The Ethereum Foundation has announced a significant evolution in its strategic approach to protocol development, outlining key achievements in 2025 and detailing a new, refined organizational structure for its ambitious roadmap in 2026. This shift, building upon the foundation laid by the "Protocol" initiative introduced last June, emphasizes a unified approach to scaling, user experience enhancement, and core network hardening. The announcement highlights a year of substantial progress, marked by two major network upgrades and considerable advancements across all development fronts.
A Year of Transformative Upgrades: Pectra and Fusaka
The year 2025 proved to be exceptionally productive for Ethereum at the protocol level. The network successfully implemented two pivotal upgrades: Pectra and Fusaka. These upgrades were not merely incremental improvements but foundational shifts designed to enhance scalability, security, and usability.
The Pectra upgrade, deployed in May 2025, introduced EIP-7702. This Ethereum Improvement Proposal revolutionized how Externally Owned Accounts (EOAs) interact with the network by enabling them to temporarily execute smart contract code. This functionality unlocks a suite of powerful new capabilities for users, including transaction batching, which allows multiple operations to be bundled into a single transaction, significantly reducing gas fees and improving efficiency. Furthermore, it paves the way for gas sponsorship, enabling third parties to cover transaction costs for users, and introduces enhanced social recovery mechanisms, bolstering account security and user control.
Beyond user-centric features, Pectra delivered substantial scaling improvements. Blob throughput, a critical component for data availability and layer-2 scaling solutions, was effectively doubled. The maximum effective validator balance was raised to 2,048 ETH, optimizing validator participation and network security. Additionally, validator onboarding times were dramatically shortened, streamlining the process for new participants to join and secure the network. These enhancements collectively contributed to a more robust and performant Ethereum network.
Following Pectra, the Fusaka upgrade, released in December 2025, brought PeerDAS (Data Availability Sampling) to the mainnet. This innovative technology fundamentally alters how validators interact with blob data. Instead of downloading entire blobs, validators now sample them. This paradigm shift drastically reduces bandwidth requirements, a significant bottleneck for network expansion. The theoretical blob capacity of the network has been expanded by an order of magnitude, an 8x increase, setting the stage for even more significant data availability scaling in the future. Alongside Fusaka, two Blob Parameter Only (BPO) forks were deployed, initiating a strategic ramp-up from the initial six blobs per block towards higher, more ambitious targets.
Broader Network Advancements and UX Improvements in 2025
The impact of these upgrades extended beyond their immediate technical specifications. Between the Pectra and Fusaka upgrades, the Ethereum community collectively agreed to raise the mainnet gas limit from an initial 30 million to 60 million. This represents the first substantial increase since 2021, a testament to the network’s growing capacity and the success of scaling initiatives.
Another significant development was the implementation of history expiry. This crucial feature allows full nodes to prune pre-Merge data, resulting in substantial disk space savings – hundreds of gigabytes – for node operators. This makes running a full node more accessible and less resource-intensive, promoting greater decentralization.
On the user experience (UX) front, 2025 saw significant strides. The Open Intents Framework reached a production-ready stage, aiming to simplify complex interactions within the Ethereum ecosystem. Progress was also made on L1 fast confirmation rule implementations across various consensus clients, a key factor in reducing transaction latency and improving the perceived responsiveness of the network.
Interoperability standards also advanced considerably. The introduction of ERC-7930 and ERC-7828 established interoperable addresses and names, simplifying cross-chain communication and user identification. Furthermore, ERC-7888, the Crosschain Broadcaster standard, moved forward, facilitating more seamless asset and data transfers between different blockchain networks.
Evolution of Protocol Strategy: Introducing Three Core Tracks for 2026
As the Ethereum Foundation reflects on the achievements of 2025 and looks toward the future, it has recognized the need to evolve its organizational framework for protocol development. The original "Protocol" initiative, launched with three strategic pillars – Scale L1, Scale Blobs, and Improve UX – served as an effective roadmap for the Pectra and Fusaka upgrades. However, with these milestones achieved, a more holistic and forward-looking structure is deemed necessary to address the evolving needs of the Ethereum ecosystem.
Starting in 2026, the Ethereum Protocol’s work will be organized under three distinct, overarching tracks: Scale, Improve UX, and Harden the L1. This new structure aims to foster greater synergy between related development efforts and provide a clearer strategic direction for the coming years.
The Scale Track: Unifying Execution and Data Availability
The "Scale" track, led by Ansgar Dietrichs, Marius van der Wijden, and Raül Kripalani, represents a consolidation of the previous "Scale L1" and "Scale Blobs" initiatives. This unification acknowledges the deeply intertwined nature of increasing L1 execution capacity and expanding data availability throughput.
The rationale behind this consolidation is rooted in the practical realities of protocol development. Increases in the gas limit, a measure of L1 execution capacity, are directly dependent on the performance and efficiency of the execution engine. Similarly, scaling blob capacity, essential for layer-2 solutions and data storage, relies on networking and consensus changes that often touch the same client codebase as execution enhancements. By bringing these efforts under a single umbrella, the development teams aim to accelerate progress and ensure a more cohesive approach to optimizing the network’s capacity.
This unified "Scale" track will focus on several key objectives:
- Maximizing L1 Transaction Throughput: Continuing efforts to increase the gas limit and optimize execution efficiency to accommodate a growing number of transactions.
- Expanding Data Availability Capacity: Further enhancing blob scaling capabilities to support a burgeoning ecosystem of layer-2 solutions and decentralized applications requiring substantial data storage.
- Optimizing Network Efficiency: Identifying and implementing improvements in networking protocols and consensus mechanisms to reduce latency and enhance overall network performance.
- Synergistic Development: Fostering close collaboration between execution and data availability development teams to leverage shared advancements and minimize development overhead.
This consolidated approach is expected to lead to more rapid and efficient scaling of the Ethereum network, preparing it for mass adoption and increasingly complex decentralized applications.
The Improve UX Track: Elevating User Experience and Interoperability
The "Improve UX" track, led by Barnabé Monnot and Matt Garnett, will build upon the momentum generated in 2025, with a sharpened focus on two high-leverage areas for Ethereum’s usability in 2026: native account abstraction and enhanced interoperability.
Native account abstraction is seen as a critical next step beyond the EIP-7702 introduced with Pectra. The ultimate goal is to make smart contract wallets the default user experience, eliminating the need for complex bundlers, relayers, and additional gas overhead that can complicate the current user journey. Proposals like EIP-7701 and the more recent EIP-8141 (Frame Transactions) are pushing towards embedding smart account logic directly into the protocol. This integration aims to make smart accounts as seamless to use as traditional EOAs, while offering vastly superior security and flexibility.
This evolution of account abstraction also intersects with long-term security considerations, particularly post-quantum readiness. Native account abstraction provides a natural and robust migration path away from the current ECDSA-based cryptographic signatures, which are vulnerable to future quantum computing threats. Alongside this, significant research is underway to develop and integrate proposals that will make it gas-efficient to verify quantum-resistant signatures within the Ethereum Virtual Machine (EVM).
On the interoperability front, the "Improve UX" track will continue to build on the foundation laid by the Open Intents Framework. The overarching objective is to enable seamless, trust-minimized interactions between different layer-2 solutions and even other blockchains. This vision of a truly interconnected Ethereum ecosystem is being progressively realized through continued progress in reducing L1 confirmation times and optimizing L2 settlement periods. These advancements are crucial for creating a fluid and efficient cross-chain experience for users and developers alike.
The Harden the L1 Track: Ensuring Core Network Resilience and Security
A significant addition to the strategic framework is the "Harden the L1" track, led by Fredrik Svantes, Parithosh Jayanthi, and Thomas Thiery. This new track underscores a critical realization: as Ethereum scales and evolves, maintaining and enhancing its core properties of decentralization, censorship resistance, and security is paramount.
This track will address several vital areas:
- Censorship Resistance: Implementing mechanisms and protocols to ensure that network operations cannot be easily suppressed or manipulated, preserving the open and permissionless nature of Ethereum.
- Validator Security and Resilience: Strengthening the security posture of validators and the overall consensus mechanism to protect against attacks and ensure uninterrupted network operation.
- Post-Quantum Cryptography Integration: Actively working towards the integration of quantum-resistant cryptographic algorithms to future-proof the network against emerging threats. This includes research into efficient signature verification methods for quantum-resistant schemes.
- MEV Mitigation and Fair Ordering: Investigating and implementing solutions to address the complexities of Maximal Extractable Value (MEV) and ensure fair transaction ordering, promoting a more equitable ecosystem for all participants.
- Client Diversity and Robustness: Encouraging and supporting the development of diverse and robust client implementations to prevent single points of failure and enhance overall network resilience.
The creation of the "Harden the L1" track signifies a proactive commitment to safeguarding Ethereum’s fundamental value proposition as a secure, decentralized, and censorship-resistant platform, even as it undergoes rapid scaling and technological advancement.
Looking Ahead: The Ambitious Roadmap for 2026
The Ethereum roadmap for 2026 is defined by the upcoming "Glamsterdam" network upgrade, targeted for the first half of the year, followed by "Hegotà" later in the year. These upgrades are set to be transformative, embodying the strategic shifts outlined in the new track structure.
The ambition for these upgrades is substantial, encompassing:
- Parallel Execution: Significant advancements in parallel execution capabilities are expected, allowing the network to process transactions and smart contract code more concurrently, thereby increasing throughput.
- Enshrined PBS (Proposer-Builder Separation): This critical development aims to enhance the efficiency and decentralization of block production by separating the roles of block proposers and block builders.
- Continued Blob Scaling: Further enhancements to data availability capacity, building upon the success of PeerDAS, will be a core focus.
- Progress on Censorship Resistance and Native Account Abstraction: These key objectives from the "Harden the L1" and "Improve UX" tracks will be actively pursued and integrated.
- Advancements in Post-Quantum Security: The integration of quantum-resistant cryptography will be a central theme, preparing the network for future cryptographic challenges.
The Ethereum Foundation plans to continue its practice of publishing detailed, track-level updates, similar to the reporting from 2025. Developers and interested parties are encouraged to visit protocol.ethereum.foundation for the latest information and opportunities to get involved. The overarching message from the Ethereum protocol development community is one of continued momentum and a commitment to shipping impactful upgrades. The evolution of the Protocol strategy signals a mature and adaptive approach to building the future of the world’s leading decentralized platform.
