The intricate world of Ethereum’s core development, a constant flux of innovation and refinement, is meticulously tracked through its All Core Developers (ACD) calls. To distill this complex process for a broader audience, a "Checkpoint" series offers periodic, high-level updates. This installment delves into the latest progress and challenges surrounding upcoming Ethereum upgrades, primarily focusing on Glamsterdam and Hegotā, while also touching upon broader advancements in gas limits and developer resources.
Glamsterdam Upgrade: Steady Progress Amidst Technical Complexities
The Glamsterdam upgrade, representing the next significant evolution for the Ethereum network, is making steady, albeit slow, progress. While the overarching vision is clear, the implementation of its proposed features is encountering expected technical hurdles, particularly with its flagship proposal: enshrined Proposer-Builder Separation (ePBS).
ePBS, a fundamental shift in how Ethereum blocks are constructed and validated, aims to formally integrate the roles of block proposers and builders within the consensus layer itself. Currently, these functions largely operate outside the protocol, leading to complexities in coordination and potential inefficiencies. The transition to an enshrined model means the protocol must now natively handle the interactions, disagreements, and potential failures between these two distinct entities. This necessitates a profound re-evaluation of the entire network stack, as every component must be capable of reasoning about "partial blocks" and the intricacies of two-party coordination.
The complexity of ePBS is not the only factor contributing to Glamsterdam’s measured pace. Non-headliner features, such as gas repricing initiatives, are also proving to be more intricate than initially anticipated. These changes, often bundled together for efficiency, involve detailed analysis and meticulous implementation to ensure network stability and predictability. For instance, the ongoing work on gas repricing aims to optimize transaction costs and network throughput, a crucial step for scaling Ethereum. The intricate nature of these adjustments underscores the careful approach required to avoid unintended consequences.
On the execution layer, Block-level Access Lists (BALs), introduced via EIP-7928, represent a significant departure from current gas and state access mechanisms. This feature is designed to provide more granular control over transaction execution and state access, potentially leading to improved gas efficiency and enhanced privacy. The ongoing development and testing on BAL devnets are indicative of the systematic approach to tackling these complex challenges.

The development roadmap for Glamsterdam involves a phased rollout of devnets. The immediate goal is to launch the first generalized Glamsterdam devnet, contingent on the stabilization of the current ePBS devnet. Following this, the team plans to iterate through multiple devnets, progressively integrating more of the non-headliner features. The ultimate timeline for the mainnet fork date will only be announced after a stable devnet encompassing all planned features is achieved, followed by rigorous client releases, comprehensive security reviews, and successful testnet deployments.
Hegotā Upgrade: FOCIL Selected as Major Feature, Account Abstraction Remains a Focus
As development on Glamsterdam progresses, attention is already turning to its successor, the Hegotā upgrade. The selection process for Hegotā’s major feature has concluded, with FOCIL (Ethereum Improvement Proposal 7805) emerging as the chosen consensus layer headliner. FOCIL is expected to introduce significant enhancements to the consensus mechanism, though specific details of its impact are still being elaborated upon by core developers.
The execution layer discussions for Hegotā have been particularly dynamic, with a significant focus on Account Abstraction. While a dedicated proposal for frame transactions (EIP-8141) was considered, a lack of complete consensus among client developers regarding specific implementation choices led to its reclassification. It has been moved to a "Considered for Inclusion" (CFI) status as a non-headliner feature. This decision signifies a commitment to continue exploring and developing Account Abstraction solutions that garner broader support within the developer community, encouraging active participation from the wider ecosystem.
Account Abstraction is a critical area of development for Ethereum, promising to significantly enhance user experience by enabling more flexible and powerful account management. This could involve features like social recovery, multi-signature wallets managed by smart contracts, and gas payments by third parties, making Ethereum more accessible to a wider range of users. The ongoing dialogue and refinement of Account Abstraction proposals highlight its strategic importance for Ethereum’s future growth.
A growing interest in quantum resistance within the blockchain space is also being observed. While no standalone proposals solely focused on quantum resistance have been introduced for Hegotā yet, it is being integrated as a component within broader proposals, such as certain Account Abstraction initiatives. This indicates a proactive approach to preparing Ethereum for the potential advent of quantum computing.
The process for proposing non-headlining features for Hegotā is set to commence on April 9th. Interested parties can submit their proposals by incorporating them into the "Proposed for Inclusion" section of the upgrade’s meta EIP (EIP-8081). A clear deadline for submissions will be communicated at least two weeks in advance, ensuring ample opportunity for community engagement. Comprehensive and up-to-date information regarding the Hegotā upgrade process and its timeline is readily available on its dedicated Forkcast page.

The eventual launch date for the Hegotā upgrade is intrinsically linked to the progress and timely completion of Glamsterdam. The successful deployment of Glamsterdam will pave the way for the subsequent phases of development and testing for Hegotā.
Gas Limit Increases and Developer Resources
Beyond the specific upgrade roadmaps, continuous efforts are underway to enhance Ethereum’s capacity. Gas limit increases are a persistent area of testing on devnets, with the aim of significantly boosting the baseline gas limit in Glamsterdam and future upgrades. The current target for the baseline gas limit is 60 million (M). However, ongoing testing is pushing these limits much higher to thoroughly understand the implications and identify necessary optimizations. This work is crucial for scaling Ethereum to accommodate a growing number of decentralized applications and users. Much of the gas repricing work currently being integrated into Glamsterdam is expected to facilitate these safe and higher gas limits.
In parallel, the Ethereum Protocol Support team has released new resources designed to empower EIP authors and advocates. The EIP Champions Handbook, now available on the Protocol Support team’s website, provides guidance on navigating the proposal process, seeking stakeholder feedback, and championing feature proposals for inclusion in future Ethereum upgrades. This initiative aims to streamline the contribution process and foster greater community involvement in shaping Ethereum’s development.
Broader Implications and Future Outlook
While the initial excitement surrounding Fusaka’s rapid deployment following Pectra fueled optimism for quicker Ethereum forks, Glamsterdam’s implementation challenges serve as a reminder of the complexity inherent in protocol upgrades. The features being developed are far from trivial, requiring meticulous engineering and rigorous testing. Despite these hurdles, core developers appear undeterred, demonstrating a commitment to thoroughness over speed.
The current projection suggests that Glamsterdam’s mainnet launch in the second quarter of this year is unlikely. However, the strategic decision to select a single headliner for Hegotā could potentially shorten its development cycle, depending on how the non-headliner proposal process unfolds. There remains a possibility that the developer community could coalesce around a particularly impactful Account Abstraction proposal, elevating it to headliner status for Hegotā due to its perceived importance to the ecosystem.
The "strawmap," a community-driven document that outlines potential future Ethereum upgrades, has played a significant role in reigniting enthusiasm and providing a guiding framework for feature prioritization. This informal roadmap appears to be an effective tool in fostering consensus and aligning the community’s vision for Ethereum’s evolution.

Relevant ACD Calls
The ongoing discussions and decisions related to these upgrades are meticulously documented in the Ethereum All Core Developers (ACD) calls. Key calls from January 21st to April 9th provide a granular view of the technical debates, consensus-building efforts, and decision-making processes that shape Ethereum’s future.
These include:
- ACDT (All Core Developers – Teleconference): Calls 76 through 67 have covered a broad range of topics, likely including technical discussions and progress updates on various EIPs and upgrade features.
- ACDC (All Core Developers – Consensus Layer): Calls 176 through 173 have been instrumental in shaping the consensus layer’s direction, including the selection of FOCIL for Hegotā.
- ACDE (All Core Developers – Execution Layer): Calls 234 through 229 have focused on the execution layer’s evolution, addressing challenges related to ePBS, gas repricing, and Account Abstraction.
These calls, alongside the detailed documentation available on platforms like Forkcast, serve as the bedrock for transparency and collaboration in Ethereum’s core development. The continued dedication of the core development community, coupled with the evolving tools and frameworks for proposal management, underscores Ethereum’s commitment to a robust and decentralized future.















