As developers approach the concluding stage of the Glamsterdam upgrade, testing of the fork's version has commenced in a controlled environment.
By Margaux Nijkerk|Edited by Jamie Crawley Jun 16, 2026, 2:48 p.m. 2 min readMake preferred on ShareShare this articleCopy linkX (Twitter)LinkedInFacebookEmailMake preferred on (Adi Goldstein/Unsplash)SummaryShow- Ethereum developers have moved into the final phase of Glamsterdam, utilizing devnets with all planned EIPs prior to transitioning to testnets.
- This upgrade is anticipated in the latter half of the year and is regarded as one of the network's most significant changes since the Merge.
Developers at Ethereum are now in the final stage of the Glamsterdam upgrade, as they start testing a version of the fork that incorporates the intended protocol modifications.
Currently, the teams are operating developer networks, or "devnets", which serve as preliminary testing platforms for Ethereum developers to experiment with new code and protocol alterations before they reach public testnets. This stage includes all Ethereum Improvement Proposals (EIPs) planned for the upgrade, indicating what they consider the final step before the codebase is finalized and made available for public testing.
According to Parithosh Jayanthi, a core developer at the Ethereum Foundation, "We're working on devnets with all the EIPs in them right now. This is the last phase before we work on hardening and then shipping the testnets. There's no fixed timeline, but we've made massive progress."
Although a specific activation date for the upgrade has not yet been established, Glamsterdam is expected to launch in the latter half of the year.
This upgrade is shaping up to be one of Ethereum's most ambitious since the network's shift to proof-of-stake in 2022. Jayanthi referred to Glamsterdam as "probably the largest fork we've had since the Merge," adding that it will "change a lot of assumptions about Ethereum and set us up for much more scaling in the future."
Key features include Proposer-Builder Separation (ePBS), officially recognized as EIP-7732, and Block-level Access Lists (EIP-7928).
The ePBS mechanism will establish a division within Ethereum's core protocol between the entities that create transaction blocks and those that propose them. Currently, this process largely occurs offchain, which raises additional trust issues and centralization risks. By transitioning this mechanism onchain, developers aim to minimize manipulation opportunities associated with maximal extractable value (MEV).
Another significant proposal, Block-level Access Lists, will enable blocks to specify in advance which accounts and smart contract data they plan to access. This modification will allow Ethereum clients to preload data more effectively, enhancing block execution speed, predictability, and optimization ease.
In addition to these prominent proposals, Glamsterdam also introduces a comprehensive set of gas repricings that could substantially change the economics of interacting with Ethereum.
“This will majorly change the cost of actions on Ethereum. High-level compute gets cheaper and state gets more expensive," Jayanthi stated.
The repricings aim to align Ethereum's fee structure more closely with the resources utilized by various operations, while also facilitating network scalability through zero-knowledge proving systems, according to Jayanthi.
Developers are currently concentrating on ongoing testing, finalizing specifications, and engaging with the broader Ethereum community regarding the implications of the repricing modifications.
"Mostly testing, finalizing specs, outreach to the community about repricings and then shipping it," Jayanthi concluded.
Read more: Ethereum’s ‘Glamsterdam’ upgrade aims to fix MEV fairness
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CEX Volumes Drop to Lowest Since September 2024 as RWA Perps Hit Record High
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In May, combined exchange volumes decreased by 3.45% to $4.41T, marking the lowest point since September 2024. RWA perpetual futures volumes increased by 10.4% against this trend, reaching a new all-time high.
By CoinDesk ResearchJun 15, 2026In May, combined exchange volumes decreased by 3.45% to $4.41T, marking the lowest point since September 2024. RWA perpetual futures volumes increased by 10.4% against this trend, reaching a new all-time high.
Why it matters:
In May, combined exchange volumes decreased by 3.45% to $4.41T, marking the lowest point since September 2024. RWA perpetual futures volumes increased by 10.4% against this trend, reaching a new all-time high.
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