The version numbers mentioned on this page correspond to those released in the Ubuntu snap store.
You can check with the following command which version you have currently installed:
$ snap info network-manager name: network-manager summary: "Network management based on NeworkManager" publisher: canonical description: | Network management of wired Ethernet, WiFi and mobile data connection based on NetworkManager and ModemManager commands: - nmcli tracking: stable installed: 1.2.2-10 (73) 5MB - [...]
- Wake-on-WLAN can be configured via snap/nmcli
- Automatic reconfiguration of network devices when device comes back from a low power state
- Snap alias available for nmcli
- WiFi powersave is configurable via snap configuration