They introduced netplan, a project that promised to centralize the network configuration for all Ubuntu Linux operating system versions, including Desktop, Server, Cloud, and Core (Snappy) under a single file (e.g. /etc/netplan/*.yaml) instead of using /etc/network/interfaces files. The implementation of netplan in Ubuntu would mean the replacement of ifupdown and the ability of the installers to generate only those YAML-based network configuration files, giving Ubuntu developers the flexibility of dynamically switching between multiple backends like NetworkManager and systemd-networkd.