> ## 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: September 11, 2026

> Bitcoin Testnet4 is now deployable on Chainstack as Global Nodes and Dedicated Nodes.

**Protocols**. Now, you can deploy Bitcoin Testnet4 for [Global Nodes](/docs/global-elastic-node) and [Dedicated Nodes](/docs/dedicated-node).