Substreams on Solana up to date as Alpenglow goes live

October 22, 2026

Alpenglow — Solana's new consensus protocol cutting finality from ~12.8 seconds to ~150ms — is live on mainnet, and The Graph says Solana Substreams is already up to date with it. StreamingFast prepared Solana Substreams for Alpenglow ahead of the switch so developers' blockchain data pipelines keep running through the upgrade.

The compatibility work means indexers and data apps can keep streaming Solana data without interruption as the network's consensus changes take effect.
The Graph points builders at the 150ms-finality environment for new applications.

Sources

Alpenglow is live and Substreams on Solana is already up to date with it. @streamingfastio ensured Solana Substreams was prepared for Alpenglow ahead of the switch, so developers' blockchain data pipelines keep running through the upgrade. Build on 150ms finality: https://t.co/ltBlajMqqqx.com ↗

The Graph

The Graph is a web3 protocol for organizing and accessing blockchain data

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Substreams on Solana up to date as Alpenglow goes live — Outposts