Confidentiality: Ethereum prepares an overhaul of its transactions for 2027

Ethereum is preparing a major shift. After years dominated by the quest for scalability, native confidentiality is at the heart of the network roadmap. Toni Wahrstätter, researcher at the Ethereum Foundation, revealed the priorities studied for Hegotá, an update planned for 2027. Private transactions, resistance to censorship and architectural choices will now have to be arbitrated, while Glamsterdam remains expected at the end of 2026. Behind these technical decisions lies a strategic question: how far can Ethereum protect its users without compromising its scale?

Ethereum: the architecture of private transactions redesigned for the Hegotá hard fork

Toni Wahrstätter’s statements include a proposal for a profound restructuring of the transaction format of the second largest blockchain in the world. The Protocol Architecture team recommends giving top priority to EIP-8141, referred to as “Frame Transactions”coupled with the EIP-8272. These mechanisms directly target the weak point of current anonymization applications: the dependence on intermediaries for the payment of gas fees, who often compromise anonymity by tracing the origin of the funds.

By also integrating the “Transaction Assertions” (EIP-7906), which allow you to program guardrails on what a transaction is authorized to execute once submitted to the network, the Ethereum Foundation is laying the foundations for a new standard of interaction. As has summary Toni Wahrstätter on the X network: “with Frames, these mechanisms make it possible to create privacy funds capable of paying transaction fees themselves, thus removing the need for intermediaries”.

The contribution of this technical combination lies in the pure and simple elimination of third-party relays, until now essential for hiding users’ payment addresses during their interactions with confidential smart contracts. By qualifying the Frames of “much more expressive transaction format”researchers do not want to simply add an additional privacy module, but to rebuild the basic transactional experience of the entire ecosystem.

Currently, of the 66 proposals under study for the Hegotá hard fork, this package dedicated to autonomous transactions is pushed as the strategic priority to reconcile the base layer with the privacy requirements of the sector. This development would allow wallets to maintain granular control over order execution, thereby avoiding unintended exposure of wallet data on the public ledger.

This priority technical package is structured around three complementary improvement proposals:

• EIP-8141 (Frame Transactions): introduces a more expressive transaction format providing wallets with increased control over execution methods;
• EIP-8272 (Keyed Nonces and Recent Roots): allows privacy funds to pay their own fees directly without resorting to an external intermediary;
• EIP-7906 (Transaction Assertions): provides the ability to program preconditions and strict restrictions on the feasibility of a transaction after its submission.

The guarantee of protocol inclusion in the face of the risk of censorship

Alongside the fee payment overhaul, Hegotá’s architecture incorporates a critical defensive component with the EIP-7805, known as “Fork-Choice Enforced Inclusion Lists” (FOCIL). To date, FOCIL is the only proposal officially confirmed and locked into the 2027 update.

This mechanism forces validators to integrate a list of eligible transactions or risk having their blocks rejected by the blockchain consensus rules. The association of this inclusion constraint at the protocol level with the “ Frame Transactions » creates an unprecedented defensive synergy for confidentiality. Toni Wahrstätter expressly stated this: “with FOCIL support, confidential transactions also benefit from inclusion guarantees directly at the protocol level”.

This reorientation of priorities is part of an overall framework dictated by the long-term vision of Vitalik Buterin, who has strengthened his requirements for native privacy, quantum resistance and simplification of the main layer. Developers plan to absorb state growth by preparing the network for a gas limit climb toward thresholds of 500-600 million, while testing separation of block access list data from the execution payload and deployment of optional zkEVM proofs to the mainnet.

However, the feasibility of this roadmap relies on very rigorous delivery schedule discipline. In a message to the community, Toni Wahrstätter stressed the need to make drastic choices: “An update cannot be a simple wish list put together by the community or core developers around what Ethereum should ultimately become. Instead, we need to decide what Ethereum should become in the next phase, and determine what will have to wait..

In a context of increasing global regulatory requirements, these technical arbitrations lay the foundations for a fundamental compromise for decentralized finance. The combined integration of FOCIL and Frames provides a structural response to filtering threats at the block constructor level, while avoiding weakening base layer security. If this trajectory is confirmed by 2027, Ethereum could succeed in reconciling operational compliance and preservation of privacy on a large scale.

Massive scaling up, quantum resistance and calendar trade-offs until 2029

Beyond just questions of anonymity and block validation, Ethereum’s overall roadmap includes a profound restructuring of its economic and cryptographic equations. The researchers plan to adapt resource pricing and the cost of storage in the face of the gas surge, while beginning the transition to post-quantum algorithms.

As early as February, Vitalik Buterin clarified the need to spread this structural transformation until 2029 in order to isolate the consensus from future quantum computing capabilities. Exploratory work around optional zkEVM proofs on the mainnet aims to validate execution without increasing the load on validator nodes.

In terms of execution, developers refuse to commit the network to projects that are out of control and could paralyze the deployment schedule. Toni Wahrstätter recalled the strict time constraints faced by the teams: “We’ve been working on Glamsterdam for 256 days today, with the goal of deploying this update by the end of the year. Hegotá will have to be deployed in 2027, and it is precisely this timetable that makes the next decisions so decisive..

The researcher also warned the community:“we can’t do everything at once while hoping to meet deployment deadlines”confirming that the majority of the 66 competing proposals will have to wait for subsequent rounds.

This ongoing arbitration for Hegotá reveals the maturity of a protocol which refuses technical disproportion in favor of controlled industrial execution. By setting a clear course as the Glamsterdam project reaches its decisive stages, the Ethereum Foundation demonstrates that privacy and resilience should no longer be treated as superficial add-ons, but as fundamental properties of consensus. If the teams manage to integrate this package without delaying the deployment planned for 2027, Ethereum could definitively neutralize the risks of censorship while offering institutional players the confidentiality guarantees essential to the deployment of their capital.