introduction
Evolution is important for progress and development. Cryptocurrency with idle community and network meets a bitter end. In terms of reliability, the coin that comes to our mind after Bitcoin is none other than Ethereum. Released on 30th In July 2015, Vitalik Buterin and his team of co-founders, Ethereum, impressed traders around the world with their continued activity. More than a decade ago, no one would have imagined that $ETH would boast a staggering market capitalization of $54.4 billion. With this much volume, it proudly sits at 22n.d. Spot on global donkey list by market capitalization.
Previous Ethereum upgrade
1. Merge (2022)
Ethereum has undergone various upgrades since its emergence. In September 2022, the merge resulted in the migration of $ETH from Proof of Occupation (POW) to Sport-of-Stake (POS) mechanisms. This made the network extremely energy efficient.
2. Dencun Upgrade (2024)
The 2024 DenCun upgrade was an optimized Ethereum layer 2 project that previously had to post a lot of data about Ethereum. The upgrade allowed us to send data blobs to Ethereum. Ethereum has since become more scalable.
3. Pectra Upgrade (May 2025)
Flexibility was introduced in May 2025 with the Pectra upgrade. It gave more control to validators in terms of stake management, withdrawal, and adjustment. Pectra upgrade makes handling data blobs easier.
Fusaka upgrade (December 2025)
The secret to Ethereum’s success lies in its constant efforts to become faster and more scalable. At the end of 2025, a scheduled upgrade titled Fusaka is set to allow Ethereum to process more transactions faster and more efficiently. Fusaka is a major network upgrade aimed at increasing the block gas limit from 45 million to 105 million. With each new block added, the network processes more transactions and manages smart contracts more easily than it currently does.
technical improvements
To the man on the street, it’s just a change in speed. However, under the hood there are two technical improvements. Let’s say you have a large warehouse where inspectors have to check every bag of articles that arrives. Although safe and reliable, this method is very tedious. If a bar or QR code containing information about all the articles inside is available on the parcel, the inspector’s work is reduced by less than half. You can see some random items among the articles listed in the code data. All warehouse inspectors can access the data using the code. So we check some random articles from every parcel we receive. Aggregate validation efforts to ensure data is valid.
Similarly, imagine Ethereum as a large warehouse with many validators working. Despite the fact that Dencun and Pectra have made reading and transferring data smoother, validating data blobs is still quite a task. A Verkle tree works like a QR code and encapsulates all the data within a BLOB. Data analysis becomes much more convenient for validators. Peer Data Availability Sampling (PEERDAS) allows all validators to check random data bits for validity.
This combination of Pilda and Verkle Tree is set to make Ethereum much better than it currently is. Validator nodes will be less burdened and the number of validators around the world will increase. As the number of validators increases, the network becomes increasingly smooth.
The importance of upgrading your fursaka
While using social media, you may have come across posts complaining about network congestion and the resulting sluggishness of the Ethereum network. This can often happen during busy times. Deals are confirmed later than expected, causing gas prices to rise.
What the Fusaka upgrade aims to achieve is data compression and increased block size. This is made possible by each block carrying more transaction data, allowing more transactions to be executed and verified.
Additionally, Layer 2 projects benefit greatly from Fusaka upgrades. These projects are responsible for posting transaction data on the Ethereum chain. As facilitated by the Dencun upgrade, the Fusaka upgrade will easily add to it by carrying much more data than it currently carries.
Finally, as already mentioned, the Peerdas System allows to check all validators randomly. Distribution of workload among baritters leads to reduced hardware strain. As a result, the number of validators is expected to increase. The more validators there are on a network, the more secure it is. Therefore, the Fusaka upgrade indirectly contributes to making the network more secure.
Fusaka upgrade timeline
The Fusaka upgrade is expected to be completed in December 2025, but deployment is planned in various stages. It will be tested first on Horesky’s testnet (October 1, 2025), then on Sepolia (October 14), and later on Hoodi (October 28). These dates can change depending on testnet results.
This step-by-step launch has three purposes. Developers can check the performance of their upgrades. They could see if the speed and efficiency claims held up. Second, testers check the stability of the upgrade. Many technological upgrades make noise about innovation, but somehow fail to consistently deliver the claimed performance. This testing also allows developers to report bugs and troubleshoot issues.
The Ethereum Foundation understands how important it is to successfully launch upgrades and to be bug free. With this in mind, they announced a hefty reward of $2 million for anyone who identifies a major vulnerability within their network. The program is set to begin four weeks before the main launch.
conclusion
Upgrades make your network safer, more secure, faster, and more efficient. This is even more relevant in blockchain technology and cryptocurrency projects. Ethereum is 2n.d. The Fusaka upgrade for the world’s largest cryptocurrency is scheduled to be activated in December 2025 and is set to reduce network congestion for users and ease the burden on baritters.
FAQ
What is an Ethereum Fusaka upgrade?
The Fusaka upgrade, scheduled for December 2025, is a major Ethereum network update designed to increase scalability and efficiency by increasing the block gas limit from 45 million to 150 million.
How does Fusaka improve Ethereum performance?
Fusaka introduces two key technologies: Verkle Trees and Peer Data Availability Sampling (Peerdas) to make data validation faster and lighter for verifiers. It also reduces network congestion and improves overall scalability.
When will Fusaka upgrades be tested and launched?
Testing will begin in October 2025 on the Horesky, Sepolia, and Foodi testnets, with mainnet launch planned for December 2025 depending on test results and bug fixes.