The latest release of the open source startup daemon systemd now no longer detects specific distributions and has turned fully distribution-agnostic. Another improvement in the new version enables the user to trigger system events at a calendar-based time rather than specifying it in relative or repeating time intervals. A new bootchart option also allows interested users to graph and analyse their boot process. Systemd's read-ahead logic has been improved so that it can detect if a btrfs file system is located on spinning media or an SSD; this allows it to behave accordingly to improve performance. This was previously only possible on ext4 file systems.
The removal of all distribution-specific code, or "#ifdeffery" as the release announcement puts it, takes the next step to make the daemon available to all Linux-based systems that want to use it.
rest here