#Fusaka What is the upgrade all about?? Understand the main content in one minute.👇🏼👇🏼

Fusaka is the 17th major upgrade of #以太坊 , scheduled to be activated on the mainnet on December 3, 2025! This upgrade has brought significant benefits to many Ethereum users and developers. I hope $ETH also sees a rise.

I will summarize without going into technical details, along with easy-to-understand examples. This upgrade has several major changes, as follows:

1️⃣ PeerDAS uses a "sampling verification" method, allowing nodes not to store all blob data, significantly reducing hardware burden, while enabling Ethereum to support more L2 data volume (theoretically increased by about 8 times). This is a key change to improve Rollup throughput while maintaining node operability.

🌰 Example:

Previously, the teacher had to correct all 100 assignments in full (look at each one).

Now it has changed to: randomly checking a few questions from each assignment; if the checked ones are correct, the entire assignment is considered correct.

💡 The teacher (node) has a significantly reduced burden but can handle more students (Rollup data).

2️⃣ Fusaka increases the overall gas limit of the block (target 60 million), allowing the network to process more transactions at once. Meanwhile, EIP-7825 sets a maximum of 16.78 million gas for each transaction, preventing a single transaction from occupying all block resources, thereby improving throughput and DoS protection capability.

🌰 Example:

Expanding the restaurant kitchen (increasing block gas limit) allows for more dishes to be prepared simultaneously. But at the same time, it is stipulated: a table of guests can order a maximum of 10 main dishes (single transaction gas cap) to prevent one table from occupying the entire kitchen, causing other guests to be unable to be served.

3️⃣ EIP-7951 allows Ethereum to support native device signatures and Passkey (FIDO2/WebAuthn), enabling wallets to directly use the hardware security chip of a mobile phone/computer. Users can log in, recover, and perform multi-factor authentication just like using regular applications, without relying on seed phrases, significantly improving security and usability.

🌰 Example:

Previously, logging into a crypto wallet required remembering a long string of "secret spells" (mnemonic phrases), and losing it meant game over.

Now it has changed to: directly verifying with mobile fingerprint/face/system passkey like logging into Gmail or Apple ID.

If you learned a little bit, please like and follow.🙏🏻