Ethereum Fusaka Upgrade Rolls Out Key Testnet Features
Quick Take Summary is AI generated, newsroom reviewed. Ethereum’s Fusaka upgrade is now live on the Hoodi testnet for testing. Mainnet launch is scheduled for December 3, 2025, with improved security and scalability. Key features include PeerDAS, increased blob capacity, and network stability improvements. Users can expect faster transactions, lower fees, and a more reliable Ethereum network.References Ethereum's Fusaka fork goes live on Hoodi testnet, setting the stage for Dec. 3 mainnet launch with secur
Ethereum has reached an important milestone, as reported by Cointelegraph. The Fusaka upgrade is now live on the Hoodi testnet. This is a practice network where developers can test changes before going live on the main Ethereum network. The mainnet launch is said to be planned for December 3, 2025.
⚡️ UPDATE: Ethereum's Fusaka fork goes live on Hoodi testnet, setting the stage for Dec. 3 mainnet launch with security and scalability improvements. pic.twitter.com/ZQO7Kk7yWr
— Cointelegraph (@Cointelegraph) October 29, 2025
This is exciting news for anyone using Ethereum. The upgrade focuses on making the network faster, safer and able to handle more users and applications.
What Fusaka Does
Fusaka is not about flashy features. Instead, it improves the network in ways that most users will notice indirectly. The main goals are speed, security and efficiency.
For example, the upgrade introduces Peer Data Availability Sampling (PeerDAS). This helps nodes check data without downloading everything. It also saves time and computing power.
Moreover it increases the size of blobs, the data packets used by layer‑2 applications like rollups. This means Ethereum can handle more transactions at once.
Some riskier changes, such as certain Ethereum Improvement Proposals, have been delayed. The focus is on making the network more stable and reliable.
Testnet Timeline
Ethereum is following a careful plan to make sure everything works. First, upgrades go to smaller testnets, then bigger ones, before reaching mainnet.
- Holesky testnet: early October
- Sepolia testnet: shortly after Holesky
- Hoodi testnet: now live
- Mainnet: December 3, 2025 (tentative)
This phased approach allows developers to find bugs and fix them before the mainnet. It also gives users confidence that the network will run smoothly.
What This Means for Developers and Users
Developers will need to update their software to support Fusaka. They also need to test their applications to make sure they work with the new system. The larger blob size and PeerDAS feature mean some changes for nodes and layer‑2 apps.
For regular users, the upgrade should bring faster transactions and lower fees. Most importantly, funds and smart contracts remain safe. Fusaka is backward compatible, which means users don’t have to worry about losing their crypto.
Next Steps for Ethereum Scaling
After Fusaka, Ethereum plans to increase blob capacity further with follow-up updates. This is part of the network’s long-term roadmap to handle more users, more transactions and bigger applications.
The Ethereum Fusaka upgrade shows that Ethereum is growing. It is becoming faster, safer and more capable of handling global traffic. It also makes the network more efficient for developers building applications on Ethereum.
Fusaka’s Impact on the Network
Ethereum’s Fusaka upgrade is an important step forward. The testnet launch on Hoodi allows developers to test the system safely. If all goes well, the mainnet launch in December will improve speed, lower fees and make Ethereum stronger.
For developers, it means updating and testing applications. While for users, it means a smoother and more reliable Ethereum experience. Fusaka is another step in Ethereum’s journey to become a fully scalable and safe blockchain for the future.
Disclaimer: The content of this article solely reflects the author's opinion and does not represent the platform in any capacity. This article is not intended to serve as a reference for making investment decisions.
You may also like
9 Reasons Bitcoin Crashed From $81K to $67K in Just 10 Days
Nvidia earnings report and Anthropic trillion-dollar IPO coming in succession! The bigger test for AI trading is next week
The aftershocks of Jensen Huang's resignation have not subsided, and next week the AI sector faces a "double test": Nvidia's first financial report in the "post-Huang era"—if the performance falls short of expectations, the market's punishment will be intensified; Anthropic is launching its IPO with a trillion-dollar valuation. Two major uncertainties are looming, which will directly determine whether global capital's faith in AI can be sustained.
Goldman Sachs Global Stock Market Outlook: AI Capital Expenditure to Peak Next Year, Earnings Growth to "Slow Down Significantly", Cloud Giants Become "Defensive Assets"
Goldman Sachs’ 2027 Global Equity Strategy points out that the AI capital expenditure boom is nearing its peak, and global profit growth will slow significantly. S&P 500 earnings growth is expected to drop from 36% to 11%, with depreciation pressures gradually emerging. However, cloud giants’ valuations have adjusted to a forward P/E of 19.7, lower than the staples sector, and are classified as “relatively defensive” assets. Goldman Sachs predicts an S&P 500 target of 8,700 points and suggests overweighting the US and Japan, while underweighting Europe.
With $135 billion worth of Nvidia stock, will Jensen Huang cash out?
After Jensen Huang stepped down, his Nvidia holdings of approximately 812 million shares, valued at $135 billion, became a major pressure on the stock price. Any reduction in holdings is subject to both legal and market constraints: shares can only be sold compliantly after the disclosure of any undisclosed negative information, and the volume is equivalent to six trading days’ total market transactions, meaning large-scale cashouts would have to be spread over several months.
Crypto prices
More
