October 29, 2026

AtomOS 12.8.0 Firmware Release Notes for Sumo PRO-19

Installation Instructions

Detailed instructions on how to install the latest firmware on your device can be found on the firmware download page for your product: www.atomos.com/product-support/

Improvements for Sumo PRO-19:

• Added support for receiving up to 4 streams of HD NDI|HX video simultaneously
• Improved time to switch between playback and recording modes, it should take around half as long as in previous firmware versions
• Improved Display synchronisation with incoming video which results in smoother motion
• Improved Fan control reducing fan speed variability, while also keeping it quieter
• Added Button control to hide GUI overlay, including for Multi Input views
• Camera Control support for Canon EOS R6 V

See www.atomos.com/sumo-pro-certified/ for supported storage & accessories.