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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: releng/10.0/release/doc/en_US.ISO8859-1/relnotes/article.xml 259810 2013-12-24 05:27:45Z 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>No security advisories.</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.  Please refer to:
215        <link xlink:href="http://wiki.freebsd.org/HyperV">FreeBSD and Microsoft Windows Server Hyper-V support</link>
216        for full instructions on how to set up Hyper-V support under FreeBSD.</para>
217
218      <para revision="254738">The &man.vmx.4; driver has been added.
219        &man.vmx.4; is a VMware VMXNET3 ethernet driver ported from
220        OpenBSD.</para>
221
222      <para revision="255744" arch="amd64,i386">Xen PVHVM virtualization is now
223        part of the GENERIC kernel.</para>
224
225    </sect3>
226
227    <sect3 xml:id="kernel-arm">
228      <title>ARM support</title>
229
230      <para revision="239922">Raspberry PI support has been added.
231        Refer to these <link xlink:href="http://kernelnomicon.org/?p=164">setup instructions</link>
232        and <link xlink:href="http://www.raspberrypi.org/quick-start-guide">quick start
233        guide</link>.</para>
234  
235      <para revision="253396">The default ABI on ARM is now the ARM EABI. This brings a number of
236        improvements and allows future support for VFP and Thumb-2.</para> 
237  
238      <para revision="239268">ARM support has been greatly improved, including support
239        for ARMv6 and ARMv7, SMP and thread-local storage (TLS).
240        Additionally support for some newer SoC like the MV78x60 and OMAP4 was added.
241        See <link xlink:href="http://lists.freebsd.org/pipermail/freebsd-arm/2012-August/003757.html">this announcement</link>
242        for further details.</para>
243  
244      <para revision="254918">Superpages support on ARM has been added.  Superpages support
245        provides improved performance and scalability by allowing TLB
246        translations to dynamically cover large physical memory regions.
247        All ARMv6 and ARMv7-based platforms can take advantage of this feature.
248        See <link xlink:href="https://wiki.freebsd.org/ARMSuperpages">this page</link>
249        for further details.</para>
250
251    </sect3>
252
253    <sect3 xml:id="boot">
254      <title>Boot Loader Changes</title>
255
256      <para arch="amd64,i386" role="merged">The BTX kernel used by the boot
257	loader has been changed to invoke BIOS routines from real
258	mode.  This change makes it possible to boot &os; from USB
259	devices.</para>
260
261      <para arch="amd64,i386" role="merged">A new gptboot boot loader has
262        been added to support booting from a GPT labeled disk.  A
263        new <command>boot</command> command has been added to
264        &man.gpt.8;, which makes a GPT disk bootable by writing the
265        required bits of the boot loader, creating a new boot
266        partition if required.</para>
267
268    </sect3>
269
270    <sect3 xml:id="proc">
271      <title>Hardware Support</title>
272
273      <para role="merged">The &man.cmx.4; driver, a driver for Omnikey CardMan 4040
274        PCMCIA smartcard readers, has been added.</para>
275
276      <para>The &man.syscons.4; driver now supports Colemak keyboard layout.</para>
277
278      <para role="merged">The &man.uslcom.4; driver, a driver for Silicon
279        Laboratories CP2101/CP2102-based USB serial adapters, has been
280        imported from OpenBSD.</para>
281
282      <sect4 xml:id="mm">
283	<title>Multimedia Support</title>
284
285        <para revision="240609">Support for version 2.0 of the USB Audio reference design
286          has been added. New devices should support higher bandwidth,
287          increased sampling frequency and wider dynamic range.</para>
288
289      </sect4>
290
291      <sect4 xml:id="net-if">
292	<title>Network Interface Support</title>
293
294	<para>The &man.ale.4; driver has been added to provide support
295	  for Atheros AR8121/AR8113/AR8114 Gigabit/Fast Ethernet controllers.</para>
296
297	<para>The &man.em.4; driver has been split into two drivers
298	  with some common parts.  The &man.em.4; driver will continue
299	  to support adapters up to the 82575, as well as new
300	  client/desktop adapters.  A new &man.igb.4; driver
301	  will support new server adapters.</para>
302
303	<para>The &man.jme.4; driver has been added to provide support
304	  for PCIe network adapters based on JMicron JMC250 Gigabit
305	  Ethernet and JMC260 Fast Ethernet controllers.</para>
306
307	<para>The &man.malo.4; driver has been added to provide
308	  support for Marvell Libertas 88W8335 based PCI network
309	  adapters.</para>
310
311	<para>The firmware for the &man.mxge.4; driver has been
312	  updated from 1.4.25 to 1.4.29.</para>
313
314	<para>The &man.sf.4; driver has been overhauled to improve its
315	  performance and to add support for checksum offloading.  It
316	  should also work on all architectures.</para>
317
318	<para>The &man.re.4; driver has been overhauled to fix a
319	  number of issues.  This driver now has Wake On LAN (WOL)
320	  support.</para>
321
322	<para>The &man.vr.4; driver has been overhauled to fix a
323	  number of outstanding issues.  It also now works on all
324	  architectures.</para>
325
326	<para arch="amd64,i386" role="merged">The &man.wpi.4; driver has
327	  been updated to include a number of stability fixes.</para>
328
329	<para revision="248925">The &man.cxgbe.4; driver has been updated to support
330	  40G/10G Ethernet NICs based on Chelsio's Terminator 5 (T5) ASIC.</para>
331
332	<para revision="256694">The iw_cxgbe driver has been added.  This is an
333	  experimental iWARP/RDMA driver
334	  (kernel verbs only) for Chelsio's T4 and T5 based cards.</para>
335
336	<para revision="255932">The Open Fabrics Enterprise Distribution (OFED) and
337	  OFED Infiniband core has been
338	  updated to the same version as supplied by Linux version 3.7</para>
339
340	<para revision="255932">The Mellanox Infiniband driver has been updated to firmware
341	  version 2.30.3200 for ConnectX3 NICs.  Support has been added for ConnectX3 VPI NICs, where
342	  each port can be used as Infiniband 56 GB/s or Ethernet 40 GB/s.  Support has been added
343	  for dynamically loading kernel modules for Infiniband core (ibcore) and
344	  IP over Infiniband (ipoib).</para>
345
346	<para revision="227614">&man.netmap.4; has been added.  &man.netmap.4; is a framework for
347          high-performance direct-to-hardware packet IO, offering low latency and high PPS
348          rates to userland applications while bypassing any kernel-side packet processing.
349          With &man.netmap.4; it is trivially possible to fully saturate a 10 Gbps network interface with
350          minimal packet sizes.  For more information, see:
351          <link xlink:href="http://info.iet.unipi.it/~luigi/netmap/">Netmap Project</link>.</para> 
352
353      </sect4>
354    </sect3>
355
356    <sect3 xml:id="net-proto">
357      <title>Network Protocols</title>
358
359      <para revision="228571">&man.carp.4; has been rewritten to make addresses
360        more sane from the viewpoint of routing daemons such as
361        quagga/zebra. It also brings support for a single redundant
362        address on the subnet (carpdev), switching state with
363        &man.ifconfig.8;, better locking and using modern kernel
364        interfaces to allocate multicast memberships.
365        Configuration of the CARP protocol via &man.ifconfig.8; has changed, as well as format
366	of CARP events submitted to &man.devd.8; has changed. See &man.carp.4;
367	for more information. The arpbalance feature of &man.carp.4; is currently
368	not supported anymore.</para>
369
370      <para revision="240233">The &man.pf.4; firewall now supports fine-grain locking
371        and better utilization on multi-cpu machines resulting in
372        significant improvements in performance.</para>
373
374      <para revision="250700">Support for up to 65536 routing tables has been
375        introduced.</para>
376
377      <para revision="248552">Support for setting/matching differentiated services
378        codepoints (DSCP) in IP header has been added to
379        &man.ipfw.8;.</para>
380
381    </sect3>
382
383    <sect3 xml:id="disks">
384      <title>Disks and Storage</title>
385
386      <para role="merged">The &man.aac.4; driver now supports volumes larger than
387        2TB in size.</para>
388
389      <para>The &man.ata.4; driver now supports a spindown command for
390        disks; after a configurable amount of time, if no requests
391        have been received for a disk, the disk will be spun down
392        until the next request.  The &man.atacontrol.8; utility now
393        supports a <command>spindown</command> command to configure
394        this feature.</para>
395
396      <para role="merged">The &man.hptrr.4; driver has been updated to version 1.2
397        from Highpoint.</para>
398
399      <para revision="240616">&man.nvme.4; has been added and provides NVM Express support.
400        NVM Express is an optimized register interface, command set and feature set of
401        PCI Express (PCIe)-based Solid-State Drives (SSDs).  For more information,
402        see <link xlink:href="http://http://www.nvmexpress.org/">nvmexpress.org</link>.</para>
403
404    </sect3>
405
406    <sect3 xml:id="fs">
407      <title>File Systems</title>
408
409      <para revision="255570">A new kernel-based iSCSI target and initiator has been
410        added</para>
411
412      <para revision="243246">UFS filesystems can now be enlarged with &man.growfs.8; while
413        mounted read-write. This is especially useful for virtual
414        machines, allowing the addition of more harddrive space without
415        interruption of service.</para>
416
417      <para revision="241519">A state of the art FUSE implementation is now part of the
418        base system. It allows the use of nearly all fusefs file
419        systems</para>
420
421      <sect4 xml:id="fs-zfs">
422	<title>ZFS</title>
423
424        <para revision="">&man.bsdinstall.8; now supports installing
425          ZFS on the root file system.  It includes a single configuration menu
426          that allows you to select all of the required details, including
427          which drives to use, what ZFS RAID level to use (taking into consideration
428          the selected number of drives), GPT or MBR, GELI encryption, forcing 4K sectors,
429          pool name, etc.</para>
430
431        <para revision="240868">TRIM support has been added for
432          ZFS.</para>
433
434        <para revision="246586">Support for the high performance LZ4 compression algorithm
435          has been added to ZFS. LZ4 is usually faster and can achieve a
436          higher compression ratio than LZJB, the default compression
437          algorithm</para>
438
439        <para revision="252140">Support for L2ARC compression has been added to ZFS.</para>
440
441        <para revision="243524">The zio nop-write improvement from Illumos
442          was imported into &os;. To reduce I/O, nop-write skips overwriting
443          data if the checksum (cryptographically secure) of new data
444          matches the checksum of existing data. It also saves space if
445          snapshots are in use.  This improvement only works only on
446          datasets with enabled compression, disabled deduplication and
447          sha256 checksums.</para>
448
449        <para>ZFS will now compare the checksums of incoming writes to
450          the checksum of the existing on-disk data and avoid issuing any
451          write I/O for data that has not changed. This will reduce I/O
452          as well as space usage because if the old block is referenced
453          by a snapshot, both copies of the block are kept even though
454          both contain the same data.</para>
455
456      </sect4>
457
458    </sect3>
459
460  </sect2>
461
462  <sect2 xml:id="userland">
463    <title>Userland Changes</title>
464
465   <para revision="255321">On platforms where &man.clang.1; is the default
466      system compiler, (such as i386, amd64, arm) GCC and GNU libstdc++ are no
467      longer built by default.  &man.clang.1; and libc++ from LLVM are used on
468      these platforms by instead.  GCC 4.2.1 and libstdc++ are still built
469      and used by default on pc98 and all other platforms where &man.clang.1;
470      is not the default system compiler.
471   </para>
472
473   <para revision="251662">&man.clang.1; and llvm have been updated to
474     version 3.3 release.  Please refer to
475     <link xlink:href="http://llvm.org/releases/3.3/tools/clang/docs/ReleaseNotes.html">
476     Clang 3.3 Release Notes.</link></para>
477
478    <para role="merged" revision="255949">BIND has been replaced by &man.unbound.8; for
479      local dns resolution in the base system.  With this change, nslookup
480      and dig are no longer a part of the base system.  Users should
481      instead use &man.host.1; and &man.drill.1; Alternatively,
482      nslookup and dig can be obtained by installing the
483      dns/bind-tools port.</para>
484
485    <para revision="225937">sysinstall has been removed from the base system.
486      Auxiliary libraries and tools used by sysinstall such as libdisk, libftpio,
487      and sade have also been removed.  sysinstall has been replaced by
488      &man.bsdinstall.8; and &man.bsdconfig.8;.</para>
489
490    <para revision="256106">&man.freebsd-version.1; has been added.  This tool
491      makes a best effort to determine the version and patch level of
492      the installed kernel and userland.</para>
493
494    <para revision="255191">GNU patch has been removed from the base system, and replaced
495      by a BSD-licensed &man.patch.1; program.</para>
496
497    <para revision="241511">GNU sort has been removed from the base system, and replaced
498      by a BSD-licensed &man.sort.1; program.</para>
499
500    <para revision="235723">Berkely yacc (byacc) has been imported
501      from <link xlink:href="http://invisible-island.net/byacc/">invisible island</link>.
502      This brings bison compatibilities to &man.yacc.1; while preserving full
503      backwards compatibility with previous version of &man.yacc.1;.</para>
504
505    <para revision="250881">&man.lex.1; has been replaced by flex 2.5.37</para>
506
507    <para revision="250699">&man.make.1; has been replaced with the 
508      "Portable" BSD make tool (bmake) from NetBSD.</para>
509
510    <para role="merged">The &man.adduser.8; utility now supports
511      a <option>-M</option> option to set the mode of a new user's
512      home directory.</para>
513
514    <para>BSD-licensed versions of &man.ar.1; and &man.ranlib.1;,
515      based on <filename>libarchive</filename>, have replaced the GNU
516      Binutils versions of these utilities.</para>
517
518    <para>BSD-licensed versions of &man.bc.1; and &man.dc.1; have
519      replaced their GNU counterparts.</para>
520
521    <para role="merged">&man.chflags.1; now supports a <option>-v</option> flag for
522      verbose output and a <option>-f</option> flag to ignore errors
523      with the same semantics as (for example)
524      &man.chmod.1;.</para>
525
526    <para>For compatibility with other implementations, &man.cp.1; now
527      supports a <option>-a</option> flag, which is equivalent to
528      specifying the <option>-RrP</option> flags.</para>
529
530    <para>BSD-licensed version of &man.cpio.1; based on
531      <filename>libarchive</filename>, has replaced the GNU cpio.
532      Note that the GNU cpio is still installed as
533      <filename>gcpio</filename>.</para>
534
535    <para>The &man.env.1; program now supports <option>-u
536      <replaceable>name</replaceable></option>
537      which will completely unset the given variable
538      <replaceable>name</replaceable> by removing it from the environment,
539      instead of just setting it to a null value.</para>
540
541    <para>The &man.fdopendir.3; library function has been added.</para>
542
543    <para role="merged">The &man.fetch.3; library now support HTTP 1.1
544      If-Modified-Since behavior.  The &man.fetch.1; program now
545      supports <option>-i <replaceable>filename</replaceable></option>
546      which will only download the specified HTTP URL if the content
547      is newer than <replaceable>filename</replaceable>.</para>
548
549    <para>&man.find.1; has been enhanced by the addition of a number
550      of primaries that were present in GNU find but not &os;
551      &man.find.1;.</para>
552
553    <para>&man.kgdb.1; now supports a new <command>add-kld</command>
554      command to make it easier to debug crash dumps with kernel
555      modules.</para>
556
557    <para>The &man.ls.1; program now supports a <option>-D</option>
558      option to specify a date format string to be used with the long
559      format (<option>-l</option>) output.</para>
560
561    <para>&man.nc.1; now supports a <option>-O</option> switch to
562      disable the use of TCP options.</para>
563
564    <para>&man.nc.1;'s <option>-o</option> switch has been deprecated.
565      It will be removed in a future release.</para>
566
567    <para>The &man.ping6.8; utility now returns <literal>2</literal>
568      when the packet transmission was successful but no responses
569      were received (this is the same behavior as &man.ping.8;).
570      It returned a non-zero value before this change.</para>
571
572    <para>The &man.procstat.1; utility has been added to display
573      detailed information about processes.</para>
574
575    <para role="merged">The &man.realpath.1; utility now supports
576      a <option>-q</option> flag to suppress warnings; it now also
577      accepts multiple paths on its command line.</para>
578
579    <para>&man.sh.1; has many bug fixes, some new features, and will now
580      refuse to parse some invalid scripts.  Additionally, it now
581      has filename completion and defaults to the &quot;emacs&quot; editing
582      mode.</para>
583
584    <para>The &man.split.1; utility now supports a <option>-n</option>
585      flag to split a file into a certain number of chunks.</para>
586
587    <para>The &man.tar.1; utility now supports a <option>-Z</option>
588      flag to enable &man.compress.1;-style
589      compression/decompression.</para>
590
591    <para>The &man.tar.1; utility now supports a
592      <option>--numeric-owner</option> flag to ignore user/group names
593      on create and extract.</para>
594
595    <para>The &man.tar.1; utility now supports an
596      <option>-S</option> flag to sparsify files on extraction.</para>
597
598    <para>The &man.tar.1; utility now supports a <option>-s</option>
599      flag to substitute filenames based on the specified regular
600      expression.</para>
601
602    <para>The &man.tcgetsid.3; library function has been added to
603      return the process group ID for the session leader for the
604      controlling terminal.  It is defined in IEEE Std 1003.1-2001
605      (POSIX).</para>
606
607    <para>&man.top.1; now supports a <option>-P</option> flag to
608      provide per-CPU usage statistics.</para>
609
610    <para>&man.zdump.8; is now working properly on 64 bit architectures.
611      </para>
612
613    <para>&man.traceroute.8; now has the ability to print the AS
614      number for each hop with the new <option>-a</option> switch; a
615      new <option>-A</option> option allows selecting a particular
616      WHOIS server.</para>
617
618    <para>&man.traceroute6.8; now supports a <option>-U</option> flag
619      to send probe packets with no upper-layer protocol, rather than
620      the usual UDP probe packets.</para>
621
622    <sect3 xml:id="rc-scripts">
623      <title><filename>/etc/rc.d</filename> Scripts</title>
624
625      <para>The followoing &man.rc.8; scripts have been added:</para>
626
627      <informaltable frame="none" pgwide="0">
628	<tgroup cols="2">
629	  <colspec colwidth="1*" />
630	  <colspec colwidth="1*" />
631	  <thead>
632	    <row>
633	      <entry>&man.rc.8; Script</entry>
634	      <entry>Function</entry>
635	    </row>
636	  </thead>
637
638	  <tbody>
639	    <row>
640	      <entry><filename>ctld</filename></entry>
641	      <entry><para>iSCSI target daemon startup
642		  script</para></entry>
643	    </row>
644	    <row>
645	      <entry><filename>iscsictl</filename></entry>
646	      <entry><para>iSCSI initiator management utility
647		startup script</para></entry>
648	    </row>
649	    <row>
650	      <entry><filename>iscsid</filename></entry>
651	      <entry><para>iSCSI initiatior daemon startup
652		script</para></entry>
653	    </row>
654	    <row>
655	      <entry><filename>kfd</filename></entry>
656	      <entry><para>Kerberos ticket forwarding daemon
657		startup script</para></entry>
658	    </row>
659	    <row>
660	      <entry><filename>local_unbound</filename></entry>
661	      <entry><para>Unbound startup script for the local
662		caching resolver</para></entry>
663	    </row>
664	    <row>
665	      <entry><filename>postrandom</filename></entry>
666	      <entry><para>Generates a new entropy file at system
667		boot</para></entry>
668	    </row>
669	    <row>
670	      <entry><filename>swap</filename></entry>
671	      <entry><para>Replaces <filename>swap1</filename>;
672		enable swap at system boot</para></entry>
673	    </row>
674	    <row>
675	      <entry><filename>swaplate</filename></entry>
676	      <entry><para>Enables swap with <quote>late</quote>
677		set at system boot</para></entry>
678	    </row>
679	    <row>
680	      <entry><filename>utx</filename></entry>
681	      <entry><para>User accounting database startup and
682		shutdown script</para></entry>
683	    </row>
684	  </tbody>
685	</tgroup>
686      </informaltable>
687
688      <para>The following &man.rc.8; scripts have been removed:</para>
689
690      <informaltable frame="none" pgwide="0">
691	<tgroup cols="2">
692	  <colspec colwidth="1*" />
693	  <thead>
694	    <row>
695	      <entry>&man.rc.8; Script</entry>
696	      <entry><para>Reason</para></entry>
697	    </row>
698	  </thead>
699
700	  <tbody>
701	    <row>
702	      <entry><filename>encswap</filename></entry>
703	      <entry><para>Replaced by <filename>swap</filename> and
704		<filename>swaplate</filename></para></entry>
705	    </row>
706	    <row>
707	      <entry><filename>named</filename></entry>
708	      <entry><para>Removed with
709		  <application>BIND</application></para></entry>
710	    </row>
711	    <row>
712	      <entry><filename>swap1</filename></entry>
713	      <entry><para>Replaced by <filename>swap</filename> and
714		<filename>swaplate</filename></para></entry>
715	    </row>
716	  </tbody>
717	</tgroup>
718      </informaltable>
719    </sect3>
720  </sect2>
721
722  <sect2 xml:id="contrib">
723    <title>Contributed Software</title>
724
725    <para revision="251300">&man.jemalloc.3; has been updated to 3.4.0.
726      See <link xlink:href="http://www.facebook.com/jemalloc/">this link</link>.
727      for more details.</para>
728
729    <para role="merged"><application>AMD</application> has been updated from 6.0.10
730      to 6.1.5.</para>
731
732    <para role="merged"><application>awk</application> has been updated from 1 May
733      2007 release to the 23 October 2007 release.</para>
734
735    <para role="merged"><application>bzip2</application> has been updated from 1.0.4
736      to 1.0.5.</para>
737
738    <para revision="251794"><application>CVS</application> has been removed from the
739    base system, but is still available from ports</para>
740
741    <para revision="251886">Subversion has been imported into the base system and
742      is installed as <application>svnlite</application>.  <application>svnlite</application>
743      should only be used for checking out &os; source and committing, and does not
744      replace the full Subversion port.</para>
745
746    <para revision="234449"><application>file</application> has been updated to 5.11.</para>
747
748    <para revision="252726"><application>hostapd</application> has been
749      updated from 0.5.8 to 0.5.10.</para>
750
751    <para><application>IPFilter</application> has been updated to 5.1.2.</para>
752
753    <para revision="250592"><application>less</application> has been updated to
754      v458.</para>
755
756    <para><application>ncurses</application> has been updated from
757      to 5.7-20081102.</para>
758
759    <para role="merged"><application>OpenSSH</application> has been updated
760      to 6.4.</para>
761
762    <para revision="236109"><application>OpenPAM</application> has been updated to
763      the Micrampelis release.</para>
764
765    <para role="merged"><application>sendmail</application> has been updated from
766      8.14.1 to 8.14.7.</para>
767
768    <para role="merged">The timezone database has been updated from
769      the <application>tzdata2008h</application> release to
770      the <application>tzdata2009m</application> release.</para>
771
772    <para>The stdtime part of libc, &man.zdump.8; and &man.zic.8;
773      have been updated from the <application>tzcode2004a</application>
774      release to the <application>tzcode2009h</application> release.
775      If you have upgraded from source or via the &man.freebsd-update.8;,
776      then please run &man.tzsetup.8; to install a new /etc/localtime.
777      </para>
778
779    <para revision="252726"><application>WPA Supplicant</application> has been
780      updated to 2.0.</para>
781
782    <para role="merged"><application>xz</application> has been updated
783      from snapshot as of 12 April 2010 to 5.0.0.</para>
784
785    <para revision="258231" role="merged">&man.nvi.1; has been updated to 2.1.2.</para>
786
787    <para revision="254225">&man.nvi.1; supports wide character locales.</para>
788
789  </sect2>
790
791  <sect2 xml:id="ports">
792    <title>Ports/Packages Collection Infrastructure</title>
793
794    <para revision="257444">The pkg_add, pkg_create, pkg_delete, pkg_info,
795      pkg_updating, and pkg_version utilities have been removed.
796      &man.pkg.7; must now be used to install binary packages.  &man.pkg.7;
797      is the next generation &os; package manager, also referred to as "pkgng".</para>
798
799  </sect2>
800
801  <sect2 xml:id="releng">
802    <title>Release Engineering and Integration</title>
803
804    <para role="merged">The supported version of
805      the <application>GNOME</application> desktop environment
806      (<package>x11/gnome2</package>) has been
807      updated from 2.20.1 to 2.22.</para>
808
809  </sect2>
810
811  <!--
812  <sect2 xml:id="doc">
813    <title>Documentation</title>
814
815    <para/>
816
817  </sect2>
818  -->
819</sect1>
820
821<sect1 xml:id="upgrade">
822  <title>Upgrading from previous releases of &os;</title>
823
824  <para arch="amd64,i386">Beginning with &os; 6.2-RELEASE,
825    binary upgrades between RELEASE versions (and snapshots of the
826    various security branches) are supported using the
827    &man.freebsd-update.8; utility.  The binary upgrade procedure will
828    update unmodified userland utilities, as well as unmodified GENERIC or
829    SMP kernels distributed as a part of an official &os; release.
830    The &man.freebsd-update.8; utility requires that the host being
831    upgraded have Internet connectivity.</para>
832
833  <para>Source-based upgrades (those based on recompiling the &os;
834    base system from source code) from previous versions are
835    supported, according to the instructions in
836    <filename>/usr/src/UPDATING</filename>.</para>
837
838  <important>
839    <para>Upgrading &os; should, of course, only be attempted after
840      backing up <emphasis>all</emphasis> data and configuration
841      files.</para>
842  </important>
843</sect1>
844</article>
845