> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/rev-hardware-client/ion/pneumatic-hub/updating-a-pneumatic-hub.md).
# Updating a Pneumatic Hub
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Those using REV ION products on REVLib 2026 or newer must use [REV Hardware Client 2](https://docs.revrobotics.com/rev-hardware-client-2).
{% endhint %}
Startup the REV Hardware Client. Once the Pneumatic Hub is fully connected it will show up on the front page of the UI under the **Hardware Tab**. Select the Pneumatic Hub.
After selecting the Connected Hardware, the Update tab will pop up. Under **Pneumatic Hub Firmware** select Download.
Once the firmware has downloaded, select Update. (Your Hardware Client will say "Update" instead of "Re-install")
When the firmware update has completed a status message "Update Completed" will appear. The status for the Pneumatic Hub Firmware will also change to "Up-to-Date."
