DragonFly 1.10 was released on August 6, 2007. New to this release was the near completion of the new userland threading system, and native support for the protocol used by SATA controllers (which was imported from FreeBSD). SMP support for virtual kernels was also enabled as a testbed for the various new multiprocessing features. Additionally many cleanups were done in the disk layer, many wireless drivers, and the USB subsystem. An example of what the improvements in the VFS layer in combination with the USB cleanups allow is that the system is much more stable and unlikely to panic if mounted USB media is suddenly removed. The FreeBSD 4 derived ports system for installing third party applications was also retired. A fairly serious mbuf memory leak was discovered soon after the release and corrected, though there was not an immediate release of a new installation disk. The updated version 1.10.1 was released on August 22, 2007, complete with fixes for the issues in 1.10.0.