- Update to version 1.48.2:
+ Support matching a OVS system interface by MAC address.
+ Fix port reactivation when the controller is reactivating.
+ Save connection timestamps when shutting down, so that the
right connection autoactivates after restart.
+ Fix handling of VPN secrets for 2-factor authentication.

- Update to version 1.48.0:
+ Building with autotools is now deprecated and will be
completely removed in the next development cycle.
+ Support changing the OpenSSL ciphers for 802.1X authentication
via connection property "802-1x.openssl-ciphers".
+ The reason why a device is unmanaged is now properly set in the
"StateReason" property of the "Device" D-Bus object. The
property is visible in nmcli via "nmcli -f all device show
$DEV".
+ Deprecated 802-11-wireless and 802-11-wired property
'mac-address-blacklist' and introduced the
'mac-address-denylist' property.
+ Properly restore in-memory connection profiles during the
rollback of a checkpoint.
+ Fix detection of 6 GHz band capability for WiFi devices.
+ Allow IPv6 SLAAC and static IPv6 DNS server assignment for
modem broadband when IPv6 device address was not explicitly
passed on by ModemManager.
+ Fix a performance issue that was leading to 100% CPU usage by
NetworkManager if external programs were doing a big amount of
routes updates.
+ Patch-level development releases (i.e. 1.48.1-dev) won't be
used anymore. (forwarded request 1183344 from dimstar)