Solana’s 150-millisecond settlement upgrade reaches second public test network

# Solana’s 150-millisecond settlement upgrade reaches second public test network

> Evidence tier: B1
> Evidence type: Independent digital asset media report
> Source: [CoinDesk](https://www.coindesk.com/tech/2026/09/26/solana-s-150-millisecond-settlement-upgrade-reaches-second-public-test-network)
> Published: 2026-09-26
> Captured: 2026-09-26T12:39:45.937Z

## Source summary

CoinDesk reports that Solana's Alpenglow upgrade is active on both devnet and testnet. It targets roughly 150-millisecond finality versus about 12.8 seconds under the current system. Mainnet activation has not been scheduled, and the speed target has not been demonstrated under live-market conditions; devnet uses tokens with no real value.

## Why it matters

If delivered on mainnet, faster finality could shorten payment and exchange settlement waits. For now, this is test-network progress, not a production payment capability.

## Key numbers

No independently checkable key number was extracted from this report.

## Topics and entities

- Industry lane: Web3 & stablecoin payments
- Entities: CoinDesk
- Web3 payments
- Cross-border payments

## Evidence and credibility note

CoinDesk reports the upgrade is active on test networks; mainnet has no scheduled launch and the speed target has not been demonstrated in live-market conditions.

Date evidence: Automatically verified from JSON-LD datePublished: 2026-09-26T05:00:00.000Z

## First-party corroboration

No directly corresponding A1 company announcement is currently linked.

## Original-source traceback

[Open the original CoinDesk report](https://www.coindesk.com/tech/2026/09/26/solana-s-150-millisecond-settlement-upgrade-reaches-second-public-test-network)

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This is a structured Payments Hot Markdown source summary derived from external reporting. Use the original link above to read the publisher's article; copyright remains with the original publisher.