This release contains the following changes since 4.3.37 (last publicly-released version).
DHCP client hostname DNS registration improvements - strip invalid characters and register the remaining, and allow periods. Removed 'host-decl-name' from registration consideration, so hosts with DHCP reservations defined in the controller will have the client-provided client hostname registered.
Back end fix for DPI statistics retention coming in 5.6.3 controller
Several Debian package dependencies updated to match latest EdgeRouter stable release.
dnsmasq upgraded to same as latest EdgeRouter stable release.
Adds back end allowing disabling SSH, for coming controller-side feature.
Fixed RADIUS server service not being restarted in some cases where required, cause of RADIUS not working post-upgrade with previous upgrades.
Fix for IPsec reloading problem after bootup and IP changes with DHCP WANs
Added back end for site to site IPsec VPN status and statistics in the controller.