Since there is no public documentation for this specific version string, I've drafted a blog post template below that you can use to announce this update to your users or community. New Update Available: GPP v2.3.80.5345P (v1.0)
Follow the standard update procedure via your device's administrative interface. Important Note GPP_v2.3.80.5345P_v1.0.zip
As with any firmware or software update, please ensure you have backed up your current configuration settings. Since there is no public documentation for this
Save the GPP_v2.3.80.5345P_v1.0.zip file to your local machine. GPP_v2.3.80.5345P_v1.0.zip