## Big-ticket items
-**Hardware and multiprocessor support** - This release supports a much larger variety of hardware and multiprocessor systems than previous releases, thanks to updates of ACPI and APIC support.
+**Hardware and multiprocessor support** - This release supports a much larger variety of hardware and multiprocessor systems than previous releases, thanks to updates of ACPI and APIC and ACPI interrupt routing support.
**Hammer Deduplication** - Hammer volumes can now deduplicate volumes overnight in a batch process and during live operation. The 'hammer dedup-simulate' command can be used to estimate space savings for existing data.
> ### Kernel changes
* Update of pf from OpenBSD 4.2 to 4.4, keeping DragonFly specific additions (support for pickups and fairq).
* mlockall(2)/munlockall(2) imported from FreeBSD
+ * devfs chown/chmod bug fixes
+ * Major overhaul of the device mapper (dm)
+ * dm_target_crypt now uses mpipe for memory allocations
+ * New kern.proc.cwd sysctl
+ * Major overhaul of the vn(4) driver
+ * Many sysctls now have a description
+ * msdosfs bug fixes
+ * mbuf now supports MJUMPAGESIZE
+ * kref - a new, very lightweight reference counting system
+ * Fix fstatfs() and fstatvfs() when called from a null-mounted chroot()
+ * Several subsystems switched from zalloc to objcache (ufs dirhash, NFS, aio, crypto)
* that
> ### Hardware changes (non-networking)
* mfi(4) RAID driver and mfiutil(8) configuration tool added.
* arcmsr(4) updated
* twe(4) updated
+ * amr(4) updated
+ * aac(4) updated
* hptmv(4) added
+ * hptiop(4) added
+ * dc(4) support for the Abocom FE2500
+ * tws(4) added, a driver for the LSI 3ware 9750 series SATA/SAS RAID controllers.
+ * aesni(4) bug fixes
+
> ### Hardware changes (networking)
* Wireless cards utilizing the following drivers are supported in this release: ath, iwi, iwn, ral, wi, wpi. (update me)
> ### Userland changes
-* libcrypt now supports sha256/512
-* that
+ * libcrypt now supports sha256/512
+ * The default password hash is now sha256
+ * dmsetup now supports remove_all
+ * utmpx and wtmpx support
+ * newfs now supports volume names
+ * hammer(8) now supports listing volumes
+ * New library libfsid, used to determine what FS is on a given volume
+ * New utility: devattr, exposes the libdevattr and kern_udev functionality
+ * fstat(1) now supports devfs
+ * that
> ### x86_64-specific changes
* Updated binutils to 2.21
* Updated acpica to 20110211
* Updated mdocml to 1.10.9
-* Updated aesni(4)
+* Updated gcc to 4.4.5
* Imported xz-5.0.0
+* Imported binutils 2.21