What Is Ethereum Glamsterdam Upgrade? Date, Key Features, and Impact

The Ethereum Glamsterdam upgrade represents a pivotal step in the network’s long-term scaling roadmap. As the ethereum next upgrade and a major ethereum hard fork 2026, Glamsterdam builds directly on the Fusaka upgrade to deliver meaningful ethereum layer 1 scaling. 

Named by combining “Amsterdam” (execution layer, referencing a past Devconnect location) and “Gloas” (consensus layer, named after a star), the ethereum glamsterdam upgrade focuses on reorganizing how the network processes transactions, manages state, and creates blocks.

What is Glamsterdam upgrade? It is a combined execution-layer and consensus-layer hard fork designed to clear the path for the next generation of scaling. 

While Fusaka emphasized foundational refinements such as PeerDAS for data availability, Glamsterdam advances the “Scale L1” and “Scale Blobs” objectives.

It enshrines separation of duties between network participants and introduces more efficient data handling to prepare the state for high-throughput parallelization. 

These improvements aim to keep Ethereum fast, affordable, and decentralized even as activity grows, while keeping hardware requirements manageable for home node operators.

Key Takeaways

• The Glamsterdam upgrade (Ethereum’s next major hard fork in Q3 2026) advances Layer 1 scaling through parallel execution and structural changes after Fusaka.
• Headliner EIPs include EIP-7732 (ePBS) for larger payloads and EIP-7928 (Block-Level Access Lists) to enable safe parallel transaction processing.
• Changes target sustainability, higher gas limits, potential fee relief for simple transfers, and better node performance while preserving decentralization.

Ethereum’s Evolution: Fusaka, Glamsterdam, and Beyond

Source: Crypto APIs

Ethereum continues its methodical upgrade path. Fusaka laid groundwork; Glamsterdam delivers structural changes for capacity and sustainability. 

Looking further, the subsequent upgrade (often referenced as Hegotà) is expected to explore Verkle Trees and other efficiency gains, potentially in late 2026 or later depending on progress. The Glamsterdam upgrade date has shifted: originally targeted for June 2026, it is now expected in Q3 2026. 

The Ethereum Foundation confirmed the revised timeline to allow additional testing and interoperability work across consensus and execution clients. Devnets are already active, with public testnet activation anticipated before mainnet.

This ethereum upgrade 2026 prioritizes three core goals that define its glamsterdam features:

• Speeding up processing through parallelization so the network can safely handle many transactions simultaneously rather than strictly sequentially.
• Expanding capacity by splitting the heavy lifting of creating and verifying blocks, giving the network more time to propagate larger amounts of data.
• Preventing database bloat for long-term sustainability by adjusting fees to reflect the true hardware cost of storing new data, which unblocks future gas-limit increases.

In short, Glamsterdam introduces the structural changes needed for the network to increase capacity while remaining sustainable and high-performing.

Scale L1 & Parallel Processing: The Heart of the Upgrade

Meaningful ethereum layer 1 scaling requires moving away from off-protocol trust assumptions and serial execution constraints. 

Glamsterdam addresses this by enshrining separation of certain block-building duties and introducing new data structures that prepare the network for ethereum parallel execution.

Headliner: Enshrined Proposer-Builder Separation (ePBS) – EIP-7732 / Glamsterdam ePBS

Currently, the relationship between block proposers and block builders sits outside the core protocol.

It relies on trusted third-party middleware (relays such as those used with MEV-Boost) and creates a “hot path” that forces validators to complete broadcasting and execution in a tight ~2-second window. This limits how much data the network can safely handle.

EIP-7732 (glamsterdam epbs) formally separates the proposer role (selecting the consensus block) from the builder role (assembling the execution payload) and enshrines the hand-off in the protocol. Key benefits include:

• Removal of off-protocol trust assumptions and reliance on third-party relays for the core exchange.
• Support for much larger payloads through extended propagation windows.
• Introduction of trustless builder payments directly into the protocol.
• Architectural updates for staking pools that enable trustless monitoring, while refining the overall builder selection process and improving the staking user experience.

To solve the timing bottleneck, ePBS introduces a Payload Timeliness Committee (PTC) and dual-deadline logic. Validators can attest to the consensus block and the execution payload’s timeliness separately. 

This expands the propagation window from roughly 2 seconds to about 9 seconds. The result is safer handling of larger data volumes (including more blobs for Layer 2s) without stressing the network. 

Builders and proposers may still optionally use off-protocol tools for advanced features not yet enshrined.

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Headliner: Block-Level Access Lists (BALs) – EIP-7928

Today’s Ethereum processes transactions sequentially because the network does not know in advance which accounts or storage slots a transaction will touch. Parallel execution without dependency information risks conflicts.

Block Level Access Lists (EIP-7928) provide an upfront map of all transaction dependencies. The execution layer stores the full Block Access List, including every account change and the final post-execution values, while the block header carries a compact hash fingerprint of the list. Benefits include:

• Elimination of sequential bottlenecks by enabling validators to process non-overlapping transactions in parallel.
• Faster node synchronization via executionless sync: nodes can update state by reading final results instead of replaying every transaction.
• Pre-loading of necessary data, removing step-by-step discovery and accelerating validation.
• Parallel disk reads that significantly improve throughput potential.

The networking companion eth/71 (or related work such as EIP-8159) allows nodes to exchange these lists efficiently, further supporting faster syncing and executionless state updates. Together, BALs and ePBS form the core of this ethereum scalability upgrade.

Network Sustainability Measures

As capacity grows, fees must accurately reflect long-term hardware costs. Glamsterdam includes targeted gas adjustments:

State Creation Gas Cost Increase (EIP-8037)

• Ties costs to the actual size of permanent data created.
• Targets a predictable state growth rate of approximately 120 GiB/year via a fixed cost-per-state-byte model.
• Introduces a reservoir accounting model that separates computational gas from state-gas, allowing larger and more complex applications without hitting artificial limits.
• Supports a credible post-upgrade gas-limit target around 200 million (with testing referenced near 150 million) while keeping home staking viable.

State-Access Gas Cost Update (EIP-8038)

• Raises costs for underpriced state-access opcodes (such as those requiring multiple database reads) to match modern hardware realities.
• Strengthens resilience against denial-of-service vectors that exploit artificially cheap heavy reads.
• Encourages more efficient application design.

These changes ensure that higher gas limits do not lead to unsustainable database bloat.

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Network Resilience and Operational Improvements

Additional EIPs improve stability and fairness:

• Exclude Slashed Validators from Proposing (EIP-8045): Prevents already-penalized validators from being selected for future duties, eliminating guaranteed missed slots and improving recovery during mass-slashing events.
• Increase Exit and Consolidation Churn (EIP-8061): Allows exit capacity to scale with total staked ETH and gives consolidations a dedicated queue. At current levels this roughly multiplies exit capacity by 4× and consolidation capacity by 2×, shortening withdrawal times while carefully preserving security parameters (weak subjectivity period approximately halves but remains analyzed as safe).

User and Developer Experience Enhancements

Glamsterdam also delivers practical quality-of-life improvements:

• Reduce Intrinsic Transaction Gas (EIP-2780): Lowers the base fee for simple native ETH transfers between existing accounts (potentially up to ~71% cheaper for the intrinsic component), improving Ethereum’s viability for everyday payments while adding a surcharge for new-account creation to protect against state growth.
• Deterministic Factory Predeploy (EIP-7997): Places a minimal factory at a fixed address so developers can deploy contracts and smart-contract wallets to identical addresses across participating EVM chains, reducing user confusion and fund-loss risk.
• ETH Transfers and Burns Emit a Log (EIP-7708): Mandates standard log emission for non-zero ETH movements, eliminating a historical blind spot for wallets, exchanges, and bridges.
• eth/70 Partial Block Receipt Lists (EIP-7975): Introduces pagination so large receipt lists can be requested in manageable chunks, preventing sync failures as block capacity grows.

Other supporting work, such as potential increases to maximum contract size, further expands developer options.

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Glamsterdam Impact on Ethereum

The glamsterdam impact on ethereum is primarily structural and capacity-oriented. By enabling ethereum parallel execution, larger safe payloads, and sustainable state growth, the upgrade positions Layer 1 for higher throughput. 

This supports both base-layer activity and the data needs of Layer 2 networks. Node operators benefit from faster syncing options and more predictable hardware requirements. Stakers see refined processes and faster exits/consolidations under normal conditions.

Regarding will glamsterdam lower gas fees: for simple ETH transfers the answer is yes via reduced intrinsic costs.

Broader fee relief is expected indirectly as capacity expands and congestion decreases, though certain state-creating operations become more accurately (and sometimes more expensively) priced to protect long-term sustainability. 

Overall capacity growth is the primary lever for lower per-transaction costs over time. Glamsterdam impact on eth price is not a direct protocol outcome. 

Protocol upgrades that improve scalability, usability, and sustainability have historically been viewed positively by the market as they strengthen Ethereum’s competitive position, but price movements depend on broader market conditions, adoption, macroeconomic factors, and sentiment. 

No upgrade guarantees price appreciation.

Ethereum Glamsterdam EIPs Overview

Here is a summary of major Glamsterdam EIP contributions:

Conclusion: Timeline & What Comes Next

The ethereum glamsterdam upgrade date is currently targeted for Q3 2026. Original plans pointed to June 2026; the delay allows thorough testing of ePBS interoperability and related components. 

After Glamsterdam, attention turns to the next upgrade (Hegotà and beyond), which is expected to continue the focus on efficiency, potential Verkle Trees for stateless clients, and longer-term quantum-resistance research under the Strawmap initiative.

Glamsterdam is a major ethereum scalability upgrade that prepares the base layer for substantially higher throughput without sacrificing decentralization or the ability for individuals to run nodes. 

By combining ePBS, Block-Level Access Lists, thoughtful gas repricing, and numerous operational improvements, it advances Ethereum’s multi-year roadmap in a careful, sustainable manner.

Stay informed about the latest developments in the crypto market, including Ethereum upgrades and market analysis, through regular articles on the Bitrue blog.

Read Also: Is Ethereum Still Good to Buy in 2026?

FAQ

1. What is the Glamsterdam upgrade and when is the Glamsterdam upgrade date?

The ethereum glamsterdam is a combined execution and consensus layer hard fork focused on Layer 1 scaling, parallel execution readiness, and sustainability. The ethereum glamsterdam upgrade date is targeted for Q3 2026 (delayed from an original June 2026 goal) to allow additional testing.

2. What are the main Glamsterdam features and Ethereum Glamsterdam EIPs?

Key glamsterdam features include ePBS (EIP-7732), Block-Level Access Lists (EIP-7928), gas repricing for state growth, improved validator processes, cheaper simple transfers, and better multi-chain developer tools. These form the core of this ethereum scalability upgrade.

3. Will Glamsterdam lower gas fees?

Yes for many everyday users. EIP-2780 reduces intrinsic costs for simple ETH transfers. Broader capacity increases from parallel execution support and higher gas-limit targets are expected to ease congestion-related fees over time, although some state-creating operations become more accurately priced.

4. How does Glamsterdam impact Ethereum and what about impact on ETH price?

The glamsterdam impact on ethereum centers on higher safe throughput, better sustainability, faster node operations, and improved usability while protecting decentralization. Impact on ETH price is indirect and market-driven; protocol improvements that strengthen the network can support positive sentiment but do not determine price.

5. Do users or stakers need to take action for the Ethereum hard fork 2026?

Ordinary users and ETH holders need take no action—balances remain unchanged and no “conversion” is required. Node operators and stakers must update both execution and consensus clients to versions supporting Glamsterdam. Follow official client releases and Ethereum Foundation announcements. Beware of any scams claiming you must “upgrade” your ETH.

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