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From Ethereum Foundation Activates Protocol Upgrade Bringing Proposer-Builder Separation

How could The Glamsterdam upgrade activation affect Solana?

Possible What happens if… A possibility worth considering, not a forecast.

Ethereum's technical upgrade may increase competitive pressure on Solana The activation of the Glamsterdam upgrade introduces Proposer-builder separation (PBS) directly into the Ethereum protocol. This change strengthens censorship resistance by ensuring the network itself verifies block delivery, rather than relying on external intermediaries. This technical enhancement bolsters Ethereum's appeal, particularly to large financial institutions, which some experts argue remain focused on Ethereum as the primary settlement layer. This increased technical and institutional strength could intensify the competitive dynamics between Ethereum and rivals like Solana.

Reported by 4 independent outlets Written Oct 18
Effect
Mild negative
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Over the long term
The story
Gone quiet

How it reaches Solana

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The facts so far

As reported. Each one links to where it comes from.

  • The Glamsterdam upgrade will bring proposer-builder separation into the protocol itself when it activates on the Hoodi testnet at epoch 132,352 on October 26, 2026.techreport.com
  • The change strengthens censorship resistance because the network no longer depends on intermediaries outside the protocol to connect those who order transactions with those who build blocks.techreport.com
  • zkSync founder Alex Gluchowski argued in March that Ethereum remained the “only option” for large financial institutions, despite growing competition from rival blockchain networks.foreignpolicyjournal.com

Why it matters

The battle for market dominance in the Layer-1 blockchain space is fierce, with Ethereum and Solana being intense competitors vying for institutional capital and user adoption. Any significant technical leap by Ethereum, such as the enshrined PBS, directly improves its core value proposition, making it a more robust and attractive platform for large financial players.

This development occurs amid broader discussions about Ethereum's long-term viability and institutional readiness. While some analysts dismiss warnings of a funding crisis, the continuous technical evolution of the protocol, supported by the Ethereum Foundation, is crucial for maintaining its reputation for reliability against rivals.

What we don't know yet

  • Will Solana introduce comparable protocol-level improvements to counter Ethereum's technical advancements?
  • How quickly will large financial institutions shift their focus based on Ethereum's new technical capabilities?

Is this still moving?

Gone quiet
Reports
4
Developments
6
Repetition
50%

What would change this answer

Solana launches a major protocol upgrade that significantly enhances censorship resistance or institutional compatibilityThis could mitigate the competitive pressure from Ethereum, stabilizing Solana's market position.
The Ethereum Foundation fails to secure further large-scale institutional adoption despite the technical upgradesThe impact of the Glamsterdam upgrade on market share could be significantly reduced.

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Brind's analysis is written by AI from the reporting linked above and can be wrong. This explainer is a possibility worth considering, not a forecast: steps marked as Brind's reasoning are not stated in the reporting. It is not investment advice; do your own research.