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4<!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
5 %release;
6]>
7<article xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
8<info><title>&os; &release.current; Release Notes</title>
9  
10
11  <author><orgname>The &os; Project</orgname></author>
12
13  <pubdate>$FreeBSD: stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml 259809 2013-12-24 05:17:24Z rodrigc $</pubdate>
14
15  <copyright>
16    <year>2000</year>
17    <year>2001</year>
18    <year>2002</year>
19    <year>2003</year>
20    <year>2004</year>
21    <year>2005</year>
22    <year>2006</year>
23    <year>2007</year>
24    <year>2008</year>
25    <year>2009</year>
26    <year>2010</year>
27    <year>2011</year>
28    <year>2012</year>
29    <year>2013</year>
30    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
31  </copyright>
32
33  <legalnotice xml:id="trademarks" role="trademarks">
34    &tm-attrib.freebsd;
35    &tm-attrib.ibm;
36    &tm-attrib.ieee;
37    &tm-attrib.intel;
38    &tm-attrib.sparc;
39    &tm-attrib.general;
40  </legalnotice>
41
42  <abstract>
43    <para>The release notes for &os; &release.current; contain a summary
44      of the changes made to the &os; base system on the
45      &release.branch; development line.
46      This document lists applicable security advisories that were issued since
47      the last release, as well as significant changes to the &os;
48      kernel and userland.
49      Some brief remarks on upgrading are also presented.</para>
50  </abstract>
51</info>
52
53<sect1 xml:id="intro">
54  <title>Introduction</title>
55
56  <para>This document contains the release notes for &os;
57    &release.current;.  It
58    describes recently added, changed, or deleted features of &os;.
59    It also provides some notes on upgrading
60    from previous versions of &os;.</para>
61
62  <para releasetype="current">The &release.type; distribution to which these release notes
63    apply represents the latest point along the &release.branch; development
64    branch since &release.branch; was created.  Information regarding pre-built, binary
65    &release.type; distributions along this branch
66    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
67
68  <para releasetype="snapshot">The &release.type; distribution to which these release notes
69    apply represents a point along the &release.branch; development
70    branch between &release.prev; and the future &release.next;.
71    Information regarding
72    pre-built, binary &release.type; distributions along this branch
73    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
74
75  <para releasetype="release">This distribution of &os; &release.current; is a
76    &release.type; distribution.  It can be found at <uri xlink:href="&release.url;">&release.url;</uri> or any of its mirrors.  More
77    information on obtaining this (or other) &release.type;
78    distributions of &os; can be found in the <link xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
79    &os;</quote> appendix</link> to the <link xlink:href="&url.books.handbook;/">&os;
80    Handbook</link>.</para>
81
82  <para>All users are encouraged to consult the release errata before
83    installing &os;.  The errata document is updated with
84    <quote>late-breaking</quote> information discovered late in the
85    release cycle or after the release.  Typically, it contains
86    information on known bugs, security advisories, and corrections to
87    documentation.  An up-to-date copy of the errata for &os;
88    &release.current; can be found on the &os; Web site.</para>
89
90</sect1>
91
92<sect1 xml:id="new">
93  <title>What's New</title>
94
95  <para>This section describes
96    the most user-visible new or changed features in &os;
97    since &release.prev;.
98    In general, changes described here are unique to the &release.branch;
99    branch unless specifically marked as &merged; features.
100  </para>
101
102  <para>Typical release note items
103    document recent security advisories issued after
104    &release.prev;,
105    new drivers or hardware support, new commands or options,
106    major bug fixes, or contributed software upgrades.  They may also
107    list changes to major ports/packages or release engineering
108    practices.  Clearly the release notes cannot list every single
109    change made to &os; between releases; this document focuses
110    primarily on security advisories, user-visible changes, and major
111    architectural improvements.</para>
112
113  <sect2 xml:id="security">
114    <title>Security Advisories</title>
115
116    <para/>
117
118  </sect2>
119
120  <sect2 xml:id="kernel">
121    <title>Kernel Changes</title>
122
123    <para revision="248508">The use of unmapped VMIO buffers eliminates the need to perform
124      TLB shootdown for mapping on buffer creation and reuse, greatly reducing the
125      amount of IPIs for shootdown on big-SMP machines and eliminating up to 25-30%
126      of the system time on i/o intensive workloads.</para>
127
128    <para arch="amd64" revision="254466">The maximum amount of memory the &os; kernel
129      can address has been increased from 1TB to 4TB.</para>
130
131    <para>A new &man.cpuset.2; API has been added
132      for thread to CPU binding and CPU resource grouping and
133      assignment.  The &man.cpuset.1; userland utility has been added
134      to allow manipulation of processor sets.</para>
135
136    <para role="merged">The &man.ddb.4; kernel debugger now has an output capture
137      facility.  Input and output from &man.ddb.4; can now be captured
138      to a memory buffer for later inspection using &man.sysctl.8; or
139      a textdump.  The new <command>capture</command> command controls
140      this feature.</para>
141
142    <para role="merged">The &man.ddb.4; debugger now supports a simple scripting
143      facility, which supports a set of named scripts consisting of a
144      set of &man.ddb.4; commands.  These commands can be managed from
145      within &man.ddb.4; or with the use of the new &man.ddb.8;
146      utility.  More details can be found in the &man.ddb.4; manual
147      page.</para>
148
149    <para role="merged">The kernel now supports a new textdump format of kernel
150      dumps.  A textdump provides higher-level information via
151      mechanically generated/extracted debugging output, rather than a
152      simple memory dump.  This facility can be used to generate brief
153      kernel bug reports that are rich in debugging information, but
154      are not dependent on kernel symbol tables or precisely
155      synchronized source code.  More information can be found in the
156      &man.textdump.4; manual page.</para>
157
158    <para>Kernel support for M:N threading has been removed.  While
159      the KSE (Kernel Scheduled Entities) project was quite successful
160      in bringing threading to FreeBSD, the M:N approach taken by the
161      KSE library was never developed to its full potential.
162      Backwards compatibility for applications using KSE threading
163      will be provided via &man.libmap.conf.5; for dynamically linked
164      binaries.  The &os; Project greatly appreciates the work of
165      &a.julian;, &a.deischen;, and &a.davidxu; on KSE support.</para>
166
167    <para>The &os; kernel now exports information about certain kernel
168      features via the <varname>kern.features</varname> sysctl tree.
169      The &man.feature.present.3; library call provides a convenient
170      interface for user applications to test the presence of
171      features.</para>
172
173    <para arch="amd64">The &os; kernel now has support for large
174      memory page mappings (<quote>superpages</quote>).</para>
175
176    <para arch="amd64,i386,ia64,powerpc" role="merged">The ULE
177      scheduler is now the default process scheduler
178      in <filename>GENERIC</filename> kernels.</para>
179
180    <para arch="amd64,i386" revision="240135">Support was added for
181      the new Intel on-CPU Bull Mountain random number
182      generator, found on IvyBridge and supposedly later CPUs,
183      accessible with RDRAND instruction.</para>
184
185    <sect3 xml:id="kernel-virtualization">
186      <title>Virtualization support</title>
187      <para arch="amd64" revision="245652">The BSD Hypervisor, &man.bhyve.8; is included
188        with &os;.  &man.bhyve.8; requires Intel CPUs with VT-x and Extended Page Table (EPT)
189        support. These features are on all Nehalem models and beyond
190        (e.g. Nehalem and newer), but not on the lower-end Atom CPUs.</para> 
191  
192      <para revision="227652">&man.virtio.4; support has been added.  &man.virtio.4; is the
193        name for the paravirtualization interface developed for the Linux KVM, but
194        since adopted to other virtual machine hypervisors (with the notable exception of Xen).
195        This work brings in a BSD-licensed clean-room implementation of the virtio kernel drivers
196        for disk IO (&man.virtio_blk.4; and &man.virtio_scsi.4;), network IO (&man.vtnet.4;),
197        memory ballooning (&man.virtio_balloon.4;), and PCI.
198        Tested with on Qemu/KVM, VirtualBox, and &man.bhyve.4;.</para>
199  
200      <para arch="amd64,i386" revision="255524">Paravirtualized drivers which
201        support Microsoft Hyper-V have been imported and made
202        part of the amd64 GENERIC kernel.  For i386, these drivers are not part of
203        GENERIC, so the following lines must be added to
204        <filename>/boot/loader.conf</filename> to load these drivers:
205        <programlisting>hv_ata_pci_disengage_load="YES"
206hv_netsvc_load="YES"
207hv_utils_load="YES"
208hv_vmbus_load="YES"</programlisting>  Alternatively, the Hyper-V drivers can be added to the i386
209        kernel by adding <literal>device hyperv</literal> to the kernel config, and then
210        recompiling the kernel.  Please refer to:
211        <link xlink:href="http://wiki.freebsd.org/HyperV">FreeBSD and Microsoft Windows Server Hyper-V support</link>
212        for full instructions on how to set up Hyper-V support under FreeBSD.</para>
213
214      <para revision="254738">The &man.vmx.4; driver has been added.
215        &man.vmx.4; is a VMware VMXNET3 ethernet driver ported from
216        OpenBSD.</para>
217
218      <para revision="255744" arch="amd64,i386">Xen PVHVM virtualization is now
219        part of the GENERIC kernel.</para>
220
221    </sect3>
222
223    <sect3 xml:id="kernel-arm">
224      <title>ARM support</title>
225
226      <para revision="239922">Raspberry PI support has been added.
227        Refer to these <link xlink:href="http://kernelnomicon.org/?p=164">setup instructions</link>
228        and <link xlink:href="http://www.raspberrypi.org/quick-start-guide">quick start
229        guide</link>.</para>
230  
231      <para revision="253396">The default ABI on ARM is now the ARM EABI. This brings a number of
232        improvements and allows future support for VFP and Thumb-2.</para> 
233  
234      <para revision="239268">ARM support has been greatly improved, including support
235        for ARMv6 and ARMv7, SMP and thread-local storage (TLS).
236        Additionally support for some newer SoC like the MV78x60 and OMAP4 was added.
237        See <link xlink:href="http://lists.freebsd.org/pipermail/freebsd-arm/2012-August/003757.html">this announcement</link>
238        for further details.</para>
239  
240      <para revision="254918">Superpages support on ARM has been added.  Superpages support
241        provides improved performance and scalability by allowing TLB
242        translations to dynamically cover large physical memory regions.
243        All ARMv6 and ARMv7-based platforms can take advantage of this feature.
244        See <link xlink:href="https://wiki.freebsd.org/ARMSuperpages">this page</link>
245        for further details.</para>
246
247    </sect3>
248
249    <sect3 xml:id="boot">
250      <title>Boot Loader Changes</title>
251
252      <para arch="amd64,i386" role="merged">The BTX kernel used by the boot
253	loader has been changed to invoke BIOS routines from real
254	mode.  This change makes it possible to boot &os; from USB
255	devices.</para>
256
257      <para arch="amd64,i386" role="merged">A new gptboot boot loader has
258        been added to support booting from a GPT labeled disk.  A
259        new <command>boot</command> command has been added to
260        &man.gpt.8;, which makes a GPT disk bootable by writing the
261        required bits of the boot loader, creating a new boot
262        partition if required.</para>
263
264    </sect3>
265
266    <sect3 xml:id="proc">
267      <title>Hardware Support</title>
268
269      <para role="merged">The &man.cmx.4; driver, a driver for Omnikey CardMan 4040
270        PCMCIA smartcard readers, has been added.</para>
271
272      <para>The &man.syscons.4; driver now supports Colemak keyboard layout.</para>
273
274      <para role="merged">The &man.uslcom.4; driver, a driver for Silicon
275        Laboratories CP2101/CP2102-based USB serial adapters, has been
276        imported from OpenBSD.</para>
277
278      <sect4 xml:id="mm">
279	<title>Multimedia Support</title>
280
281        <para revision="240609">Support for version 2.0 of the USB Audio reference design
282          has been added. New devices should support higher bandwidth,
283          increased sampling frequency and wider dynamic range.</para>
284
285      </sect4>
286
287      <sect4 xml:id="net-if">
288	<title>Network Interface Support</title>
289
290	<para>The &man.ale.4; driver has been added to provide support
291	  for Atheros AR8121/AR8113/AR8114 Gigabit/Fast Ethernet controllers.</para>
292
293	<para>The &man.em.4; driver has been split into two drivers
294	  with some common parts.  The &man.em.4; driver will continue
295	  to support adapters up to the 82575, as well as new
296	  client/desktop adapters.  A new &man.igb.4; driver
297	  will support new server adapters.</para>
298
299	<para>The &man.jme.4; driver has been added to provide support
300	  for PCIe network adapters based on JMicron JMC250 Gigabit
301	  Ethernet and JMC260 Fast Ethernet controllers.</para>
302
303	<para>The &man.malo.4; driver has been added to provide
304	  support for Marvell Libertas 88W8335 based PCI network
305	  adapters.</para>
306
307	<para>The firmware for the &man.mxge.4; driver has been
308	  updated from 1.4.25 to 1.4.29.</para>
309
310	<para>The &man.sf.4; driver has been overhauled to improve its
311	  performance and to add support for checksum offloading.  It
312	  should also work on all architectures.</para>
313
314	<para>The &man.re.4; driver has been overhauled to fix a
315	  number of issues.  This driver now has Wake On LAN (WOL)
316	  support.</para>
317
318	<para>The &man.vr.4; driver has been overhauled to fix a
319	  number of outstanding issues.  It also now works on all
320	  architectures.</para>
321
322	<para arch="amd64,i386" role="merged">The &man.wpi.4; driver has
323	  been updated to include a number of stability fixes.</para>
324
325	<para revision="248925">The &man.cxgbe.4; driver has been updated to support
326	  40G/10G Ethernet NICs based on Chelsio's Terminator 5 (T5) ASIC.</para>
327
328	<para revision="256694">The iw_cxgbe driver has been added.  This is an
329	  experimental iWARP/RDMA driver
330	  (kernel verbs only) for Chelsio's T4 and T5 based cards.</para>
331
332	<para revision="255932">The Open Fabrics Enterprise Distribution (OFED) and
333	  OFED Infiniband core has been
334	  updated to the same version as supplied by Linux version 3.7</para>
335
336	<para revision="255932">The Mellanox Infiniband driver has been updated to firmware
337	  version 2.30.3200 for ConnectX3 NICs.  Support has been added for ConnectX3 VPI NICs, where
338	  each port can be used as Infiniband 56 GB/s or Ethernet 40 GB/s.  Support has been added
339	  for dynamically loading kernel modules for Infiniband core (ibcore) and
340	  IP over Infiniband (ipoib).</para>
341
342	<para revision="227614">&man.netmap.4; has been added.  &man.netmap.4; is a framework for
343          high-performance direct-to-hardware packet IO, offering low latency and high PPS
344          rates to userland applications while bypassing any kernel-side packet processing.
345          With &man.netmap.4; it is trivially possible to fully saturate a 10 Gbps network interface with
346          minimal packet sizes.  For more information, see:
347          <link xlink:href="http://info.iet.unipi.it/~luigi/netmap/">Netmap Project</link>.</para> 
348
349      </sect4>
350    </sect3>
351
352    <sect3 xml:id="net-proto">
353      <title>Network Protocols</title>
354
355      <para revision="228571">&man.carp.4; has been rewritten to make addresses
356        more sane from the viewpoint of routing daemons such as
357        quagga/zebra. It also brings support for a single redundant
358        address on the subnet (carpdev), switching state with
359        &man.ifconfig.8;, better locking and using modern kernel
360        interfaces to allocate multicast memberships.
361        Configuration of the CARP protocol via &man.ifconfig.8; has changed, as well as format
362	of CARP events submitted to &man.devd.8; has changed. See &man.carp.4;
363	for more information. The arpbalance feature of &man.carp.4; is currently
364	not supported anymore.</para>
365
366      <para revision="240233">The &man.pf.4; firewall now supports fine-grain locking
367        and better utilization on multi-cpu machines resulting in
368        significant improvements in performance.</para>
369
370      <para revision="250700">Support for up to 65536 routing tables has been
371        introduced.</para>
372
373      <para revision="248552">Support for setting/matching differentiated services
374        codepoints (DSCP) in IP header has been added to
375        &man.ipfw.8;.</para>
376
377    </sect3>
378
379    <sect3 xml:id="disks">
380      <title>Disks and Storage</title>
381
382      <para role="merged">The &man.aac.4; driver now supports volumes larger than
383        2TB in size.</para>
384
385      <para>The &man.ata.4; driver now supports a spindown command for
386        disks; after a configurable amount of time, if no requests
387        have been received for a disk, the disk will be spun down
388        until the next request.  The &man.atacontrol.8; utility now
389        supports a <command>spindown</command> command to configure
390        this feature.</para>
391
392      <para role="merged">The &man.hptrr.4; driver has been updated to version 1.2
393        from Highpoint.</para>
394
395      <para revision="240616">&man.nvme.4; has been added and provides NVM Express support.
396        NVM Express is an optimized register interface, command set and feature set of
397        PCI Express (PCIe)-based Solid-State Drives (SSDs).  For more information,
398        see <link xlink:href="http://http://www.nvmexpress.org/">nvmexpress.org</link>.</para>
399
400    </sect3>
401
402    <sect3 xml:id="fs">
403      <title>File Systems</title>
404
405      <para revision="255570">A new kernel-based iSCSI target and initiator has been
406        added</para>
407
408      <para revision="243246">UFS filesystems can now be enlarged with &man.growfs.8; while
409        mounted read-write. This is especially useful for virtual
410        machines, allowing the addition of more harddrive space without
411        interruption of service.</para>
412
413      <para revision="241519">A state of the art FUSE implementation is now part of the
414        base system. It allows the use of nearly all fusefs file
415        systems</para>
416
417      <sect4 xml:id="fs-zfs">
418	<title>ZFS</title>
419
420        <para revision="">&man.bsdinstall.8; now supports installing
421          ZFS on the root file system.  It includes a single configuration menu
422          that allows you to select all of the required details, including
423          which drives to use, what ZFS RAID level to use (taking into consideration
424          the selected number of drives), GPT or MBR, GELI encryption, forcing 4K sectors,
425          pool name, etc.</para>
426
427        <para revision="240868">TRIM support has been added for
428          ZFS.</para>
429
430        <para revision="246586">Support for the high performance LZ4 compression algorithm
431          has been added to ZFS. LZ4 is usually faster and can achieve a
432          higher compression ratio than LZJB, the default compression
433          algorithm</para>
434
435        <para revision="252140">Support for L2ARC compression has been added to ZFS.</para>
436
437        <para revision="243524">The zio nop-write improvement from Illumos
438          was imported into &os;. To reduce I/O, nop-write skips overwriting
439          data if the checksum (cryptographically secure) of new data
440          matches the checksum of existing data. It also saves space if
441          snapshots are in use.  This improvement only works only on
442          datasets with enabled compression, disabled deduplication and
443          sha256 checksums.</para>
444
445        <para>ZFS will now compare the checksums of incoming writes to
446          the checksum of the existing on-disk data and avoid issuing any
447          write I/O for data that has not changed. This will reduce I/O
448          as well as space usage because if the old block is referenced
449          by a snapshot, both copies of the block are kept even though
450          both contain the same data.</para>
451
452      </sect4>
453
454    </sect3>
455
456  </sect2>
457
458  <sect2 xml:id="userland">
459    <title>Userland Changes</title>
460
461   <para revision="255321">On platforms where &man.clang.1; is the default
462      system compiler, (such as i386, amd64, arm) GCC and GNU libstdc++ are no
463      longer built by default.  &man.clang.1; and libc++ from LLVM are used on
464      these platforms by instead.  GCC 4.2.1 and libstdc++ are still built
465      and used by default on pc98 and all other platforms where &man.clang.1;
466      is not the default system compiler.
467   </para>
468
469   <para revision="251662">&man.clang.1; and llvm have been updated to
470     version 3.3 release.  Please refer to
471     <link xlink:href="http://llvm.org/releases/3.3/tools/clang/docs/ReleaseNotes.html">
472     Clang 3.3 Release Notes.</link></para>
473
474    <para role="merged" revision="255949">BIND has been replaced by &man.unbound.8; for
475      local dns resolution in the base system.  With this change, nslookup
476      and dig are no longer a part of the base system.  Users should
477      instead use &man.host.1; and &man.drill.1; Alternatively,
478      nslookup and dig can be obtained by installing the
479      dns/bind-tools port.</para>
480
481    <para revision="225937">sysinstall has been removed from the base system.
482      Auxiliary libraries and tools used by sysinstall such as libdisk, libftpio,
483      and sade have also been removed.  sysinstall has been replaced by
484      &man.bsdinstall.8; and &man.bsdconfig.8;.</para>
485
486    <para revision="256106">&man.freebsd-version.1; has been added.  This tool
487      makes a best effort to determine the version and patch level of
488      the installed kernel and userland.</para>
489
490    <para revision="255191">GNU patch has been removed from the base system, and replaced
491      by a BSD-licensed &man.patch.1; program.</para>
492
493    <para revision="241511">GNU sort has been removed from the base system, and replaced
494      by a BSD-licensed &man.sort.1; program.</para>
495
496    <para revision="235723">Berkely yacc (byacc) has been imported
497      from <link xlink:href="http://invisible-island.net/byacc/">invisible island</link>.
498      This brings bison compatibilities to &man.yacc.1; while preserving full
499      backwards compatibility with previous version of &man.yacc.1;.</para>
500
501    <para revision="250881">&man.lex.1; has been replaced by flex 2.5.37</para>
502
503    <para revision="250699">&man.make.1; has been replaced with the 
504      "Portable" BSD make tool (bmake) from NetBSD.</para>
505
506    <para role="merged">The &man.adduser.8; utility now supports
507      a <option>-M</option> option to set the mode of a new user's
508      home directory.</para>
509
510    <para>BSD-licensed versions of &man.ar.1; and &man.ranlib.1;,
511      based on <filename>libarchive</filename>, have replaced the GNU
512      Binutils versions of these utilities.</para>
513
514    <para>BSD-licensed versions of &man.bc.1; and &man.dc.1; have
515      replaced their GNU counterparts.</para>
516
517    <para role="merged">&man.chflags.1; now supports a <option>-v</option> flag for
518      verbose output and a <option>-f</option> flag to ignore errors
519      with the same semantics as (for example)
520      &man.chmod.1;.</para>
521
522    <para>For compatibility with other implementations, &man.cp.1; now
523      supports a <option>-a</option> flag, which is equivalent to
524      specifying the <option>-RrP</option> flags.</para>
525
526    <para>BSD-licensed version of &man.cpio.1; based on
527      <filename>libarchive</filename>, has replaced the GNU cpio.
528      Note that the GNU cpio is still installed as
529      <filename>gcpio</filename>.</para>
530
531    <para>The &man.env.1; program now supports <option>-u
532      <replaceable>name</replaceable></option>
533      which will completely unset the given variable
534      <replaceable>name</replaceable> by removing it from the environment,
535      instead of just setting it to a null value.</para>
536
537    <para>The &man.fdopendir.3; library function has been added.</para>
538
539    <para role="merged">The &man.fetch.3; library now support HTTP 1.1
540      If-Modified-Since behavior.  The &man.fetch.1; program now
541      supports <option>-i <replaceable>filename</replaceable></option>
542      which will only download the specified HTTP URL if the content
543      is newer than <replaceable>filename</replaceable>.</para>
544
545    <para>&man.find.1; has been enhanced by the addition of a number
546      of primaries that were present in GNU find but not &os;
547      &man.find.1;.</para>
548
549    <para>&man.kgdb.1; now supports a new <command>add-kld</command>
550      command to make it easier to debug crash dumps with kernel
551      modules.</para>
552
553    <para>The &man.ls.1; program now supports a <option>-D</option>
554      option to specify a date format string to be used with the long
555      format (<option>-l</option>) output.</para>
556
557    <para>&man.nc.1; now supports a <option>-O</option> switch to
558      disable the use of TCP options.</para>
559
560    <para>&man.nc.1;'s <option>-o</option> switch has been deprecated.
561      It will be removed in a future release.</para>
562
563    <para>The &man.ping6.8; utility now returns <literal>2</literal>
564      when the packet transmission was successful but no responses
565      were received (this is the same behavior as &man.ping.8;).
566      It returned a non-zero value before this change.</para>
567
568    <para>The &man.procstat.1; utility has been added to display
569      detailed information about processes.</para>
570
571    <para role="merged">The &man.realpath.1; utility now supports
572      a <option>-q</option> flag to suppress warnings; it now also
573      accepts multiple paths on its command line.</para>
574
575    <para>&man.sh.1; has many bug fixes, some new features, and will now
576      refuse to parse some invalid scripts.  Additionally, it now
577      has filename completion and defaults to the &quot;emacs&quot; editing
578      mode.</para>
579
580    <para>The &man.split.1; utility now supports a <option>-n</option>
581      flag to split a file into a certain number of chunks.</para>
582
583    <para>The &man.tar.1; utility now supports a <option>-Z</option>
584      flag to enable &man.compress.1;-style
585      compression/decompression.</para>
586
587    <para>The &man.tar.1; utility now supports a
588      <option>--numeric-owner</option> flag to ignore user/group names
589      on create and extract.</para>
590
591    <para>The &man.tar.1; utility now supports an
592      <option>-S</option> flag to sparsify files on extraction.</para>
593
594    <para>The &man.tar.1; utility now supports a <option>-s</option>
595      flag to substitute filenames based on the specified regular
596      expression.</para>
597
598    <para>The &man.tcgetsid.3; library function has been added to
599      return the process group ID for the session leader for the
600      controlling terminal.  It is defined in IEEE Std 1003.1-2001
601      (POSIX).</para>
602
603    <para>&man.top.1; now supports a <option>-P</option> flag to
604      provide per-CPU usage statistics.</para>
605
606    <para>&man.zdump.8; is now working properly on 64 bit architectures.
607      </para>
608
609    <para>&man.traceroute.8; now has the ability to print the AS
610      number for each hop with the new <option>-a</option> switch; a
611      new <option>-A</option> option allows selecting a particular
612      WHOIS server.</para>
613
614    <para>&man.traceroute6.8; now supports a <option>-U</option> flag
615      to send probe packets with no upper-layer protocol, rather than
616      the usual UDP probe packets.</para>
617
618    <sect3 xml:id="rc-scripts">
619      <title><filename>/etc/rc.d</filename> Scripts</title>
620
621      <para/>
622
623    </sect3>
624  </sect2>
625
626  <sect2 xml:id="contrib">
627    <title>Contributed Software</title>
628
629    <para revision="251300">&man.jemalloc.3; has been updated to 3.4.0.
630      See <link xlink:href="http://www.facebook.com/jemalloc/">this link</link>.
631      for more details.</para>
632
633    <para role="merged"><application>AMD</application> has been updated from 6.0.10
634      to 6.1.5.</para>
635
636    <para role="merged"><application>awk</application> has been updated from 1 May
637      2007 release to the 23 October 2007 release.</para>
638
639    <para role="merged"><application>bzip2</application> has been updated from 1.0.4
640      to 1.0.5.</para>
641
642    <para revision="251794"><application>CVS</application> has been removed from the
643    base system, but is still available from ports</para>
644
645    <para revision="251886">Subversion has been imported into the base system and
646      is installed as <application>svnlite</application>.  <application>svnlite</application>
647      should only be used for checking out &os; source and committing, and does not
648      replace the full Subversion port.</para>
649
650    <para revision="234449"><application>file</application> has been updated to 5.11.</para>
651
652    <para revision="252726"><application>hostapd</application> has been
653      updated from 0.5.8 to 0.5.10.</para>
654
655    <para><application>IPFilter</application> has been updated to 5.1.2.</para>
656
657    <para revision="250592"><application>less</application> has been updated to
658      v458.</para>
659
660    <para><application>ncurses</application> has been updated from
661      to 5.7-20081102.</para>
662
663    <para role="merged"><application>OpenSSH</application> has been updated
664      to 6.4.</para>
665
666    <para revision="236109"><application>OpenPAM</application> has been updated to
667      the Micrampelis release.</para>
668
669    <para role="merged"><application>sendmail</application> has been updated from
670      8.14.1 to 8.14.7.</para>
671
672    <para role="merged">The timezone database has been updated from
673      the <application>tzdata2008h</application> release to
674      the <application>tzdata2009m</application> release.</para>
675
676    <para>The stdtime part of libc, &man.zdump.8; and &man.zic.8;
677      have been updated from the <application>tzcode2004a</application>
678      release to the <application>tzcode2009h</application> release.
679      If you have upgraded from source or via the &man.freebsd-update.8;,
680      then please run &man.tzsetup.8; to install a new /etc/localtime.
681      </para>
682
683    <para revision="252726"><application>WPA Supplicant</application> has been
684      updated to 2.0.</para>
685
686    <para role="merged"><application>xz</application> has been updated
687      from snapshot as of 12 April 2010 to 5.0.0.</para>
688
689    <para revision="258231" role="merged">&man.nvi.1; has been updated to 2.1.2.</para>
690
691    <para revision="254225">&man.nvi.1; supports wide character locales.</para>
692
693  </sect2>
694
695  <sect2 xml:id="ports">
696    <title>Ports/Packages Collection Infrastructure</title>
697
698    <para revision="257444">The pkg_add, pkg_create, pkg_delete, pkg_info,
699      pkg_updating, and pkg_version utilities have been removed.
700      &man.pkg.7; must now be used to install binary packages.  &man.pkg.7;
701      is the next generation &os; package manager, also referred to as "pkgng".</para>
702
703  </sect2>
704
705  <sect2 xml:id="releng">
706    <title>Release Engineering and Integration</title>
707
708    <para role="merged">The supported version of
709      the <application>GNOME</application> desktop environment
710      (<package>x11/gnome2</package>) has been
711      updated from 2.20.1 to 2.22.</para>
712
713  </sect2>
714
715  <sect2 xml:id="doc">
716    <title>Documentation</title>
717
718    <para/>
719
720  </sect2>
721</sect1>
722
723<sect1 xml:id="upgrade">
724  <title>Upgrading from previous releases of &os;</title>
725
726  <para arch="amd64,i386">Beginning with &os; 6.2-RELEASE,
727    binary upgrades between RELEASE versions (and snapshots of the
728    various security branches) are supported using the
729    &man.freebsd-update.8; utility.  The binary upgrade procedure will
730    update unmodified userland utilities, as well as unmodified GENERIC or
731    SMP kernels distributed as a part of an official &os; release.
732    The &man.freebsd-update.8; utility requires that the host being
733    upgraded have Internet connectivity.</para>
734
735  <para>Source-based upgrades (those based on recompiling the &os;
736    base system from source code) from previous versions are
737    supported, according to the instructions in
738    <filename>/usr/src/UPDATING</filename>.</para>
739
740  <important>
741    <para>Upgrading &os; should, of course, only be attempted after
742      backing up <emphasis>all</emphasis> data and configuration
743      files.</para>
744  </important>
745</sect1>
746</article>
747