Grandstream’s Firewall Service provides regular updates and upgrades to ensure that your firewall is always utilizing the most current security protocols.
Starting from firmware 1.0.11.74 release notes, only release information from 1.0.11.35 are kept. Please refer to 1.0.11.71 release notes for previous release information.
Starting from firmware 1.0.19.5 release notes, only release information from 1.0.13.8 are kept. Please refer to 1.0.19.4 release notes for previous release information.