UniFi This Week: OS 5.1.31 and Protect Siren Updates
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UniFi This Week: OS 5.1.31 and Protect Siren Updates

JMJim MazzarellaCEO & Managing Partner August 29, 2026 1 min read

Ubiquiti has released UniFi OS 5.1.31 for Cloud Gateways and NVRs, alongside a firmware update for the UniFi Protect Siren PoE.

UniFi OS Updates

Ubiquiti has released UniFi OS 5.1.31 for Cloud Gateways and Enterprise Network Video Recorders. This update includes bundled application updates for UniFi Network, UniFi Protect, and the Identity Sync Service, which ensures that managed environments remain current with the latest service improvements and bug fixes.

UniFi Protect

Firmware version 1.6.1 is now available for the UniFi Protect Siren PoE. This release improves connection stability, enhances firmware update resiliency, and resolves an issue that could prevent the tamper alarm from activating when the tamper button was triggered, ensuring more reliable physical security monitoring.

Nexus evaluates new UniFi hardware and software releases before deploying them into managed client environments. If you are interested in a professional assessment of your current infrastructure, please contact us to schedule a UniFi360 network assessment.

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