# DragonFly Release 2.4 - XXX $date

The DragonFly 2.4 release is here! XXX release text here

Three release options are now available:  Our bare-bones CD ISO, a DVD ISO which includes a fully operational X environment, and a bare-bones bootable USB disk-key image (less than XXX M).

## Availability

The release ISO images should be available on most of the [[mirrors|mirrors]]. If the ISO is not available on a certain mirror, please try another one or download it from the DragonFly FTP server.

### MD5 sums

* MD5 (dfly-2.2.0_REL.iso) = 
* MD5 (dfly-gui-2.2.0_REL.iso) =
* MD5 (dfly-img-2.2.0_REL.img) =
* MD5 (dfly-2.2.0_REL.iso.gz) = 
* MD5 (dfly-gui-2.2.0_REL.iso.gz) = 
* MD5 (dfly-img-2.2.0_REL.img.gz) = 

### pkgsrc packages

We offer over XXXX pre-built [pkgsrc](http://www.pkgsrc.org) packages for this release.   The [pkg_radd(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_radd&section=ANY) utility may be used to download pre-built binary packages.  By default this script will query the main package site for a random redirect to one of our mirrors.  The path can be overridden by setting BINPKG_SITES in /etc/settings.conf.

To get a list of all packages, let [pkg_search(1)](http://leaf.dragonflybsd.org/cgi/web-man?command=pkg_search&section=ANY) download the summary file for that release:

    # pkg_search -d

## DragonFly 2.4.0 Release Notes

### Release Improvements

### Kernel changes

 
 * Bring in <tt>BUS_DMA_COULD_BOUNCE</tt> flag from FreeBSD.
 * usched_set: Add USCHED_CPU_GET for retrieving the current CPU
 * msdosfs: Fixed a number of bugs
 * vkernel: Fix entry into ddb when running a SMP vkernel.  Fixes stop/cont
 * Add disklabel64 UFS + HAMMER boot support (was previously just HAMMER boot support)
 * Sync DRM code with FreeBSD trunk rev 190433.
 * Fix an IPI messaging lockup which can occur while in DDB.
 * vkernel: Fix startup race with I/O cothread support.
 * vkernel: Fix some issues - enable ithread preemption, races, and more.
 * vkernel: Fix races in stopsig() and ipisig().
 * Fix permissions check for utimes() - owner can call even if u-w.
 * Reimplemented the revoke code.
 * Replace the old BSD malloc code with a port of our slab allocator.
 * Fix various clang compile issues
 * Add HPET cputimer.
 * Add lapic timer and enable it by default.
 * Add kernel-layer support for chflags checks, remove (most) from the VFS layer.

#### HAMMER changes

 * Fix improper cred checks for utimes()
 * Return shorter-form softlinks "@@-1:%05d" when appropriate.
 * Add a B-Tree rebalancing feature.
 * Fix edge case in mirroring code.
 * Better CRC handling, bad-file handling.
 * Fix sticky bit directory handling for deletions.
 * Refactor merged search function to try to avoid missed entries.
 * Limit recursion for long directory chains, update mtime/ctime.

### Hardware changes

 * cxm(4): Add new driver for Hauppauge PVR-250/350 video capture cards (from FreeBSD).
 * ath(4): Add open source HAL code (from FreeBSD) and make it possible to build it into the kernel.

#### Networking

 * em(4): Synced with Intel's em-6.9.6 (from FreeBSD).
 * emx(4): Copy of em(4) which supports only 8257{1,2,3} parts.
 * iwi(4): Upgrade to use 3.0 firmware and use firmware(9) API to load firmware.
 * vke(4): Convert from kqueue API to cothread API.
 * tap(4): Add ifclone support
 * Turn on adaptive MPSAFE for network threads, and MPSAFE for IP and ARP
 * RSS: Add Toeplitz hash function
 * Split ifnet serializer.
 * Add ifpoll, which support hardware TX/RX queues based polling.

### Userland changes

 * Fix a huge number of compiler warnings for various userland utilities.
 * installer: Fix the bug when used from console with the LiveDVD.
 * installer: Fixed various bugs and cleaned the code.
 * expr(1): Add support for -- as required by POSIX
 * ifconfig(8): Add static ARP support
 * cpdup(1): Allow uid/gid/flags changes to fail if running as user
 * pax(1): Add a -O option: force one volume (from NetBSD)
 * battd(8): Fix some errors and improve the man page
 * magic(3): Fix program name extraction from core dumps.
 * env(1): unbreak build of 2.2 release branch under HEAD
 * telnetd(8): Apply FreeBSD-SA-09:05.telnet - fix environment based code execution vulnerability
 * libkvm: Add support for accessing a running vkernel's memory by reading its /proc/$pid/mem file.
 * ncal(1): Highlight current day (from FreeBSD)
 * libfetch(3): Synced with FreeBSD.
 * fetch(1): Synced with FreeBSD.
 * window(1): Synced with NetBSD.
 * vkentd(8): Add features, allow IP address to be set in unsecure mode, allow address 0.
 * etc/rc.d/sendmail: Actually execute sendmail_precmd().
 * libc: Synced various parts with FreeBSD and NetBSD.
 * libc: Add some new system calls.
 * libc: Apply FreeBSD-SA-09:07.libc - fix information leak in db(3)
 * syslogd(8): Sync with FreeBSD
 * undo(1): Fix @@ formatting used by undo -ad and fix duplicate test
  * Use a Red-Black tree to track HAMMER TIDs
  * It can now detect all prior replacements of a file
  * Add an indexing feature to the -t option
 * hammer(8): Allow -b to specify bytes per second if no suffix is supplied
  * Extract PFS null mounts from anywhere in the filesystem, instead of just from the /pfs subdirectory. 
  * Change B-Tree, inodes, and dir reblocking params, add rebalance

### amd64 related changes

 * Make signals operational, fix reg mappings, fix %fs management, trace
 * More signal handler work.  Signals now appear to work..
 * Fixes to make dynamic binaries run.
 * First steps towards 64-bit pmap.
 * Fix a huge number of compiler warnings for various userland utilities.
 * Misc fixes for cross-building amd64.
 * Add a build system for amd64 build/test environments

### Removals

 * iwicontrol(8) was removed. The iwi(4) firmware is now loaded automatically.

### Contributed Software

* Update OpenSSH to version .
* Update OpenSSL to version 0.9.8k.
* Sync zoneinfo database with tzdata2009h.