* vfs_sync
* vm_zeroidle
* vnode_pager
-* Additional subsystems that are now MPSAFE: protocol drain routines, pf packet filter, kevent.
+* Additional subsystems that are now MPSAFE: protocol drain routines, pf packet filter, kevent. The ahci and sili drivers and tty's have also received the treatment.
> ### Userland changes
* A catastrophic recovery command was added to the hammer(8) utility, allowing data to be potentially recovered from physically damaged media.
* OpenSSL can now load engines at run-time.
* Various vkernel updates including support for diskless operation.
* nmalloc (libc malloc) gained a per-thread magazine layer for improved scalability.
-* A security issue in the libc globbing code was fixed.
> ### amd64-specific changes
* A number of rare race conditions was fixed. This improves overall stability.
>### Security related
* Improved stability of tmpfs so that a simple user can't panic the system due to kva exhaustion.
+* A security issue in libopie was fixed.
+* A security issue in the libc globbing code was fixed.
>### Big-ticket items