---
title: Solana’s Alpenglow Upgrade Now on Second Test Network
url: >-
  https://www.cryptocatalyst.news/articles/2026-09-27-solanas-alpenglow-upgrade-now-on-second-test-network
canonical: >-
  https://www.cryptocatalyst.news/articles/2026-09-27-solanas-alpenglow-upgrade-now-on-second-test-network
date: '2026-09-27T12:07:26.651658+00:00'
category: general
tags:
  - solana
  - alpenglow
  - blockchain
  - upgrade
  - testnet
source: CoinDesk
source_url: >-
  https://www.coindesk.com/tech/2026/09/26/solana-s-150-millisecond-settlement-upgrade-reaches-second-public-test-network
publisher: CryptoCatalyst
summary: >-
  Solana’s 150-millisecond settlement upgrade, Alpenglow, is now live on both
  public test networks, allowing developers to test apps before the mainnet
  switch.
image: >-
  https://www.cryptocatalyst.news/images/articles/2026-09-27-solanas-alpenglow-upgrade-now-on-second-test-network.webp
generated_by: automated editorial pipeline
---
# Solana’s Alpenglow Upgrade Now on Second Test Network

Solana’s Alpenglow upgrade, which promises 150-millisecond settlement times, is now running on both of its public test networks. This lets developers test their applications before the upgrade goes live on the main blockchain.

## Key takeaways

- Solana’s Alpenglow upgrade, which reduces settlement times to 150 milliseconds, is now live on both public test networks.
- Developers can now test their applications on the test networks before the upgrade goes live on the main Solana blockchain.
- The upgrade aims to improve transaction speed and reliability, making Solana more attractive to developers and users.
- The mainnet deployment of Alpenglow is expected in the coming weeks.
- Developers are encouraged to test their applications to ensure compatibility with the new settlement times.

Solana’s Alpenglow upgrade, which reduces settlement times to just 150 milliseconds, is now live on both of the blockchain’s public test networks. This milestone gives developers a chance to test their applications in a real-world environment before the upgrade is activated on the main Solana blockchain.

The Alpenglow upgrade is a significant step in Solana’s efforts to improve transaction speed and reliability. By reducing settlement times, the upgrade aims to make the network more efficient and attractive to developers and users alike.

## What’s Next for Alpenglow?

The upgrade is expected to go live on the main Solana blockchain in the coming weeks. Developers are encouraged to use the test networks to ensure their applications are compatible with the new settlement times. This testing phase is crucial to avoid any disruptions when the upgrade is fully deployed.

## Why This Matters for Developers

For developers building on Solana, this upgrade means faster and more reliable transactions. The reduced settlement time can lead to better user experiences and more efficient applications. It also positions Solana as a strong competitor in the blockchain space, especially for applications that require high-speed transactions.

## What It Means for You

If you’re a Solana user, this upgrade could lead to faster and more reliable transactions across the network. For developers, it’s a chance to optimize your applications for the new settlement times. Keep an eye on Solana’s official channels for updates on the mainnet deployment.

## FAQ

### What is the Alpenglow upgrade on Solana?

The Alpenglow upgrade is a Solana improvement that reduces settlement times to 150 milliseconds, aiming to make transactions faster and more reliable.

### Why is Alpenglow important for developers?

Alpenglow is important for developers because it allows them to test their applications on the test networks before the upgrade goes live on the main blockchain.

### When will Alpenglow be deployed on the main Solana blockchain?

The mainnet deployment of Alpenglow is expected in the coming weeks. Developers should keep an eye on Solana’s official channels for updates.

### How can developers prepare for the Alpenglow upgrade?

Developers can prepare by testing their applications on the public test networks to ensure compatibility with the new settlement times.

## Source

This article is a summary of reporting by [CoinDesk](https://www.coindesk.com/tech/2026/09/26/solana-s-150-millisecond-settlement-upgrade-reaches-second-public-test-network), written by an automated editorial pipeline. See https://www.cryptocatalyst.news/editorial-policy.

## How to cite

CryptoCatalyst.news, "Solana’s Alpenglow Upgrade Now on Second Test Network", 2026-09-27, https://www.cryptocatalyst.news/articles/2026-09-27-solanas-alpenglow-upgrade-now-on-second-test-network