Vitalik Buterin has revealed three significant updates to Ethereum, which could shape the network’s future development.
The next stage of Ethereum’s development will be shaped by a series of immutable rules and protocol limits that will be introduced in the future. These structural changes will strengthen the network, simplify operations for clients, and prevent various types of DoS attacks.

Ethereum has a clear path forward.
Looking back at the past few years, we can see a clear trend: Ethereum is moving towards imposing strict and predictable restrictions on individual transactions or block functionality. And this trend will continue to accelerate.
Preparations have already been completed. In 2021, EIP-2929 and 3529 increased the gas fees associated with the SLOAD instruction and reduced the amount of refunds, thereby reducing excessive disk I/O usage and preventing spam-like behavior based on refunds. In 2024, Dencun’s weakening of the SELFDESTRUCT instruction eliminated one of the most exploitable instructions in the EVM, thus bridging the gap in complexity. Now, in 2025, a hard limit of 16777216 gas per transaction has been implemented, eliminating the possibility of high-density transactions that could lock out nodes or cause unpredictable pressure on clients.
Each of these restrictions reduces the attack surface, bringing Ethereum closer to a system where worst-case behaviors are strictly regulated.
Three paths…
The first approach… It limits the number of contract code bytes that can be accessed per transaction. In the short term, this means that calling large contracts will become more expensive. In the medium term, this approach can standardize contract size, eliminating the need for extreme cases where a single call consumes tens of millions of bytes of data. This, in turn, could drive the ecosystem towards a binary tree structure and block-based billing models.
Secondly, Ethereum requires restrictions on the cycle of ZK-EVM verifiers. As ZK-based Layer 2 protocols become more popular, re-pricing verifications becomes increasingly important. Without restrictions, block builders could exploit the consensus layer by introducing excessive computational overhead into verifications. By limiting computational overhead, the network can benefit from safer Layer 2 growth and more predictable verification costs.
Thirdly, memory prices will change. Although EVM memory expansion is currently somewhat limited, attackers can still force clients to operate in unfavorable conditions. Each client team can easily model worst-case scenarios, and since memory usage limits are more transparent, execution engines become simpler.

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