NetworkManager 1.52 adds IPVLAN interface support, now allows manually configuring the authentication of LTE's initial EPS Bearer, support for the IPv6-only preferred DHCPv4 option, support automatically adding routes to DNS servers via new properties, supporting OCI in nm-cloud-setup, and adding support for the ethtool FEC mode.
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NetworkManager-1.52
Overview of changes since NetworkManager-1.50
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* Store interactive history in `$XDG_CACHE_HOME/nmcli-history` instead of `~/.nmcli-history`
* Add new ipv4.link-local=fallback to set an IPv4 link-local address when no other IPv4 is set.
* Remove support for building with Autotools
* Add IPVLAN interface support
* Allow to manually configure the authentication of LTE's initial EPS Bearer.
* Add support for the "IPv6-only preferred" DHCPv4 option (RFC 8925), used to indicate that a host supports an IPv6-only mode and is willing to forgo obtaining an IPv4 address if the network provides IPv6 connectivity.
* Support automatically adding routes to DNS servers via the ipv4.routed-dns and ipv6.routed-dns properties; when enabled, each name server is reached only via the device that specifies it.
* Support OCI in nm-cloud-setup
* Added support for ethtool FEC mode
* Add new ipv4.shared-dhcp-range and ipv4.shared-dhcp-lease-time, which allows you to customize the DHCP range and lease time offered by DHCP server in `shared` connection method.
* DNS servers can now be specified with a URI-like syntax which supports DNS over TLS name servers.
* The initrd-generator understands the "rd.net.dns" option to configure global name servers.
* Drop support for the "dhcpcanon" DHCP client.
* global-dns configuration section now has 2 additional keys: "resolve-mode" and "certification-authority".
* Dnsconfd plugin can now be used for configuration of system-wide DNS caching resolver. If dnsconfd plugin is enabled and ipvX.routed-dns is set to -1 then adding routes is by default enabled.
* Add "shared" method to the IPv6 configuration options in nmtui.
NetworkManager 1.52 can be downloaded from the FreeDesktop.org GitLab .
An early feature already merged for what will become NetworkManager 1.54 is adding systemd services to provide networking in the initrd.