Ethereum core developers have begun filtering 66 Ethereum Improvement Proposals tied to the Hegotá upgrade, a planned hard fork focused on embedding native privacy primitives into the protocol. The proposal set spans zero-knowledge proof verification precompiles, stealth address standards (ERC-5564), encrypted transaction formats, and private state access patterns. EIP editors confirmed the review sprint started during the All Core Devs execution layer call on August 8, with a specification freeze targeted before Devcon in November.
What the vote decides
The upgrade's final scope will determine whether privacy tooling lives at the application layer or becomes a first-class protocol feature. Proponents of protocol-level integration argue that base-layer precompiles for ZK-SNARK verification reduce gas costs by up to 80 percent compared to contract-based verifiers, citing benchmark data from the Privacy & Scaling Explorations group. Opponents warn that baking specific cryptographic assumptions into the consensus layer creates ossification risk if those primitives are later broken or superseded. The EIP-7549 committee, formed in March, has cataloged 23 distinct privacy-related EIPs across four categories: identity, transaction privacy, state encryption, and compliance tooling.
| Compliance tooling | 9 | Chainalysis, Elliptic contributors |
Developers have clustered the proposals into three implementation tracks. Track A bundles precompiles and stealth addresses for a potential early-2027 activation if testing on the Holesky testnet completes by Q4. Track B defers encrypted transaction formats to a subsequent fork, citing unresolved gas metering questions for variable-length ciphertexts. Track C reserves compliance-oriented EIPs — including selective disclosure proofs for regulated DeFi — for a separate governance process involving the Ethereum Foundation's legal counsel. The All Core Devs call on August 22 will vote on track assignments, with a simple majority of client teams required for inclusion.
Token and user impact if it passes
ETH traded at $1,878 with a 24-hour volume of $2.78 billion and a market capitalization of $226.65 billion, CoinGecko data shows. A protocol-level privacy upgrade could shift gas demand toward ZK-heavy workloads, potentially increasing blob space consumption on rollups that adopt the new precompiles. Staking yields remain unaffected by the specification changes, though validators will need to upgrade client software before the fork block. Wallet implementers including MetaMask and Rainbow have signaled support for stealth address integration once the ERC finalizes.
Timeline — vote close, activation, fallback
The next decision gate is the All Core Devs call scheduled for August 22, where client teams will vote on the three-track proposal. If consensus forms, the specification freeze targets September 15, followed by a Holesky testnet deployment in October. Mainnet activation would target the first quarter of 2027, contingent on successful shadow forks and a security audit by the Ethereum Foundation's bug bounty program. Should the vote deadlock, the fallback is a minimal Hegotá scope limited to EIP-7549 (ZK precompiles) only, pushing stealth addresses and encrypted transactions to the subsequent Osaka upgrade.