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Solana Developers Say “No Alpenrush” as Alpenglow Mainnet Launch Rumors Collapse

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Solana developers denied that Alpenglow would go live on mainnet on September 28 after launch rumors circulated. The event centered on a consensus upgrade that aims to reduce finality time, while developers said the protocol was still in public testing and not ready for mainnet activation.

Key claims & sources

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Solana developers said Alpenglow would not activate on mainnet on September 28, after launch rumors spread.
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Solana co-founder Anatoly Yakovenko responded to the rumor with the word “decel.”
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Roger Wattenhofer, who leads research at Anza, said the protocol had only been in public testing for a few days and was not ready.

What it means

For Solana users and developers watching the network, the immediate takeaway is that the expected September 28 change did not arrive. Anyone looking for a mainnet switch now has to keep following the testing process instead of treating the date as a live deployment moment.

In practice, the network remained on its existing finality setup rather than moving to the new Alpenglow design. That means the faster finality target stayed a described goal, while the public testing stage continued to be the relevant status marker.

Market reaction i

SolanaSOL it is the asset of the company or protocol in the event
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+1.7% 4 h after
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Coverage timeline

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.

+7 h 52 m
Sep 28 17:46
Crypto Economy echo
No new facts: rhetorically, decelerate, dismissing; with quotes

Has this happened before?

WhenWhat happenedFigure
41 days ago Solana’s Alpenglow upgrade reaches devnet with 150ms finality target event 1 actors in common · 5 news media
41 days ago Solana Activates Alpenglow Consensus Upgrade on Devnet event 1 actors in common · 2 news media
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