Ethereum is preparing for a major change that could significantly impact the network's efficiency and security. Co-founder Vitalik Buterin, along with researcher Toni Wahrstätter, has proposed a new EIP-7983 that sets a maximum transaction gas limit at 16.77 million.


🔹 Why this change?

The goal is to prevent network overload and protect against DoS attacks. According to the proposal, a single complex transaction can currently consume an entire block, leaving no room for others. This creates a vulnerability that attackers could exploit.


🔹 New limit: 16.77 million gas (2²⁴)

This carefully calculated cap strikes a balance – it still allows for complex transactions such as smart contract deployments and advanced DeFi operations, while keeping the network stable and predictable. Any transaction exceeding the limit will be rejected with a specific error.

🛡️ Protection from Attacks and a More Stable Network

Lowering the limit brings several key benefits:

🔹 Improved defense against DoS attacks:

Prevents a single transaction from monopolizing the block.

🔹 Greater zkVM (zk-SNARKs) testing efficiency:

Smaller transaction fragments improve parallelization and zero-knowledge proof testing.

🔹 More equitable gas distribution across transactions:

The new design favors fairer use of block space.

Unlike the earlier EIP-7825 proposal, which suggested a 30 million gas cap, Buterin and Wahrstätter opted for a more conservative approach. While developers generally supported the original proposal from November 2024, many were already advocating for a tighter limit.

💡 What Does This Mean for Users?

If implemented, any transaction exceeding the 16.77 million gas limit will be rejected at the processing stage. This enforcement will apply regardless of the block gas limit set by validators.

According to EtherScan, the current average gas price is about 0.266 gwei. That means a transaction using the full proposed gas limit would currently cost around $11.38, assuming ETH is priced near $2,550.

🔮 Outlook

This proposal is a step toward greater Ethereum security, stability, and efficiency. If accepted, it will change how the network handles complex transactions and prepare it for future scaling—particularly in zk-rollups and parallel execution models.



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