Benefits of Fusaka Upgrade and upcoming Glamsterdam Upgrade!

The latest Ethereum upgrade, Fusaka, was implemented earlier this month on December 3 2025.

Fun fact: The name Fusaka originates from a combination/blend of 2 code names: Fulu from the Consensus Layer and Osaka from the Execution layer, combining into Fusaka!

Fusaka Upgrade had many notable benefits to improve throughput, scalability, and reduced fees, all of which is a huge plus for users like you and me!

1.      PeerDAS or Peer Data Availability Sampling (EIP-7594) allowed nodes on the Ethereum chain to “sample” parts of data blobs compared to pre-Fusaka Upgrade which had to view the entire full data blob. For the technical folks here, the data sampling is about 12.5% per node! How does this affect the chain? Well, throughput of data increased by up to 8 times and also improved the node storage and bandwidth by about 85%! This is huge for both current and future scalability!

2.      Gas limit for blocks were increased (EIP-7935 & EIP-7825) from about 45 Million to 60 Million gas per each block, with a transaction gas limit maximum of 16.78 Million gas per each transaction. So why should users care about increasing gas limits for blocks and transactions? Well, the increase in block gas limit is for continued scalability and the transaction gas limit will ensure that 1 transaction cannot use 1 entire block to make the Ethereum chain super durable. Just imagine, an entity creating a super large smart contract or a super convoluted DeFi pathway to take control of an entire block to start a DoS (Denial-of-Service) cyberattack! Trust me, we definitely want to avoid that at all costs. MOST IMPORTANTLY, we get cheaper transactions haha. Anything to make gas fees and transaction costs cheaper, I’m all for haha.

3.      Passkeys (EIP-7951) were added with the Fusaka Upgrade. The idea with the UX upgrade is to support secp256r1 and allow WebAuthn and biometric wallets. This should make it much easier for new user onboarding and wallet recovery without needing a seed phrase, similar to many of the modernized applications we use today. I truly love this upgrade because everything really needs to be simpler for mass adoption.

4.      I am a huge fan of the stabilization of blob fees (EIP-7918) which makes Layer-2 chains pay proportionately to node activity with a floor of the fee. This really didn’t make sense to me or how it would be helpful for users, but after more research, I found it super important to stabilize blob fees because this upgrade links the base fees for the blob straight to the execution gas fees. BOOM, less volatility and anomalies for fees!

https://x.com/Optimism/status/2005687491626508729/photo/1

If you are interested in learning more details about the Fusaka Upgrade, I personally recommend reading about each EIP from Ethereum https://ethereum.org/roadmap/fusaka/

I am super hyped for the upcoming Glamsterdam upgrade which is planned for the end of the first half of 2026.

Fun fact: The Glamsterdam Upgrade name originates from Gloas for Consensus and Amsterdam for Execution, blending together to create the Glamsterdam Upgrade!

https://preview.redd.it/ch4iiihemeag1.png?width=936&format=png&auto=webp&s=664f158a51096acd05eaf988a612b47283b2a9d7

I’m most excited for full roll-up scaling which will affect gas cost. Fusaka Upgrade made changes to the blob fees, but Glamsterdam Upgrade will not affect the blob fees. However, it will affect us in another way by making the gas costs more predictable and accurate which will greatly benefit us in each and every transaction we plan to make!Similar to Fusaka, Glamsterdam will further plan to increase gas limit of blocks and also to improve the capacity of data blobs for increased throughput and roll-up scalability.

Overall, we should expect increased throughput, accurate gas costs, and improved decentralization.

Bankless does a great review of Fusaka and Glamsterdam Upgrades in their podcast as well which I highly recommend as well. You can watch/listen here: https://x.com/Bankless/status/1956017743289020633?t=502

What are your favorite Fusaka Upgrades and which Glamsterdam Upgrades are you most excited for?