> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chainstack updates: August 11, 2025

> Flashblocks preconfirmations are now available for Base nodes on Chainstack, delivering ultra-fast transaction visibility for Base Mainnet builders.

**Protocols**. Flashblocks preconfirmations for the Base nodes are now available on Chainstack. See [Flashblocks on Base](/docs/flashblocks-on-base).