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4<!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
5 %release;
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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 264379 2014-04-12 20:32:46Z 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    <year>2014</year>
31    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
32  </copyright>
33
34  <legalnotice xml:id="trademarks" role="trademarks">
35    &tm-attrib.freebsd;
36    &tm-attrib.ibm;
37    &tm-attrib.ieee;
38    &tm-attrib.intel;
39    &tm-attrib.sparc;
40    &tm-attrib.general;
41  </legalnotice>
42
43  <abstract>
44    <para>The release notes for &os; &release.current; contain a summary
45      of the changes made to the &os; base system on the
46      &release.branch; development line.
47      This document lists applicable security advisories that were issued since
48      the last release, as well as significant changes to the &os;
49      kernel and userland.
50      Some brief remarks on upgrading are also presented.</para>
51  </abstract>
52</info>
53
54<sect1 xml:id="intro">
55  <title>Introduction</title>
56
57  <para>This document contains the release notes for &os;
58    &release.current;.  It
59    describes recently added, changed, or deleted features of &os;.
60    It also provides some notes on upgrading
61    from previous versions of &os;.</para>
62
63  <para releasetype="current">The &release.type; distribution to which these release notes
64    apply represents the latest point along the &release.branch; development
65    branch since &release.branch; was created.  Information regarding pre-built, binary
66    &release.type; distributions along this branch
67    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
68
69  <para releasetype="snapshot">The &release.type; distribution to which these release notes
70    apply represents a point along the &release.branch; development
71    branch between &release.prev; and the future &release.next;.
72    Information regarding
73    pre-built, binary &release.type; distributions along this branch
74    can be found at <uri xlink:href="&release.url;">&release.url;</uri>.</para>
75
76  <para releasetype="release">This distribution of &os; &release.current; is a
77    &release.type; distribution.  It can be found at <uri xlink:href="&release.url;">&release.url;</uri> or any of its mirrors.  More
78    information on obtaining this (or other) &release.type;
79    distributions of &os; can be found in the <link xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
80    &os;</quote> appendix</link> to the <link xlink:href="&url.books.handbook;/">&os;
81    Handbook</link>.</para>
82
83  <para>All users are encouraged to consult the release errata before
84    installing &os;.  The errata document is updated with
85    <quote>late-breaking</quote> information discovered late in the
86    release cycle or after the release.  Typically, it contains
87    information on known bugs, security advisories, and corrections to
88    documentation.  An up-to-date copy of the errata for &os;
89    &release.current; can be found on the &os; Web site.</para>
90
91</sect1>
92
93<sect1 xml:id="new">
94  <title>What's New</title>
95
96  <para>This section describes
97    the most user-visible new or changed features in &os;
98    since &release.prev;.</para>
99
100  <para>Typical release note items
101    document recent security advisories issued after
102    &release.prev;,
103    new drivers or hardware support, new commands or options,
104    major bug fixes, or contributed software upgrades.  They may also
105    list changes to major ports/packages or release engineering
106    practices.  Clearly the release notes cannot list every single
107    change made to &os; between releases; this document focuses
108    primarily on security advisories, user-visible changes, and major
109    architectural improvements.</para>
110
111  <sect2 xml:id="security">
112    <title>Security Advisories</title>
113
114    <para/>
115
116  </sect2>
117
118  <sect2 xml:id="kernel">
119    <title>Kernel Changes</title>
120
121    <para revision="248508">The use of unmapped VMIO buffers eliminates the need to perform
122      TLB shootdown for mapping on buffer creation and reuse, greatly reducing the
123      amount of IPIs for shootdown on big-SMP machines and eliminating up to 25-30%
124      of the system time on i/o intensive workloads.</para>
125
126    <para arch="amd64" revision="254466">The maximum amount of memory the &os; kernel
127      can address has been increased from 1TB to 4TB.</para>
128
129    <para>A new &man.cpuset.2; API has been added
130      for thread to CPU binding and CPU resource grouping and
131      assignment.  The &man.cpuset.1; userland utility has been added
132      to allow manipulation of processor sets.</para>
133
134    <para role="merged">The &man.ddb.4; kernel debugger now has an output capture
135      facility.  Input and output from &man.ddb.4; can now be captured
136      to a memory buffer for later inspection using &man.sysctl.8; or
137      a textdump.  The new <command>capture</command> command controls
138      this feature.</para>
139
140    <para role="merged">The &man.ddb.4; debugger now supports a simple scripting
141      facility, which supports a set of named scripts consisting of a
142      set of &man.ddb.4; commands.  These commands can be managed from
143      within &man.ddb.4; or with the use of the new &man.ddb.8;
144      utility.  More details can be found in the &man.ddb.4; manual
145      page.</para>
146
147    <para role="merged">The kernel now supports a new textdump format of kernel
148      dumps.  A textdump provides higher-level information via
149      mechanically generated/extracted debugging output, rather than a
150      simple memory dump.  This facility can be used to generate brief
151      kernel bug reports that are rich in debugging information, but
152      are not dependent on kernel symbol tables or precisely
153      synchronized source code.  More information can be found in the
154      &man.textdump.4; manual page.</para>
155
156    <para>Kernel support for M:N threading has been removed.  While
157      the KSE (Kernel Scheduled Entities) project was quite successful
158      in bringing threading to FreeBSD, the M:N approach taken by the
159      KSE library was never developed to its full potential.
160      Backwards compatibility for applications using KSE threading
161      will be provided via &man.libmap.conf.5; for dynamically linked
162      binaries.  The &os; Project greatly appreciates the work of
163      &a.julian;, &a.deischen;, and &a.davidxu; on KSE support.</para>
164
165    <para>The &os; kernel now exports information about certain kernel
166      features via the <varname>kern.features</varname> sysctl tree.
167      The &man.feature.present.3; library call provides a convenient
168      interface for user applications to test the presence of
169      features.</para>
170
171    <para arch="amd64">The &os; kernel now has support for large
172      memory page mappings (<quote>superpages</quote>).</para>
173
174    <para arch="amd64,i386,ia64,powerpc" role="merged">The ULE
175      scheduler is now the default process scheduler
176      in <filename>GENERIC</filename> kernels.</para>
177
178    <para arch="amd64,i386" revision="240135">Support was added for
179      the new Intel on-CPU Bull Mountain random number
180      generator, found on IvyBridge and supposedly later CPUs,
181      accessible with RDRAND instruction.</para>
182
183    <sect3 xml:id="kernel-virtualization">
184      <title>Virtualization support</title>
185      <para arch="amd64" revision="245652">The BSD Hypervisor, &man.bhyve.8; is included
186        with &os;.  &man.bhyve.8; requires Intel CPUs with VT-x and Extended Page Table (EPT)
187        support. These features are on all Nehalem models and beyond
188        (e.g. Nehalem and newer), but not on the lower-end Atom CPUs.</para> 
189  
190      <para revision="227652">&man.virtio.4; support has been added.  &man.virtio.4; is the
191        name for the paravirtualization interface developed for the Linux KVM, but
192        since adopted to other virtual machine hypervisors (with the notable exception of Xen).
193        This work brings in a BSD-licensed clean-room implementation of the virtio kernel drivers
194        for disk IO (&man.virtio_blk.4; and &man.virtio_scsi.4;), network IO (&man.vtnet.4;),
195        memory ballooning (&man.virtio_balloon.4;), and PCI.
196        Tested with on Qemu/KVM, VirtualBox, and &man.bhyve.4;.</para>
197  
198      <para arch="amd64,i386" revision="255524">Paravirtualized drivers which
199        support Microsoft Hyper-V have been imported and made
200        part of the amd64 GENERIC kernel.  For i386, these drivers are not part of
201        GENERIC, so the following lines must be added to
202        <filename>/boot/loader.conf</filename> to load these drivers:
203        <programlisting>hv_ata_pci_disengage_load="YES"
204hv_netsvc_load="YES"
205hv_utils_load="YES"
206hv_vmbus_load="YES"</programlisting>  Alternatively, the Hyper-V drivers can be added to the i386
207        kernel by adding <literal>device hyperv</literal> to the kernel config, and then
208        recompiling the kernel.  Please refer to:
209        <link xlink:href="http://wiki.freebsd.org/HyperV">FreeBSD and Microsoft Windows Server Hyper-V support</link>
210        for full instructions on how to set up Hyper-V support under FreeBSD.</para>
211
212      <para revision="254738">The &man.vmx.4; driver has been added.
213        &man.vmx.4; is a VMware VMXNET3 ethernet driver ported from
214        OpenBSD.</para>
215
216      <para revision="255744" arch="amd64,i386">Xen PVHVM virtualization is now
217        part of the GENERIC kernel.</para>
218
219    </sect3>
220
221    <sect3 xml:id="kernel-arm">
222      <title>ARM support</title>
223
224      <para revision="239922">Raspberry PI support has been added.
225        Refer to these <link xlink:href="http://kernelnomicon.org/?p=164">setup instructions</link>
226        and <link xlink:href="http://www.raspberrypi.org/quick-start-guide">quick start
227        guide</link>.</para>
228  
229      <para revision="253396">The default ABI on ARM is now the ARM EABI. This brings a number of
230        improvements and allows future support for VFP and Thumb-2.</para> 
231  
232      <para revision="239268">ARM support has been greatly improved, including support
233        for ARMv6 and ARMv7, SMP and thread-local storage (TLS).
234        Additionally support for some newer SoC like the MV78x60 and OMAP4 was added.
235        See <link xlink:href="http://lists.freebsd.org/pipermail/freebsd-arm/2012-August/003757.html">this announcement</link>
236        for further details.</para>
237  
238      <para revision="254918">Superpages support on ARM has been added.  Superpages support
239        provides improved performance and scalability by allowing TLB
240        translations to dynamically cover large physical memory regions.
241        All ARMv6 and ARMv7-based platforms can take advantage of this feature.
242        See <link xlink:href="https://wiki.freebsd.org/ARMSuperpages">this page</link>
243        for further details.</para>
244
245    </sect3>
246
247    <sect3 xml:id="boot">
248      <title>Boot Loader Changes</title>
249
250      <para arch="amd64,i386" role="merged">The BTX kernel used by the boot
251	loader has been changed to invoke BIOS routines from real
252	mode.  This change makes it possible to boot &os; from USB
253	devices.</para>
254
255      <para arch="amd64,i386" role="merged">A new gptboot boot loader has
256        been added to support booting from a GPT labeled disk.  A
257        new <command>boot</command> command has been added to
258        &man.gpt.8;, which makes a GPT disk bootable by writing the
259        required bits of the boot loader, creating a new boot
260        partition if required.</para>
261
262    </sect3>
263
264    <sect3 xml:id="proc">
265      <title>Hardware Support</title>
266
267      <para role="merged">The &man.cmx.4; driver, a driver for Omnikey CardMan 4040
268        PCMCIA smartcard readers, has been added.</para>
269
270      <para>The &man.syscons.4; driver now supports Colemak keyboard layout.</para>
271
272      <para role="merged">The &man.uslcom.4; driver, a driver for Silicon
273        Laboratories CP2101/CP2102-based USB serial adapters, has been
274        imported from OpenBSD.</para>
275
276      <sect4 xml:id="mm">
277	<title>Multimedia Support</title>
278
279        <para revision="240609">Support for version 2.0 of the USB Audio reference design
280          has been added. New devices should support higher bandwidth,
281          increased sampling frequency and wider dynamic range.</para>
282
283      </sect4>
284
285      <sect4 xml:id="net-if">
286	<title>Network Interface Support</title>
287
288	<para>The &man.ale.4; driver has been added to provide support
289	  for Atheros AR8121/AR8113/AR8114 Gigabit/Fast Ethernet controllers.</para>
290
291	<para>The &man.em.4; driver has been split into two drivers
292	  with some common parts.  The &man.em.4; driver will continue
293	  to support adapters up to the 82575, as well as new
294	  client/desktop adapters.  A new &man.igb.4; driver
295	  will support new server adapters.</para>
296
297	<para>The &man.jme.4; driver has been added to provide support
298	  for PCIe network adapters based on JMicron JMC250 Gigabit
299	  Ethernet and JMC260 Fast Ethernet controllers.</para>
300
301	<para>The &man.malo.4; driver has been added to provide
302	  support for Marvell Libertas 88W8335 based PCI network
303	  adapters.</para>
304
305	<para>The firmware for the &man.mxge.4; driver has been
306	  updated from 1.4.25 to 1.4.29.</para>
307
308	<para>The &man.sf.4; driver has been overhauled to improve its
309	  performance and to add support for checksum offloading.  It
310	  should also work on all architectures.</para>
311
312	<para>The &man.re.4; driver has been overhauled to fix a
313	  number of issues.  This driver now has Wake On LAN (WOL)
314	  support.</para>
315
316	<para>The &man.vr.4; driver has been overhauled to fix a
317	  number of outstanding issues.  It also now works on all
318	  architectures.</para>
319
320	<para arch="amd64,i386" role="merged">The &man.wpi.4; driver has
321	  been updated to include a number of stability fixes.</para>
322
323	<para revision="248925">The &man.cxgbe.4; driver has been updated to support
324	  40G/10G Ethernet NICs based on Chelsio's Terminator 5 (T5) ASIC.</para>
325
326	<para revision="256694">The iw_cxgbe driver has been added.  This is an
327	  experimental iWARP/RDMA driver
328	  (kernel verbs only) for Chelsio's T4 and T5 based cards.</para>
329
330	<para revision="255932">The Open Fabrics Enterprise Distribution (OFED) and
331	  OFED Infiniband core has been
332	  updated to the same version as supplied by Linux version 3.7</para>
333
334	<para revision="255932">The Mellanox Infiniband driver has been updated to firmware
335	  version 2.30.3200 for ConnectX3 NICs.  Support has been added for ConnectX3 VPI NICs, where
336	  each port can be used as Infiniband 56 GB/s or Ethernet 40 GB/s.  Support has been added
337	  for dynamically loading kernel modules for Infiniband core (ibcore) and
338	  IP over Infiniband (ipoib).</para>
339
340	<para revision="227614">&man.netmap.4; has been added.  &man.netmap.4; is a framework for
341          high-performance direct-to-hardware packet IO, offering low latency and high PPS
342          rates to userland applications while bypassing any kernel-side packet processing.
343          With &man.netmap.4; it is trivially possible to fully saturate a 10 Gbps network interface with
344          minimal packet sizes.  For more information, see:
345          <link xlink:href="http://info.iet.unipi.it/~luigi/netmap/">Netmap Project</link>.</para> 
346
347      </sect4>
348    </sect3>
349
350    <sect3 xml:id="net-proto">
351      <title>Network Protocols</title>
352
353      <para revision="228571">&man.carp.4; has been rewritten to make addresses
354        more sane from the viewpoint of routing daemons such as
355        quagga/zebra. It also brings support for a single redundant
356        address on the subnet (carpdev), switching state with
357        &man.ifconfig.8;, better locking and using modern kernel
358        interfaces to allocate multicast memberships.
359        Configuration of the CARP protocol via &man.ifconfig.8; has changed, as well as format
360	of CARP events submitted to &man.devd.8; has changed. See &man.carp.4;
361	for more information. The arpbalance feature of &man.carp.4; is currently
362	not supported anymore.</para>
363
364      <para revision="240233">The &man.pf.4; firewall now supports fine-grain locking
365        and better utilization on multi-cpu machines resulting in
366        significant improvements in performance.</para>
367
368      <para revision="250700">Support for up to 65536 routing tables has been
369        introduced.</para>
370
371      <para revision="248552">Support for setting/matching differentiated services
372        codepoints (DSCP) in IP header has been added to
373        &man.ipfw.8;.</para>
374
375    </sect3>
376
377    <sect3 xml:id="disks">
378      <title>Disks and Storage</title>
379
380      <para role="merged">The &man.aac.4; driver now supports volumes larger than
381        2TB in size.</para>
382
383      <para>The &man.ata.4; driver now supports a spindown command for
384        disks; after a configurable amount of time, if no requests
385        have been received for a disk, the disk will be spun down
386        until the next request.  The &man.atacontrol.8; utility now
387        supports a <command>spindown</command> command to configure
388        this feature.</para>
389
390      <para role="merged">The &man.hptrr.4; driver has been updated to version 1.2
391        from Highpoint.</para>
392
393      <para revision="240616">&man.nvme.4; has been added and provides NVM Express support.
394        NVM Express is an optimized register interface, command set and feature set of
395        PCI Express (PCIe)-based Solid-State Drives (SSDs).  For more information,
396        see <link xlink:href="http://http://www.nvmexpress.org/">nvmexpress.org</link>.</para>
397
398    </sect3>
399
400    <sect3 xml:id="fs">
401      <title>File Systems</title>
402
403      <para revision="255570">A new kernel-based iSCSI target and initiator has been
404        added</para>
405
406      <para revision="243246">UFS filesystems can now be enlarged with &man.growfs.8; while
407        mounted read-write. This is especially useful for virtual
408        machines, allowing the addition of more harddrive space without
409        interruption of service.</para>
410
411      <para revision="241519">A state of the art FUSE implementation is now part of the
412        base system. It allows the use of nearly all fusefs file
413        systems</para>
414
415      <sect4 xml:id="fs-zfs">
416	<title>ZFS</title>
417
418        <para revision="">&man.bsdinstall.8; now supports installing
419          ZFS on the root file system.  It includes a single configuration menu
420          that allows you to select all of the required details, including
421          which drives to use, what ZFS RAID level to use (taking into consideration
422          the selected number of drives), GPT or MBR, GELI encryption, forcing 4K sectors,
423          pool name, etc.</para>
424
425        <para revision="240868">TRIM support has been added for
426          ZFS.</para>
427
428        <para revision="246586">Support for the high performance LZ4 compression algorithm
429          has been added to ZFS. LZ4 is usually faster and can achieve a
430          higher compression ratio than LZJB, the default compression
431          algorithm</para>
432
433        <para revision="252140">Support for L2ARC compression has been added to ZFS.</para>
434
435        <para revision="243524">The zio nop-write improvement from Illumos
436          was imported into &os;. To reduce I/O, nop-write skips overwriting
437          data if the checksum (cryptographically secure) of new data
438          matches the checksum of existing data. It also saves space if
439          snapshots are in use.  This improvement only works only on
440          datasets with enabled compression, disabled deduplication and
441          sha256 checksums.</para>
442
443        <para>ZFS will now compare the checksums of incoming writes to
444          the checksum of the existing on-disk data and avoid issuing any
445          write I/O for data that has not changed. This will reduce I/O
446          as well as space usage because if the old block is referenced
447          by a snapshot, both copies of the block are kept even though
448          both contain the same data.</para>
449
450      </sect4>
451
452    </sect3>
453
454  </sect2>
455
456  <sect2 xml:id="userland">
457    <title>Userland Changes</title>
458
459    <para revision="264377"><application>OpenSSH</application> has
460      been updated to version 6.6p1.</para>
461
462   <para revision="255321">On platforms where &man.clang.1; is the default
463      system compiler, (such as i386, amd64, arm) GCC and GNU libstdc++ are no
464      longer built by default.  &man.clang.1; and libc++ from LLVM are used on
465      these platforms by instead.  GCC 4.2.1 and libstdc++ are still built
466      and used by default on pc98 and all other platforms where &man.clang.1;
467      is not the default system compiler.
468   </para>
469
470   <para revision="251662">&man.clang.1; and llvm have been updated to
471     version 3.3 release.  Please refer to
472     <link xlink:href="http://llvm.org/releases/3.3/tools/clang/docs/ReleaseNotes.html">
473     Clang 3.3 Release Notes.</link></para>
474
475    <para role="merged" revision="255949">BIND has been replaced by &man.unbound.8; for
476      local dns resolution in the base system.  With this change, nslookup
477      and dig are no longer a part of the base system.  Users should
478      instead use &man.host.1; and &man.drill.1; Alternatively,
479      nslookup and dig can be obtained by installing the
480      dns/bind-tools port.</para>
481
482    <para revision="225937">sysinstall has been removed from the base system.
483      Auxiliary libraries and tools used by sysinstall such as libdisk, libftpio,
484      and sade have also been removed.  sysinstall has been replaced by
485      &man.bsdinstall.8; and &man.bsdconfig.8;.</para>
486
487    <para revision="256106">&man.freebsd-version.1; has been added.  This tool
488      makes a best effort to determine the version and patch level of
489      the installed kernel and userland.</para>
490
491    <para revision="255191">GNU patch has been removed from the base system, and replaced
492      by a BSD-licensed &man.patch.1; program.</para>
493
494    <para revision="241511">GNU sort has been removed from the base system, and replaced
495      by a BSD-licensed &man.sort.1; program.</para>
496
497    <para revision="235723">Berkely yacc (byacc) has been imported
498      from <link xlink:href="http://invisible-island.net/byacc/">invisible island</link>.
499      This brings bison compatibilities to &man.yacc.1; while preserving full
500      backwards compatibility with previous version of &man.yacc.1;.</para>
501
502    <para revision="250881">&man.lex.1; has been replaced by flex 2.5.37</para>
503
504    <para revision="250699">&man.make.1; has been replaced with the 
505      "Portable" BSD make tool (bmake) from NetBSD.</para>
506
507    <para role="merged">The &man.adduser.8; utility now supports
508      a <option>-M</option> option to set the mode of a new user's
509      home directory.</para>
510
511    <para>BSD-licensed versions of &man.ar.1; and &man.ranlib.1;,
512      based on <filename>libarchive</filename>, have replaced the GNU
513      Binutils versions of these utilities.</para>
514
515    <para>BSD-licensed versions of &man.bc.1; and &man.dc.1; have
516      replaced their GNU counterparts.</para>
517
518    <para role="merged">&man.chflags.1; now supports a <option>-v</option> flag for
519      verbose output and a <option>-f</option> flag to ignore errors
520      with the same semantics as (for example)
521      &man.chmod.1;.</para>
522
523    <para>For compatibility with other implementations, &man.cp.1; now
524      supports a <option>-a</option> flag, which is equivalent to
525      specifying the <option>-RrP</option> flags.</para>
526
527    <para>BSD-licensed version of &man.cpio.1; based on
528      <filename>libarchive</filename>, has replaced the GNU cpio.
529      Note that the GNU cpio is still installed as
530      <filename>gcpio</filename>.</para>
531
532    <para>The &man.env.1; program now supports <option>-u
533      <replaceable>name</replaceable></option>
534      which will completely unset the given variable
535      <replaceable>name</replaceable> by removing it from the environment,
536      instead of just setting it to a null value.</para>
537
538    <para>The &man.fdopendir.3; library function has been added.</para>
539
540    <para role="merged">The &man.fetch.3; library now support HTTP 1.1
541      If-Modified-Since behavior.  The &man.fetch.1; program now
542      supports <option>-i <replaceable>filename</replaceable></option>
543      which will only download the specified HTTP URL if the content
544      is newer than <replaceable>filename</replaceable>.</para>
545
546    <para>&man.find.1; has been enhanced by the addition of a number
547      of primaries that were present in GNU find but not &os;
548      &man.find.1;.</para>
549
550    <para>&man.kgdb.1; now supports a new <command>add-kld</command>
551      command to make it easier to debug crash dumps with kernel
552      modules.</para>
553
554    <para>The &man.ls.1; program now supports a <option>-D</option>
555      option to specify a date format string to be used with the long
556      format (<option>-l</option>) output.</para>
557
558    <para>&man.nc.1; now supports a <option>-O</option> switch to
559      disable the use of TCP options.</para>
560
561    <para>&man.nc.1;'s <option>-o</option> switch has been deprecated.
562      It will be removed in a future release.</para>
563
564    <para>The &man.ping6.8; utility now returns <literal>2</literal>
565      when the packet transmission was successful but no responses
566      were received (this is the same behavior as &man.ping.8;).
567      It returned a non-zero value before this change.</para>
568
569    <para>The &man.procstat.1; utility has been added to display
570      detailed information about processes.</para>
571
572    <para role="merged">The &man.realpath.1; utility now supports
573      a <option>-q</option> flag to suppress warnings; it now also
574      accepts multiple paths on its command line.</para>
575
576    <para>&man.sh.1; has many bug fixes, some new features, and will now
577      refuse to parse some invalid scripts.  Additionally, it now
578      has filename completion and defaults to the &quot;emacs&quot; editing
579      mode.</para>
580
581    <para>The &man.split.1; utility now supports a <option>-n</option>
582      flag to split a file into a certain number of chunks.</para>
583
584    <para>The &man.tar.1; utility now supports a <option>-Z</option>
585      flag to enable &man.compress.1;-style
586      compression/decompression.</para>
587
588    <para>The &man.tar.1; utility now supports a
589      <option>--numeric-owner</option> flag to ignore user/group names
590      on create and extract.</para>
591
592    <para>The &man.tar.1; utility now supports an
593      <option>-S</option> flag to sparsify files on extraction.</para>
594
595    <para>The &man.tar.1; utility now supports a <option>-s</option>
596      flag to substitute filenames based on the specified regular
597      expression.</para>
598
599    <para>The &man.tcgetsid.3; library function has been added to
600      return the process group ID for the session leader for the
601      controlling terminal.  It is defined in IEEE Std 1003.1-2001
602      (POSIX).</para>
603
604    <para>&man.top.1; now supports a <option>-P</option> flag to
605      provide per-CPU usage statistics.</para>
606
607    <para>&man.zdump.8; is now working properly on 64 bit architectures.
608      </para>
609
610    <para>&man.traceroute.8; now has the ability to print the AS
611      number for each hop with the new <option>-a</option> switch; a
612      new <option>-A</option> option allows selecting a particular
613      WHOIS server.</para>
614
615    <para>&man.traceroute6.8; now supports a <option>-U</option> flag
616      to send probe packets with no upper-layer protocol, rather than
617      the usual UDP probe packets.</para>
618
619    <sect3 xml:id="rc-scripts">
620      <title><filename>/etc/rc.d</filename> Scripts</title>
621
622      <para/>
623
624    </sect3>
625  </sect2>
626
627  <sect2 xml:id="contrib">
628    <title>Contributed Software</title>
629
630    <para revision="251300">&man.jemalloc.3; has been updated to 3.4.0.
631      See <link xlink:href="http://www.facebook.com/jemalloc/">this link</link>.
632      for more details.</para>
633
634    <para role="merged"><application>AMD</application> has been updated from 6.0.10
635      to 6.1.5.</para>
636
637    <para role="merged"><application>awk</application> has been updated from 1 May
638      2007 release to the 23 October 2007 release.</para>
639
640    <para role="merged"><application>bzip2</application> has been updated from 1.0.4
641      to 1.0.5.</para>
642
643    <para revision="251794"><application>CVS</application> has been removed from the
644    base system, but is still available from ports</para>
645
646    <para revision="251886">Subversion has been imported into the base system and
647      is installed as <application>svnlite</application>.  <application>svnlite</application>
648      should only be used for checking out &os; source and committing, and does not
649      replace the full Subversion port.</para>
650
651    <para revision="234449"><application>file</application> has been updated to 5.11.</para>
652
653    <para revision="252726"><application>hostapd</application> has been
654      updated from 0.5.8 to 0.5.10.</para>
655
656    <para><application>IPFilter</application> has been updated to 5.1.2.</para>
657
658    <para revision="250592"><application>less</application> has been updated to
659      v458.</para>
660
661    <para><application>ncurses</application> has been updated from
662      to 5.7-20081102.</para>
663
664    <para role="merged"><application>OpenSSH</application> has been updated
665      to 6.4.</para>
666
667    <para revision="236109"><application>OpenPAM</application> has been updated to
668      the Micrampelis release.</para>
669
670    <para role="merged"><application>sendmail</application> has been updated from
671      8.14.1 to 8.14.7.</para>
672
673    <para role="merged">The timezone database has been updated from
674      the <application>tzdata2008h</application> release to
675      the <application>tzdata2009m</application> release.</para>
676
677    <para>The stdtime part of libc, &man.zdump.8; and &man.zic.8;
678      have been updated from the <application>tzcode2004a</application>
679      release to the <application>tzcode2009h</application> release.
680      If you have upgraded from source or via the &man.freebsd-update.8;,
681      then please run &man.tzsetup.8; to install a new /etc/localtime.
682      </para>
683
684    <para revision="252726"><application>WPA Supplicant</application> has been
685      updated to 2.0.</para>
686
687    <para role="merged"><application>xz</application> has been updated
688      from snapshot as of 12 April 2010 to 5.0.0.</para>
689
690    <para revision="258231" role="merged">&man.nvi.1; has been updated to 2.1.2.</para>
691
692    <para revision="254225">&man.nvi.1; supports wide character locales.</para>
693
694
695    <para role="merged"><application>sendmail</application> has been
696      updated from 8.14.7 to 8.14.8.</para>
697  </sect2>
698
699  <sect2 xml:id="ports">
700    <title>Ports/Packages Collection Infrastructure</title>
701
702    <para revision="257444">The pkg_add, pkg_create, pkg_delete, pkg_info,
703      pkg_updating, and pkg_version utilities have been removed.
704      &man.pkg.7; must now be used to install binary packages.  &man.pkg.7;
705      is the next generation &os; package manager, also referred to as "pkgng".</para>
706
707  </sect2>
708
709  <sect2 xml:id="releng">
710    <title>Release Engineering and Integration</title>
711
712    <para role="merged">The supported version of
713      the <application>GNOME</application> desktop environment
714      (<package>x11/gnome2</package>) has been
715      updated from 2.20.1 to 2.22.</para>
716
717  </sect2>
718
719  <sect2 xml:id="doc">
720    <title>Documentation</title>
721
722    <para/>
723
724  </sect2>
725</sect1>
726
727<sect1 xml:id="upgrade">
728  <title>Upgrading from previous releases of &os;</title>
729
730  <para arch="amd64,i386">Beginning with &os; 6.2-RELEASE,
731    binary upgrades between RELEASE versions (and snapshots of the
732    various security branches) are supported using the
733    &man.freebsd-update.8; utility.  The binary upgrade procedure will
734    update unmodified userland utilities, as well as unmodified GENERIC or
735    SMP kernels distributed as a part of an official &os; release.
736    The &man.freebsd-update.8; utility requires that the host being
737    upgraded have Internet connectivity.</para>
738
739  <para>Source-based upgrades (those based on recompiling the &os;
740    base system from source code) from previous versions are
741    supported, according to the instructions in
742    <filename>/usr/src/UPDATING</filename>.</para>
743
744  <important>
745    <para>Upgrading &os; should, of course, only be attempted after
746      backing up <emphasis>all</emphasis> data and configuration
747      files.</para>
748  </important>
749</sect1>
750</article>
751