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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: releng/10.0/release/doc/en_US.ISO8859-1/relnotes/article.xml 259797 2013-12-23 22:31:40Z gjb $</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>The latest, up-to-date version of the release notes are
63    available online at <uri
64      xlink:href="&release.url;10.0R/relnotes.html">&release.url;10.0R/relnotes.html</uri>.</para>
65
66  <para releasetype="current">The &release.type; distribution to which these release notes
67    apply represents the latest point along the &release.branch; development
68    branch since &release.branch; was created.  Information regarding pre-built, binary
69    &release.type; distributions along this branch
70    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
71
72  <para releasetype="snapshot">The &release.type; distribution to which these release notes
73    apply represents a point along the &release.branch; development
74    branch between &release.prev; and the future &release.next;.
75    Information regarding
76    pre-built, binary &release.type; distributions along this branch
77    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
78
79  <para releasetype="release">This distribution of &os; &release.current; is a
80    &release.type; distribution.  It can be found at <uri xlink:href="&release.url;">&release.url;</uri> or any of its mirrors.  More
81    information on obtaining this (or other) &release.type;
82    distributions of &os; can be found in the <link xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
83    &os;</quote> appendix</link> to the <link xlink:href="&url.books.handbook;/">&os;
84    Handbook</link>.</para>
85
86  <para>All users are encouraged to consult the release errata before
87    installing &os;.  The errata document is updated with
88    <quote>late-breaking</quote> information discovered late in the
89    release cycle or after the release.  Typically, it contains
90    information on known bugs, security advisories, and corrections to
91    documentation.  An up-to-date copy of the errata for &os;
92    &release.current; can be found on the &os; Web site.</para>
93
94</sect1>
95
96<sect1 xml:id="new">
97  <title>What's New</title>
98
99  <para>This section describes
100    the most user-visible new or changed features in &os;
101    since &release.prev;.
102    In general, changes described here are unique to the &release.branch;
103    branch unless specifically marked as &merged; features.
104  </para>
105
106  <para>Typical release note items
107    document recent security advisories issued after
108    &release.prev;,
109    new drivers or hardware support, new commands or options,
110    major bug fixes, or contributed software upgrades.  They may also
111    list changes to major ports/packages or release engineering
112    practices.  Clearly the release notes cannot list every single
113    change made to &os; between releases; this document focuses
114    primarily on security advisories, user-visible changes, and major
115    architectural improvements.</para>
116
117  <sect2 xml:id="security">
118    <title>Security Advisories</title>
119
120    <para/>
121
122  </sect2>
123
124  <sect2 xml:id="kernel">
125    <title>Kernel Changes</title>
126
127    <para revision="248508">The use of unmapped VMIO buffers eliminates the need to perform
128      TLB shootdown for mapping on buffer creation and reuse, greatly reducing the
129      amount of IPIs for shootdown on big-SMP machines and eliminating up to 25-30%
130      of the system time on i/o intensive workloads.</para>
131
132    <para arch="amd64" revision="254466">The maximum amount of memory the &os; kernel
133      can address has been increased from 1TB to 4TB.</para>
134
135    <para>A new &man.cpuset.2; API has been added
136      for thread to CPU binding and CPU resource grouping and
137      assignment.  The &man.cpuset.1; userland utility has been added
138      to allow manipulation of processor sets.</para>
139
140    <para role="merged">The &man.ddb.4; kernel debugger now has an output capture
141      facility.  Input and output from &man.ddb.4; can now be captured
142      to a memory buffer for later inspection using &man.sysctl.8; or
143      a textdump.  The new <command>capture</command> command controls
144      this feature.</para>
145
146    <para role="merged">The &man.ddb.4; debugger now supports a simple scripting
147      facility, which supports a set of named scripts consisting of a
148      set of &man.ddb.4; commands.  These commands can be managed from
149      within &man.ddb.4; or with the use of the new &man.ddb.8;
150      utility.  More details can be found in the &man.ddb.4; manual
151      page.</para>
152
153    <para role="merged">The kernel now supports a new textdump format of kernel
154      dumps.  A textdump provides higher-level information via
155      mechanically generated/extracted debugging output, rather than a
156      simple memory dump.  This facility can be used to generate brief
157      kernel bug reports that are rich in debugging information, but
158      are not dependent on kernel symbol tables or precisely
159      synchronized source code.  More information can be found in the
160      &man.textdump.4; manual page.</para>
161
162    <para>Kernel support for M:N threading has been removed.  While
163      the KSE (Kernel Scheduled Entities) project was quite successful
164      in bringing threading to FreeBSD, the M:N approach taken by the
165      KSE library was never developed to its full potential.
166      Backwards compatibility for applications using KSE threading
167      will be provided via &man.libmap.conf.5; for dynamically linked
168      binaries.  The &os; Project greatly appreciates the work of
169      &a.julian;, &a.deischen;, and &a.davidxu; on KSE support.</para>
170
171    <para>The &os; kernel now exports information about certain kernel
172      features via the <varname>kern.features</varname> sysctl tree.
173      The &man.feature.present.3; library call provides a convenient
174      interface for user applications to test the presence of
175      features.</para>
176
177    <para arch="amd64">The &os; kernel now has support for large
178      memory page mappings (<quote>superpages</quote>).</para>
179
180    <para arch="amd64,i386,ia64,powerpc" role="merged">The ULE
181      scheduler is now the default process scheduler
182      in <filename>GENERIC</filename> kernels.</para>
183
184    <para arch="amd64,i386" revision="240135">Support was added for
185      the new Intel on-CPU Bull Mountain random number
186      generator, found on IvyBridge and supposedly later CPUs,
187      accessible with RDRAND instruction.</para>
188
189    <sect3 xml:id="kernel-virtualization">
190      <title>Virtualization support</title>
191      <para arch="amd64" revision="245652">The BSD Hypervisor, &man.bhyve.8; is included
192        with &os;.  &man.bhyve.8; requires Intel CPUs with VT-x and Extended Page Table (EPT)
193        support. These features are on all Nehalem models and beyond
194        (e.g. Nehalem and newer), but not on the lower-end Atom CPUs.</para> 
195  
196      <para revision="227652">&man.virtio.4; support has been added.  &man.virtio.4; is the
197        name for the paravirtualization interface developed for the Linux KVM, but
198        since adopted to other virtual machine hypervisors (with the notable exception of Xen).
199        This work brings in a BSD-licensed clean-room implementation of the virtio kernel drivers
200        for disk IO (&man.virtio_blk.4; and &man.virtio_scsi.4;), network IO (&man.vtnet.4;),
201        memory ballooning (&man.virtio_balloon.4;), and PCI.
202        Tested with on Qemu/KVM, VirtualBox, and &man.bhyve.4;.</para>
203  
204      <para arch="amd64,i386" revision="255524">Paravirtualized drivers which
205        support Microsoft Hyper-V have been imported and made
206        part of the amd64 GENERIC kernel.  For i386, these drivers are not part of
207        GENERIC, so the following lines must be added to
208        <filename>/boot/loader.conf</filename> to load these drivers:
209        <programlisting>hv_ata_pci_disengage_load="YES"
210hv_netsvc_load="YES"
211hv_utils_load="YES"
212hv_vmbus_load="YES"</programlisting>  Alternatively, the Hyper-V drivers can be added to the i386
213        kernel by adding <literal>device hyperv</literal> to the kernel config, and then
214        recompiling the kernel.</para>
215
216      <para revision="254738">The &man.vmx.4; driver has been added.
217        &man.vmx.4; is a VMware VMXNET3 ethernet driver ported from
218        OpenBSD.</para>
219
220      <para revision="255744" arch="amd64,i386">Xen PVHVM virtualization is now
221        part of the GENERIC kernel.</para>
222
223    </sect3>
224
225    <sect3 xml:id="kernel-arm">
226      <title>ARM support</title>
227
228      <para revision="239922">Raspberry PI support has been added.
229        Refer to these <link xlink:href="http://kernelnomicon.org/?p=164">setup instructions</link>
230        and <link xlink:href="http://www.raspberrypi.org/quick-start-guide">quick start
231        guide</link>.</para>
232  
233      <para revision="253396">The default ABI on ARM is now the ARM EABI. This brings a number of
234        improvements and allows future support for VFP and Thumb-2.</para> 
235  
236      <para revision="239268">ARM support has been greatly improved, including support
237        for ARMv6 and ARMv7, SMP and thread-local storage (TLS).
238        Additionally support for some newer SoC like the MV78x60 and OMAP4 was added.
239        See <link xlink:href="http://lists.freebsd.org/pipermail/freebsd-arm/2012-August/003757.html">this announcement</link>
240        for further details.</para>
241  
242      <para revision="254918">Superpages support on ARM has been added.  Superpages support
243        provides improved performance and scalability by allowing TLB
244        translations to dynamically cover large physical memory regions.
245        All ARMv6 and ARMv7-based platforms can take advantage of this feature.
246        See <link xlink:href="https://wiki.freebsd.org/ARMSuperpages">this page</link>
247        for further details.</para>
248
249    </sect3>
250
251    <sect3 xml:id="boot">
252      <title>Boot Loader Changes</title>
253
254      <para arch="amd64,i386" role="merged">The BTX kernel used by the boot
255	loader has been changed to invoke BIOS routines from real
256	mode.  This change makes it possible to boot &os; from USB
257	devices.</para>
258
259      <para arch="amd64,i386" role="merged">A new gptboot boot loader has
260        been added to support booting from a GPT labeled disk.  A
261        new <command>boot</command> command has been added to
262        &man.gpt.8;, which makes a GPT disk bootable by writing the
263        required bits of the boot loader, creating a new boot
264        partition if required.</para>
265
266    </sect3>
267
268    <sect3 xml:id="proc">
269      <title>Hardware Support</title>
270
271      <para role="merged">The &man.cmx.4; driver, a driver for Omnikey CardMan 4040
272        PCMCIA smartcard readers, has been added.</para>
273
274      <para>The &man.syscons.4; driver now supports Colemak keyboard layout.</para>
275
276      <para role="merged">The &man.uslcom.4; driver, a driver for Silicon
277        Laboratories CP2101/CP2102-based USB serial adapters, has been
278        imported from OpenBSD.</para>
279
280      <sect4 xml:id="mm">
281	<title>Multimedia Support</title>
282
283        <para revision="240609">Support for version 2.0 of the USB Audio reference design
284          has been added. New devices should support higher bandwidth,
285          increased sampling frequency and wider dynamic range.</para>
286
287      </sect4>
288
289      <sect4 xml:id="net-if">
290	<title>Network Interface Support</title>
291
292	<para>The &man.ale.4; driver has been added to provide support
293	  for Atheros AR8121/AR8113/AR8114 Gigabit/Fast Ethernet controllers.</para>
294
295	<para>The &man.em.4; driver has been split into two drivers
296	  with some common parts.  The &man.em.4; driver will continue
297	  to support adapters up to the 82575, as well as new
298	  client/desktop adapters.  A new &man.igb.4; driver
299	  will support new server adapters.</para>
300
301	<para>The &man.jme.4; driver has been added to provide support
302	  for PCIe network adapters based on JMicron JMC250 Gigabit
303	  Ethernet and JMC260 Fast Ethernet controllers.</para>
304
305	<para>The &man.malo.4; driver has been added to provide
306	  support for Marvell Libertas 88W8335 based PCI network
307	  adapters.</para>
308
309	<para>The firmware for the &man.mxge.4; driver has been
310	  updated from 1.4.25 to 1.4.29.</para>
311
312	<para>The &man.sf.4; driver has been overhauled to improve its
313	  performance and to add support for checksum offloading.  It
314	  should also work on all architectures.</para>
315
316	<para>The &man.re.4; driver has been overhauled to fix a
317	  number of issues.  This driver now has Wake On LAN (WOL)
318	  support.</para>
319
320	<para>The &man.vr.4; driver has been overhauled to fix a
321	  number of outstanding issues.  It also now works on all
322	  architectures.</para>
323
324	<para arch="amd64,i386" role="merged">The &man.wpi.4; driver has
325	  been updated to include a number of stability fixes.</para>
326
327	<para revision="248925">The &man.cxgbe.4; driver has been updated to support
328	  40G/10G Ethernet NICs based on Chelsio's Terminator 5 (T5) ASIC.</para>
329
330	<para revision="256694">The iw_cxgbe driver has been added.  This is an
331	  experimental iWARP/RDMA driver
332	  (kernel verbs only) for Chelsio's T4 and T5 based cards.</para>
333
334	<para revision="255932">The Open Fabrics Enterprise Distribution (OFED) and
335	  OFED Infiniband core has been
336	  updated to the same version as supplied by Linux version 3.7</para>
337
338	<para revision="255932">The Mellanox Infiniband driver has been updated to firmware
339	  version 2.30.3200 for ConnectX3 NICs.  Support has been added for ConnectX3 VPI NICs, where
340	  each port can be used as Infiniband 56 GB/s or Ethernet 40 GB/s.  Support has been added
341	  for dynamically loading kernel modules for Infiniband core (ibcore) and
342	  IP over Infiniband (ipoib).</para>
343
344	<para revision="227614">&man.netmap.4; has been added.  &man.netmap.4; is a framework for
345          high-performance direct-to-hardware packet IO, offering low latency and high PPS
346          rates to userland applications while bypassing any kernel-side packet processing.
347          With &man.netmap.4; it is trivially possible to fully saturate a 10 Gbps network interface with
348          minimal packet sizes.  For more information, see:
349          <link xlink:href="http://info.iet.unipi.it/~luigi/netmap/">Netmap Project</link>.</para> 
350
351      </sect4>
352    </sect3>
353
354    <sect3 xml:id="net-proto">
355      <title>Network Protocols</title>
356
357      <para revision="228571">&man.carp.4; has been rewritten to make addresses
358        more sane from the viewpoint of routing daemons such as
359        quagga/zebra. It also brings support for a single redundant
360        address on the subnet (carpdev), switching state with
361        &man.ifconfig.8;, better locking and using modern kernel
362        interfaces to allocate multicast memberships.
363        Configuration of the CARP protocol via &man.ifconfig.8; has changed, as well as format
364	of CARP events submitted to &man.devd.8; has changed. See &man.carp.4;
365	for more information. The arpbalance feature of &man.carp.4; is currently
366	not supported anymore.</para>
367
368      <para revision="240233">The &man.pf.4; firewall now supports fine-grain locking
369        and better utilization on multi-cpu machines resulting in
370        significant improvements in performance.</para>
371
372      <para revision="250700">Support for up to 65536 routing tables has been
373        introduced.</para>
374
375      <para revision="248552">Support for setting/matching differentiated services
376        codepoints (DSCP) in IP header has been added to
377        &man.ipfw.8;.</para>
378
379    </sect3>
380
381    <sect3 xml:id="disks">
382      <title>Disks and Storage</title>
383
384      <para role="merged">The &man.aac.4; driver now supports volumes larger than
385        2TB in size.</para>
386
387      <para>The &man.ata.4; driver now supports a spindown command for
388        disks; after a configurable amount of time, if no requests
389        have been received for a disk, the disk will be spun down
390        until the next request.  The &man.atacontrol.8; utility now
391        supports a <command>spindown</command> command to configure
392        this feature.</para>
393
394      <para role="merged">The &man.hptrr.4; driver has been updated to version 1.2
395        from Highpoint.</para>
396
397      <para revision="240616">&man.nvme.4; has been added and provides NVM Express support.
398        NVM Express is an optimized register interface, command set and feature set of
399        PCI Express (PCIe)-based Solid-State Drives (SSDs).  For more information,
400        see <link xlink:href="http://http://www.nvmexpress.org/">nvmexpress.org</link>.</para>
401
402    </sect3>
403
404    <sect3 xml:id="fs">
405      <title>File Systems</title>
406
407      <para revision="255570">A new kernel-based iSCSI target and initiator has been
408        added</para>
409
410      <para revision="243246">UFS filesystems can now be enlarged with &man.growfs.8; while
411        mounted read-write. This is especially useful for virtual
412        machines, allowing the addition of more harddrive space without
413        interruption of service.</para>
414
415      <para revision="241519">A state of the art FUSE implementation is now part of the
416        base system. It allows the use of nearly all fusefs file
417        systems</para>
418
419      <sect4 xml:id="fs-zfs">
420	<title>ZFS</title>
421
422        <para revision="">&man.bsdinstall.8; now supports installing
423          ZFS on the root file system.  It includes a single configuration menu
424          that allows you to select all of the required details, including
425          which drives to use, what ZFS RAID level to use (taking into consideration
426          the selected number of drives), GPT or MBR, GELI encryption, forcing 4K sectors,
427          pool name, etc.</para>
428
429        <para revision="240868">TRIM support has been added for
430          ZFS.</para>
431
432        <para revision="246586">Support for the high performance LZ4 compression algorithm
433          has been added to ZFS. LZ4 is usually faster and can achieve a
434          higher compression ratio than LZJB, the default compression
435          algorithm</para>
436
437        <para revision="252140">Support for L2ARC compression has been added to ZFS.</para>
438
439        <para revision="243524">The zio nop-write improvement from Illumos
440          was imported into &os;. To reduce I/O, nop-write skips overwriting
441          data if the checksum (cryptographically secure) of new data
442          matches the checksum of existing data. It also saves space if
443          snapshots are in use.  This improvement only works only on
444          datasets with enabled compression, disabled deduplication and
445          sha256 checksums.</para>
446
447        <para>ZFS will now compare the checksums of incoming writes to
448          the checksum of the existing on-disk data and avoid issuing any
449          write I/O for data that has not changed. This will reduce I/O
450          as well as space usage because if the old block is referenced
451          by a snapshot, both copies of the block are kept even though
452          both contain the same data.</para>
453
454      </sect4>
455
456    </sect3>
457
458  </sect2>
459
460  <sect2 xml:id="userland">
461    <title>Userland Changes</title>
462
463   <para revision="255321">On platforms where &man.clang.1; is the default
464      system compiler, (such as i386, amd64, arm) GCC and GNU libstdc++ are no
465      longer built by default.  &man.clang.1; and libc++ from LLVM are used on
466      these platforms by instead.  GCC 4.2.1 and libstdc++ are still built
467      and used by default on pc98 and all other platforms where &man.clang.1;
468      is not the default system compiler.
469   </para>
470
471   <para revision="251662">&man.clang.1; and llvm have been updated to
472     version 3.3 release.  Please refer to
473     <link xlink:href="http://llvm.org/releases/3.3/tools/clang/docs/ReleaseNotes.html">
474     Clang 3.3 Release Notes.</link></para>
475
476    <para role="merged" revision="255949">BIND has been replaced by &man.unbound.8; for
477      local dns resolution in the base system.  With this change, nslookup
478      and dig are no longer a part of the base system.  Users should
479      instead use &man.host.1; and &man.drill.1; Alternatively,
480      nslookup and dig can be obtained by installing the
481      dns/bind-tools port.</para>
482
483    <para revision="225937">sysinstall has been removed from the base system.
484      Auxiliary libraries and tools used by sysinstall such as libdisk, libftpio,
485      and sade have also been removed.  sysinstall has been replaced by
486      &man.bsdinstall.8; and &man.bsdconfig.8;.</para>
487
488    <para revision="256106">&man.freebsd-version.1; has been added.  This tool
489      makes a best effort to determine the version and patch level of
490      the installed kernel and userland.</para>
491
492    <para revision="255191">GNU patch has been removed from the base system, and replaced
493      by a BSD-licensed &man.patch.1; program.</para>
494
495    <para revision="241511">GNU sort has been removed from the base system, and replaced
496      by a BSD-licensed &man.sort.1; program.</para>
497
498    <para revision="235723">Berkely yacc (byacc) has been imported
499      from <link xlink:href="http://invisible-island.net/byacc/">invisible island</link>.
500      This brings bison compatibilities to &man.yacc.1; while preserving full
501      backwards compatibility with previous version of &man.yacc.1;.</para>
502
503    <para revision="250881">&man.lex.1; has been replaced by flex 2.5.37</para>
504
505    <para revision="250699">&man.make.1; has been replaced with the 
506      "Portable" BSD make tool (bmake) from NetBSD.</para>
507
508    <para role="merged">The &man.adduser.8; utility now supports
509      a <option>-M</option> option to set the mode of a new user's
510      home directory.</para>
511
512    <para>BSD-licensed versions of &man.ar.1; and &man.ranlib.1;,
513      based on <filename>libarchive</filename>, have replaced the GNU
514      Binutils versions of these utilities.</para>
515
516    <para>BSD-licensed versions of &man.bc.1; and &man.dc.1; have
517      replaced their GNU counterparts.</para>
518
519    <para role="merged">&man.chflags.1; now supports a <option>-v</option> flag for
520      verbose output and a <option>-f</option> flag to ignore errors
521      with the same semantics as (for example)
522      &man.chmod.1;.</para>
523
524    <para>For compatibility with other implementations, &man.cp.1; now
525      supports a <option>-a</option> flag, which is equivalent to
526      specifying the <option>-RrP</option> flags.</para>
527
528    <para>BSD-licensed version of &man.cpio.1; based on
529      <filename>libarchive</filename>, has replaced the GNU cpio.
530      Note that the GNU cpio is still installed as
531      <filename>gcpio</filename>.</para>
532
533    <para>The &man.env.1; program now supports <option>-u
534      <replaceable>name</replaceable></option>
535      which will completely unset the given variable
536      <replaceable>name</replaceable> by removing it from the environment,
537      instead of just setting it to a null value.</para>
538
539    <para>The &man.fdopendir.3; library function has been added.</para>
540
541    <para role="merged">The &man.fetch.3; library now support HTTP 1.1
542      If-Modified-Since behavior.  The &man.fetch.1; program now
543      supports <option>-i <replaceable>filename</replaceable></option>
544      which will only download the specified HTTP URL if the content
545      is newer than <replaceable>filename</replaceable>.</para>
546
547    <para>&man.find.1; has been enhanced by the addition of a number
548      of primaries that were present in GNU find but not &os;
549      &man.find.1;.</para>
550
551    <para>&man.kgdb.1; now supports a new <command>add-kld</command>
552      command to make it easier to debug crash dumps with kernel
553      modules.</para>
554
555    <para>The &man.ls.1; program now supports a <option>-D</option>
556      option to specify a date format string to be used with the long
557      format (<option>-l</option>) output.</para>
558
559    <para>&man.nc.1; now supports a <option>-O</option> switch to
560      disable the use of TCP options.</para>
561
562    <para>&man.nc.1;'s <option>-o</option> switch has been deprecated.
563      It will be removed in a future release.</para>
564
565    <para>The &man.ping6.8; utility now returns <literal>2</literal>
566      when the packet transmission was successful but no responses
567      were received (this is the same behavior as &man.ping.8;).
568      It returned a non-zero value before this change.</para>
569
570    <para>The &man.procstat.1; utility has been added to display
571      detailed information about processes.</para>
572
573    <para role="merged">The &man.realpath.1; utility now supports
574      a <option>-q</option> flag to suppress warnings; it now also
575      accepts multiple paths on its command line.</para>
576
577    <para>&man.sh.1; has many bug fixes, some new features, and will now
578      refuse to parse some invalid scripts.  Additionally, it now
579      has filename completion and defaults to the &quot;emacs&quot; editing
580      mode.</para>
581
582    <para>The &man.split.1; utility now supports a <option>-n</option>
583      flag to split a file into a certain number of chunks.</para>
584
585    <para>The &man.tar.1; utility now supports a <option>-Z</option>
586      flag to enable &man.compress.1;-style
587      compression/decompression.</para>
588
589    <para>The &man.tar.1; utility now supports a
590      <option>--numeric-owner</option> flag to ignore user/group names
591      on create and extract.</para>
592
593    <para>The &man.tar.1; utility now supports an
594      <option>-S</option> flag to sparsify files on extraction.</para>
595
596    <para>The &man.tar.1; utility now supports a <option>-s</option>
597      flag to substitute filenames based on the specified regular
598      expression.</para>
599
600    <para>The &man.tcgetsid.3; library function has been added to
601      return the process group ID for the session leader for the
602      controlling terminal.  It is defined in IEEE Std 1003.1-2001
603      (POSIX).</para>
604
605    <para>&man.top.1; now supports a <option>-P</option> flag to
606      provide per-CPU usage statistics.</para>
607
608    <para>&man.zdump.8; is now working properly on 64 bit architectures.
609      </para>
610
611    <para>&man.traceroute.8; now has the ability to print the AS
612      number for each hop with the new <option>-a</option> switch; a
613      new <option>-A</option> option allows selecting a particular
614      WHOIS server.</para>
615
616    <para>&man.traceroute6.8; now supports a <option>-U</option> flag
617      to send probe packets with no upper-layer protocol, rather than
618      the usual UDP probe packets.</para>
619
620    <sect3 xml:id="rc-scripts">
621      <title><filename>/etc/rc.d</filename> Scripts</title>
622
623      <para/>
624
625    </sect3>
626  </sect2>
627
628  <sect2 xml:id="contrib">
629    <title>Contributed Software</title>
630
631    <para revision="251300">&man.jemalloc.3; has been updated to 3.4.0.
632      See <link xlink:href="http://www.facebook.com/jemalloc/">this link</link>.
633      for more details.</para>
634
635    <para role="merged"><application>AMD</application> has been updated from 6.0.10
636      to 6.1.5.</para>
637
638    <para role="merged"><application>awk</application> has been updated from 1 May
639      2007 release to the 23 October 2007 release.</para>
640
641    <para role="merged"><application>bzip2</application> has been updated from 1.0.4
642      to 1.0.5.</para>
643
644    <para revision="251794"><application>CVS</application> has been removed from the
645    base system, but is still available from ports</para>
646
647    <para revision="251886">Subversion has been imported into the base system and
648      is installed as <application>svnlite</application>.  <application>svnlite</application>
649      should only be used for checking out &os; source and committing, and does not
650      replace the full Subversion port.</para>
651
652    <para revision="234449"><application>file</application> has been updated to 5.11.</para>
653
654    <para revision="252726"><application>hostapd</application> has been
655      updated from 0.5.8 to 0.5.10.</para>
656
657    <para><application>IPFilter</application> has been updated to 5.1.2.</para>
658
659    <para revision="250592"><application>less</application> has been updated to
660      v458.</para>
661
662    <para><application>ncurses</application> has been updated from
663      to 5.7-20081102.</para>
664
665    <para role="merged"><application>OpenSSH</application> has been updated
666      to 6.4.</para>
667
668    <para revision="236109"><application>OpenPAM</application> has been updated to
669      the Micrampelis release.</para>
670
671    <para role="merged"><application>sendmail</application> has been updated from
672      8.14.1 to 8.14.7.</para>
673
674    <para role="merged">The timezone database has been updated from
675      the <application>tzdata2008h</application> release to
676      the <application>tzdata2009m</application> release.</para>
677
678    <para>The stdtime part of libc, &man.zdump.8; and &man.zic.8;
679      have been updated from the <application>tzcode2004a</application>
680      release to the <application>tzcode2009h</application> release.
681      If you have upgraded from source or via the &man.freebsd-update.8;,
682      then please run &man.tzsetup.8; to install a new /etc/localtime.
683      </para>
684
685    <para revision="252726"><application>WPA Supplicant</application> has been
686      updated to 2.0.</para>
687
688    <para role="merged"><application>xz</application> has been updated
689      from snapshot as of 12 April 2010 to 5.0.0.</para>
690
691    <para revision="258231" role="merged">&man.nvi.1; has been updated to 2.1.2.</para>
692
693    <para revision="254225">&man.nvi.1; supports wide character locales.</para>
694
695  </sect2>
696
697  <sect2 xml:id="ports">
698    <title>Ports/Packages Collection Infrastructure</title>
699
700    <para revision="257444">The pkg_add, pkg_create, pkg_delete, pkg_info,
701      pkg_updating, and pkg_version utilities have been removed.
702      &man.pkg.7; must now be used to install binary packages.  &man.pkg.7;
703      is the next generation &os; package manager, also referred to as "pkgng".</para>
704
705  </sect2>
706
707  <sect2 xml:id="releng">
708    <title>Release Engineering and Integration</title>
709
710    <para role="merged">The supported version of
711      the <application>GNOME</application> desktop environment
712      (<package>x11/gnome2</package>) has been
713      updated from 2.20.1 to 2.22.</para>
714
715  </sect2>
716
717  <sect2 xml:id="doc">
718    <title>Documentation</title>
719
720    <para/>
721
722  </sect2>
723</sect1>
724
725<sect1 xml:id="upgrade">
726  <title>Upgrading from previous releases of &os;</title>
727
728  <para arch="amd64,i386">Beginning with &os; 6.2-RELEASE,
729    binary upgrades between RELEASE versions (and snapshots of the
730    various security branches) are supported using the
731    &man.freebsd-update.8; utility.  The binary upgrade procedure will
732    update unmodified userland utilities, as well as unmodified GENERIC or
733    SMP kernels distributed as a part of an official &os; release.
734    The &man.freebsd-update.8; utility requires that the host being
735    upgraded have Internet connectivity.</para>
736
737  <para>Source-based upgrades (those based on recompiling the &os;
738    base system from source code) from previous versions are
739    supported, according to the instructions in
740    <filename>/usr/src/UPDATING</filename>.</para>
741
742  <important>
743    <para>Upgrading &os; should, of course, only be attempted after
744      backing up <emphasis>all</emphasis> data and configuration
745      files.</para>
746  </important>
747</sect1>
748</article>
749