Release 4.4.1.0

Notable Fixes

FSM: Fixed mDNS plugin where mDNS were not cached for each unique IP address
LTEM:
- Send MQTT LTE information regardless of LTE state
- Don't set WAN state up in northbound API on L3 upstream failure
- Fix LTE persistence configuration, use secondary uplink during onboarding instead restart managers
CM: Disable repeating uplink check, when uplink was updated

Amended logpull script to collect outputs of lsof and contents of /proc/sys/fs/file-nr
Added health-check script to check the available file handles resource pool (observing /proc/sys/fs/file-nr)
LTEM
- Don't program the APN unless it has changed
- Add a healthcheck for LTE
- Reset modem when not connected to a cell
- Additional LTE Neighbor metrics in MQTT report
- Read and store the modem FW version
CM: Speed up link switching

BM: Out of band 6GHz capability detection of clients
DM: Enable or disable SIP-ALG configuration
WM:
- Introduced Fast Transition WPA2/3-Enterprise option
- WPS support with Hostapd
- Reporting RADIUS availability
- Secondary RADIUS support for WPA2/WPA3 enterprise
FSM: Introduced network ID attribute to all caches and improved reporting
CM: Bluetooth functionality is independent of node type (extender or gateway). You can now easily enable or disable bluetooth functionality on your node.
VPNM: Optional. Introduced VPN Manager that does IKEv2 IPSec WAN IP split tunnel L3 and application-based routing
SpeedTest report now includes all data elements provided by Ookla's binary

FCM: Corrected the role inside the interface statistics
BM:
- Prevent false positive steering attempts when authorization fails
- After a client connection failure, backoff timer is not reset. The correct time is taken by BM.
WM: Fixed a corner case. When WiFi driver downgraded the HT mode, the primary channel can now be set correctly and avoid loss of client connectivity
CM: Force restart managers always after 24h in skipped mode

Within ovsdb, extend dhcpd field in WiFi_Inet_Config/State table to support multiple routes over DHCP option 121
FSM and FCM to use unix domain sockets for inter process communication (IPC)
FSM:
- Extended logging for DNS activity in the DPI framework
- DPI UPnP plugin can be enabled using Kconfig
OSN: Added localhost interface to miniupnpd config

Removed OpenSync Gateway/Extender target from QCA template. Instead please refer to the reference design.
Improved multicast exceptions on BCM platforms

* Features which are still in development are disabled by default, and will not be supported in this release.