The next major upgrade of Ethereum, Fusaka, is expected to launch in November with a focus on improving performance and security behind the scenes, instead of adding new functions for users.
Summary
- The next major upgrade of Ethereum, Fusaka, will go live at the beginning of November, bringing a number of technical improvements under the hood.
- In contrast to recent upgrades that have introduced user -oriented functions, it focuses on stimulating performance, scale and junction protection.
- It is part of the faster release cycle of Ethereum and wants the network to work smoothly as the demand grows.
The following protocol -Upgrade of Ethereum, Codenaam Fusaka, is introducing its latest test and planning phases, with a Mainnet activation planned for the beginning of November 2025 for the time being.
Arriving approximately six months after the Pectra Hard Fork, Fusaka continues the accelerated upgrade gifts from Ethereum and focuses on improvements behind the scenes focused on improving performance, scalability and junction farm, especially for customer developers and infrastructure providers.
In contrast to Pectra, which provided user -oriented positions, such as account abstraction and higher validation limits, Fusaka Slim Contract behavior will not change. Instead, the 11 Ethereum improvement proposals bundles that refine core protocol parameters, improve security and optimize gas efficiency.
Who suggested and why
One of the most important proposals, EIP-7825, helps to protect nodes against overwhelmed by spam or harmful messages. Another important change on the table is to increase the block gas limit to 150 million, so that more transactions can fit into each block, but it is also supplied with considerations such as slower block spreads and more voltage on the data storage of the network.
Although EIP-7907 Die was aimed at double the limit of the contract code size and new rules for Gas measurement in the introduction, it was ultimately dropped to prevent delays. It can be revised in a future fork.
https://twitter.com/nixorokish/status/19452800528555283911
Community votes have also weighed. Ethereum Protocol Support member Nixo has insisted The team to adhere to a strict time schedule, so that Fusaka lands before DevConnect, an important developer conference, emphasizes the importance of timely customer releases in the following month and a half.
What’s in the box
Here is a biting look at some of the head functions that Fusaka will bring:
- Higher gas limit. Increasing the block gas limit to 150 million units, so that each block can contain more transactions. This helps to lower costs and accelerate the network under the heavy demand.
- Boosts security (EIP – 7825). New checks to protect against certain attack patterns, making nodes more robust and reduce the risk of network disruptions.
- Codegroate and measuring adjustments. Although EIP – 7907 – which would double the limit of the code size and add new gas costs – was drawn to test test, future forks could possibly visit it again.
In general, these changes will not be noticeable of the way in which most smart contracts work. Instead, they will help the network to handle more traffic in a safer and more efficient way.
How did we get here?
Ethereum follows an upgrade cycle of approximately six months. The last big fork, Pectra, went live in May, with functions such as account abstraction and higher deployment limits. Shortly after the release of Pectra, the discussions about the next step started and Fusaka stood to the top of the list in mid -2025.
Behind the scenes, the Allcorevs meetings of Ethereum debated, regular meetings of protocol teams, with which they bundle. On August 1, the last set of EIPs for Fusaka will be confirmed and frozen, so that customer teams can bake for a month or two in the changes. The Upgradepad of Ethereum for Fusaka looks like this:
- Devnet launch. The first network with only developers only went live half past six, so that researchers and junction software teams can test new code in a controlled setting.
- Public test nets. Two public test nets are planned for the end of September and October 2025 and open the door to wider community tests and bug adhesion.
- Mainnet Hard Fork. Apart from any major setbacks, Fusaka is planned to activate on the Ethereum Minnet at the beginning of November, ideally before the DevConnect conference in Buenos Aires (November 17-22).
If everything goes smoothly, developers will count test results in November and roll out the upgrade at a pre -announced block height, so that all nodes together upgrade.
In the long term, users remain on block chains that are fast, cheap and safe. Fusaka is not a big overhaul, but it is a meaningful step to help Ethereum stay competitive with faster chains and low-2s. By increasing capacity and strengthening the defense, the network could make the network more hospitable for Defi apps, games and other use cases.