, and EIP-1559.
In the latest development, the network’s developers have set their sights on upgrading Fusaka Mainet.
Fusaka mainnet launch planned for December
In a significant and decisive move, Ethereum developers locked down the mainnet launch for the Fusaka upgrade in December.
During the All Core Developers Consensus (ACDC) call on October 30, the team made the date final following the success of Fusaka on the Hoodi testnet on October 28.
In early October, the highly anticipated Fusaka upgrade was successfully deployed to the Holesky and Sepolia testnets. Each deployment was closely monitored to assess the stability, timing, and overall performance of the validator, paving the way for a full mainnet launch.
After its release, Fusaka will present a dozen Ethereum Improvement Proposals (EIPs) aimed at improving the network’s efficiency, speed, and security.
This is the most significant upgrade to Ethereum since the Pectra update in May 2025 and paves the way for the next phase of Layer 2 integration.
Main characteristics and expected developments
Significantly, the Fusaka upgrade includes several new features that set it apart from previous versions.
First, the core functionality is Peer Data Availability Sampling (PeerDAS), which helps validators access and verify data efficiently. PeerDAS was due for an upgrade from Pectra, but was delayed to allow for more testing.
Another significant improvement for Fusaka is the increase in the block gas limit from 30 million to 150 million units. This addition will improve Ethereum’s transaction capacity and double the throughput of blob data.
With these upgrades, the core development team hopes to push Ethereum toward its core goal of low-cost scalability and high throughput.
How is the ETH market doing?
Strangely, even after the announcement of the long-awaited upgrade, Ethereum’s market structure remains weak, with bearish dominance.
After breaking through the $3.8K support, ETH fell to a low of $3.6K before rebounding to a high of $3,873. At press time, Ethereum was trading at $3,842, down 1.72% on the daily charts.
It is important to note that this decline is mainly due to increased selling pressure. According to CryptoQuant data, Ethereum Exchange Netflow has remained positive over the past two days.
Source: CryptoQuant
Typically, increased selling activity creates strong downward pressure, often signaling a potential price decline.
Consequently, the altcoin fell below its short-term exponential moving averages (EMA). Simultaneously, the strength of its sequential pattern declined to -9.33, suggesting the emergence of a pattern marked by progressively lower highs.
Source: TradingView
These market conditions indicate an exhausted uptrend, with short-term downside potential. Therefore, if current conditions persist, ETH will surpass $3.8k and find support at the 200 EMA around $3,601.
Conversely, if the recent decline creates a buying window, bulls will target the 50 and 100EMA at $3,988 and $4,089, respectively.
