Glamsterdam Hoodi Testnet Announcement

PRODUCTGlamsterdam HoodiTestnet Announcement49IMPORTANCEQUIET3NEWS MEDIA3PIECESOct 16, 2026 18:31blockboard.net

Ethereum core developers kept the Glamsterdam upgrade on track for the Hoodi testnet on October 15, with Hoodi scheduled for October 26 at 17:42:48 UTC. Glamsterdam had already activated on Sepolia on October 6, and the Hoodi stage is the next scheduled testnet step before any mainnet activation date is set.

What this rests on

Claim by claim, with its source
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Glamsterdam had already activated on Sepolia on October 6.
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The Hoodi announcement describes Glamsterdam as adding enshrined proposer-builder separation, block-level access lists, and gas pricing changes that better reflect execution and state growth costs.
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On October 15, Ethereum core developers kept the Glamsterdam upgrade scheduled for Hoodi at 17:42:48 UTC on October 26.
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On October 15, they declined a late protocol change tied to a validator-and-builder deposit edge case.

What it means

Who it affects, what changes and what is still unconfirmed

Each sentence links inside to the piece that supports it.

Ethereum developers working on the upgrade see Hoodi moving forward on the timetable already set, so people following testnet progress will notice the October 26 slot rather than a pause or reset. The next mainnet date is still not set, so the immediate change today is only on the testnet schedule.

Market reaction

ET Ethereum the event is about this asset from 2 h before to 4 h after the line marks the first headline
published
-1.22 % before publication
+0.30 % after
$2,408price at publication
11series points

The move was larger before the first headline than after. That is an observation, not an explanation: the market also moves on things nobody publishes.

How the story was built

Every piece in order, with the time its news medium declares — if it is not believable we use ours and say so — and what it added to what was already known at that point. Arriving first is not the same as adding something.

first
Oct 16 00:00
Ethereum Foundation blog scoop
Breaks the event
+14 h 27 m
Oct 16 14:26
MEXC context
Its angle: configuration, successfully, preparations; with quotes
+20 h 55 m
Oct 16 20:54
Blockchain.News echo
No new facts: schedules, increase, limit; with quotes

Has this happened before?

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What could happen next

What the prediction markets currently price as likely. This is context, not a forecast of ours: there is money on it, and that is all we show.

0 % no series
Polymarket · $1,201,606 negociados en 24 h · resolves on Oct 1, 2026
0 % no series
Polymarket · $191,019 negociados en 24 h · resolves on Sep 27, 2026
8 % -1 pts
Kalshi · $185,124 of open interest · resolves on Jan 1, 2027
4 % +0 pts
Kalshi · $174,646 of open interest · resolves on Jan 1, 2027