With BUS1 not looking like it will come to fruition anytime soon as an in-kernel IPC mechanism and the kernel module for it not being touched since last March, the same developers continue pushing ahead with Dbus-Broker as the user-space implementation focused on D-Bus compatibility while being higher performing and more reliable than D-Bus itself…

Source: Phoronix – D-Bus Broker 22 Released With Option To Use Newer Kernel Features