CHANGES.txt

   1 CHANGES.txt - 2006-05-22
   2 ------------------------
   3
   4 CHANGES IN CUPS V1.2.1
   5
   6         - The web interface did not handle reloads properly for
   7           MSIE (STR #1716)
   8         - The configure script no longer adds linker rpath
   9           options when they are unnecessary.
  10         - The scheduler could crash printing a debug message on
  11           Solaris (STR #1714)
  12         - The --enable-32bit and --enable-64bit configure options
  13           did not always work.
  14         - The password prompt showed the domain socket address
  15           instead of "localhost" for local authentication (STR
  16           #1706)
  17         - The web interface filtered the list of printers even if
  18           the user wasn't logged in (STR #1700)
  19         - The IPP backend did not work reliably with some Xerox
  20           printers (STR #1704)
  21         - Trailing banners were not added when printing a single
  22           file (STR #1698)
  23         - The web interface support programs crashed on Solaris
  24           (STR #1699)
  25         - cupstestppd incorrectly reported problems with
  26           *1284DeviceID attributes (STR #1710)
  27         - Browsing could get disabled after a restart (STR #1670)
  28         - Custom page sizes were not parsed properly (STR #1709)
  29         - The -U option wasn't supported by lpadmin (STR #1702)
  30         - The -u option didn't work with lpadmin (STR #1703)
  31         - The scheduler did not create non-blocking back-channel
  32           pipes, which caused problems when the printer driver
  33           did not read the back-channel data (STR #1705)
  34         - The scheduler no longer uses chunking in responses to
  35           clients - this caused problems with older versions of
  36           CUPS like 1.1.17 (PR #6143)
  37         - Automatic raw printing was broken (STR #1667)
  38         - 6-up printing was broken (STR #1697)
  39         - The pstops filter did not disable CTRL-D processing on
  40           the printer/RIP.
  41         - ppdOpen*() did not load custom options properly (STR
  42           #1680)
  43         - "Set Printer Options" in the web interface did not
  44           update the DefaultImageableArea or
  45           DefaultPaperDimension attributes in the PPD file (STR
  46           #1689)
  47         - Fixed compile errors (STR #1682, STR #1684, STR #1685,
  48           STR #1690)
  49         - The lpstat command displayed the wrong error message
  50           for a missing destination (STR #1683)
  51         - Revised and completed the Polish translation (STR
  52           #1669)
  53         - Stopped jobs did not show up in the list of active jobs
  54           (STR #1676)
  55         - The configure script did not use the GNU TLS
  56           "libgnutls-config" script to find the proper compiler
  57           and linker options.
  58         - The imagetoraster filter did not correctly generate
  59           several 1, 2, and 4-bit color modes.
  60         - cupsRasterWritePixels() could lose track of the current
  61           output row.
  62         - cupsRasterReadPixels() did not automatically swap
  63           12/16-bit chunked pixel data.
  64         - Moved the private _cups_raster_s structure out of the
  65           public header.
  66         - Updated the CUPS raster format specification to include
  67           encoding rules and colorspace definitions.
  68         - The Zebra PPD files had the wrong PostScript code for
  69           the "default" option choices.
  70         - The imagetoraster filter did not generate correct CIE
  71           XYZ or Lab color data.
  72         - The cups-config script did not work when invoked from a
  73           source directory (STR #1673)
  74         - The SNMP backend did not compile on systems that used
  75           the getifaddrs emulation functions (STR #1668)
  76
  77
  78 CHANGES IN CUPS V1.2.0
  79
  80         - Documentation updates (STR #1618, STR #1620, STR #1622,
  81           STR #1637)
  82         - Static file copy buffers reduced from 64k to 32k to
  83           work around bogus MallocDebug library assumptions (STR
  84           #1660)
  85         - The scheduler did not decode the backend exit code
  86           properly (STR #1648)
  87         - The MacOS X USB backend did not report the 1284 device ID,
  88           nor did it fix device IDs returned by HP printers.
  89         - The scheduler started more slowly than 1.1.x with large
  90           numbers of printers (STR #1653)
  91         - cupsRasterInterpretPPD() didn't support the
  92           cupsPreferredBitsPerColor attribute, and imagetoraster
  93           didn't use the new API.
  94         - The "make test" script did not create all of the necessary
  95           subdirectories for testing (STR #1638)
  96         - The scheduler did not prevent rotation of logs
  97           redirected to /dev/null (STR #1651)
  98         - "make test" did not include the SNMP backend in the
  99           test environment (STR #1625)
 100         - The EPM packaging files did not work (STR #1621)
 101         - "Use Default Configuration" inserted a broken
 102           configuration file (STR #1624)
 103         - Redirects in the web interface did not always preserve
 104           the encrypted status of a connection (STR #1603)
 105         - Added the Apple "pap" backend.
 106         - Added CUPS library to CUPS Image shared library
 107           linkage to support Linux --as-needed linker option
 108           (STR #1606)
 109         - Fixed support for --enable-pie (STR #1609)
 110         - The pdftops filter did not validate the length of the
 111           encryption key (STR #1608)
 112         - Updated the Polish localization.
 113         - "Encryption Required" in the cupsd.conf file now only
 114           requires encryption when the connection is not over the
 115           loopback interface or domain socket.
 116         - Printer names containing "+" were not quoted properly in
 117           the web interface (STR #1600)
 118         - The SNMP backend now reports the make and model in the
 119           information string so that the auto-generated printer
 120           name is more useful than just an IP address.
 121
 122
 123 CHANGES IN CUPS V1.2rc3
 124
 125         - The cups-lpd program always did reverse lookups on the
 126           client address, which could be a performance problem.
 127           Added a "-n" option to disable lookups.
 128         - When configured with SSL support, require encryption by
 129           default when displaying the /admin location (STR #1592)
 130         - The next job ID was not computed correctly if the job
 131           cache file got out of sync with the spool directory
 132           (STR #1582)
 133         - The PNG image handling code used deprecated functions
 134           from libpng (STR #1587)
 135         - Added a Polish translation (STR #1584, STR #1586)
 136         - More changes to the scheduler to improve battery life
 137           on portable devices (STR #1583)
 138         - Changed the default log level for status messages back
 139           to "DEBUG" to be consistent with CUPS 1.1.x (STR #1579)
 140         - The error string was not set properly when
 141           cupsDoFileRequest() was given the name of a directory
 142           (STR #1578)
 143         - Fixed handling of job-hold-until (STR #1581)
 144         - Added explicit notes to the cupsaddsmb man page
 145           explaining that the driver filenames are case-sensitive
 146           under UNIX and that they must be all lowercase (Windows
 147           2000) or all UPPERCASE (Windows 95/98/Me) to work (STR
 148           #1568)
 149         - The USB backend incorrectly split the manufacturer name
 150           if it contained spaces (STR #1566)
 151         - The scheduler would hang when listing PPD files for a
 152           manufacturer whose name contained spaces (STR #1567)
 153         - Added the SNMP backend for network printer discovery
 154           (STR #1555)
 155         - cupstestppd now fails PPD files with 1284DeviceId
 156           instead of 1284DeviceID, and cups-driverd uses a
 157           case-insensitive comparison when looking for it (STR
 158           #1573)
 159         - cupsDoFileRequest() and cupsDoRequest() now work
 160           properly with non-blocking HTTP connections.
 161         - Added Swedish translation (STR #1569)
 162         - "make install" now installs the MIME files with world
 163           read permissions (STR #1565)
 164         - More CDSA encryption support fixes (STR #1563)
 165         - Updated the default mime.types file to support printing
 166           of files that do not have a locally-recognized MIME
 167           media type to raw or System V queues.
 168         - Updated the serial port detection code on Linux (STR
 169           #1562)
 170         - Added some more error checking to httpGetHostname()
 171           (STR #1561)
 172         - The title of some administration pages was not
 173           localized (STR #1548)
 174         - The edit-config.tmpl file was not generated or
 175           installed for the Spanish or Japanese localizations
 176           (STR #1547)
 177         - The mimeDelete() function freed the types before the
 178           filters, but the filters needed the type data (STR #1558)
 179         - The scheduler didn't keep track of the status pipes
 180           properly, leading to a bad select() for multi-file jobs
 181           (STR #1559)
 182         - The cupstestdsc program didn't validate the ordinal
 183           page number value for %%Page: comments.
 184
 185
 186 CHANGES IN CUPS V1.2rc2
 187
 188         - The scheduler was not always using the string pool,
 189           causing random crashes.
 190         - The lpmove and the web interface's Move Job button did
 191           not work with stopped jobs (STR #1534)
 192         - The PostScript filter did not handle the page-set
 193           option properly with number-up printing (STR #1543)
 194         - The scheduler now only warns about unsupported ACLs
 195           once (STR #1532)
 196         - The "fitplot" option did not work with output from
 197           Mozilla (STR #1542)
 198         - The imagetops filter did not work with Level 2 or 3
 199           printers (STR #1533)
 200         - The scheduler now recognizes PostScript files with PJL
 201           commands that do not include an ENTER LANGUAGE command.
 202         - Added --with-printcap configure option.
 203         - 64-bit SSL fixes for MacOS X.
 204         - The scheduler didn't send some printer state change
 205           events.
 206         - The scheduler didn't send jobs to busy remote printers.
 207         - Fixed some problems with the launchd support.
 208         - Added new USB printer backend for MacOS X.
 209         - The PostScript filter now handles files that start with
 210           an incomplete PJL header (PR #6076)
 211         - The web interface language selection code did not try
 212           the generic language localization (STR #1531)
 213         - The language cache, string pool, and transcoding caches
 214           are now process global instead of per-thread to avoid
 215           problems with GNOME and to allow for data sharing
 216           between threads (STR #1530)
 217         - Fixed a CUPS 1.1.x compatibility bug (STR #1528)
 218         - The web interface redirection after certain printer
 219           administration tasks was broken (STR #1516)
 220         - Web interface authorization could get stuck (STR #1512)
 221         - Localization updates (STR #1513, STR #1518, STR #1520)
 222         - The pstops filter didn't work with some files (STR
 223           #1523)
 224         - "./configure --enable-static" didn't work (STR #1522)
 225         - The scheduler was not using the configured default
 226           Group (STR #1521)
 227         - The web interface still did not show the localized time
 228           and date for some locales and systems (STR #1509)
 229         - httpAddrGetList() would crash on systems without
 230           getaddrinfo().
 231         - Socket URIs without a trailing slash would cause the
 232           port number to not be accepted (STR #1519)
 233         - Local raw and System V printers were not advertised as
 234           such for printer browsing (STR #1502)
 235         - The RPM spec file incorrectly put duplicate copies of
 236           the Japanese and Spanish web interface templates in the
 237           main cups package (STR #1517)
 238         - cupsSetDests() did not explicitly set the permissions
 239           of the /etc/cups/lpoptions file (STR #1508)
 240         - The lpq command crashed with the -h option (STR #1515)
 241
 242
 243 CHANGES IN CUPS V1.2rc1
 244
 245         - Documentation updates (STR #1497, STR #1498)
 246         - The scheduler now redirects browsers to https: URLs
 247           when encryption is required.
 248         - The scheduler would crash when printing with a banner
 249           (STR #1500)
 250         - cups-driverd did not use the LanguageEncoding attribute
 251           in PPD files to convert the NickName to UTF-8 (STR
 252           #1503)
 253         - The lpadmin command could not set the
 254           printer-error-policy attribute (STR #1504)
 255         - The web interface did not show the time and date in the
 256           correct format for the locale (STR #1505)
 257         - CUPS no longer accepts print jobs if a printer does not
 258           support the file format (STR #1501)
 259         - Cleaned up the PostScript filter (pstops) so that it
 260           properly supports %%IncludeFeature and page scaling
 261           (STR #1453)
 262         - Fixed the cupsFileRewind() and cupsFileSeek() functions
 263           to work properly with uncompressed files.
 264         - Added cupsFileGetLine(), cupsFileStderr(),
 265           cupsFileStdin(), and cupsFileStdout() functions to the
 266           CUPS library.
 267         - Added a new cupstestdsc program to test the DSC
 268           conformance of PostScript files.
 269         - Added KDE/GNOME icons and a Manage Printers menu item.
 270         - Added --enable-image and --enable-pdftops configure
 271           options to control whether the image and PDF filters
 272           are built and installed (default = yes for all
 273           platforms but MacOS X)
 274         - Fixed a minor memory leak in the PPD API.
 275         - Fixed transcoding issues (STR #1493)
 276         - The scheduler now enforces a minimum job cost of 100
 277           when doing FilterLimit checks.
 278         - The scheduler would leak file descriptors when printing
 279           to raw queues (STR #1491)
 280         - The IPv6 support did not compile on Tru64 UNIX (STR
 281           #1488)
 282         - ppdOpen2() now converts the NickName and all UI text to
 283           UTF-8 (STR #1475)
 284         - The Set Allowed Users web page did not work (STR #1486)
 285         - When the default policy was not set or set to a non-
 286           existing policy, the scheduler did not set the default
 287           policy name to "default" (STR #1484)
 288         - The Zebra CPCL driver did not use the correct righthand
 289           margin for the 4" wide label sizes.
 290         - Fixed a problem with the parsing of fractional real
 291           numbers in PPD files.
 292         - Added Spanish localization files (STR #1480)
 293         - Fixed localization of a few scheduler messages (STR
 294           #1478)
 295         - Fixed support for HEAD requests in the scheduler (STR
 296           #1481)
 297
 298
 299 CHANGES IN CUPS V1.2b2
 300
 301         - Updated the CUPS design description.
 302         - Added --enable-32bit and --enable-64bit configure
 303           options to allow building of separate 32/64-bit
 304           libraries on systems that support both environments
 305           (STR #1472)
 306         - Various compiler warning fixes.
 307         - Fixes for Solaris 10 builds against old GNU TLS and
 308           LDAP libraries.
 309         - Added a cupsArrayUserData() function to retrieve the
 310           user data pointer for an array (useful for typing
 311           arrays)
 312         - The ppdEmitString() function did not compute the
 313           required buffer size properly, leading to dropped
 314           characters on the end of the printer commands in pstops
 315           and imagetops (STR #1470)
 316
 317
 318 CHANGES IN CUPS V1.2b1
 319
 320         - The serial backend now supports Equinox 8-port serial
 321           hubs (STR #526)
 322         - The IPP backend now supports a compression option to
 323           compress print files as they are sent to the remote
 324           server (STR #956)
 325         - The CUPS browse protocol now supports passing of
 326           default options and browse timeout values from the
 327           server to the clients (STR #800)
 328         - Implicit classes that timed out could cause the
 329           scheduler to crash (STR #1439)
 330         - Added DragonFly support in local device backends (STR
 331           #1362)
 332         - Added LDAP printer browsing support (STR #338)
 333         - Added official support for printer maintenance commands
 334           via the CUPS Command file format and hooks in the
 335           printer-type and web interfaces (STR #932)
 336         - The HP-GL/2 filter could get in an infinite loop trying
 337           to convert HP-PCL files (STR #1415)
 338         - CUPS now implements the HTTP/1.1 Expect header (STR
 339           #1407)
 340         - Options in PPD files are no longer automatically put in
 341           an "Extra" group; rather, all options that are not
 342           inside an Open/CloseGroup will be placed in the
 343           "General" group (STR #1385)
 344         - The scheduler now creates a job-uuid attribute that
 345           uniquely identifies a job on a network (STR #1410)
 346         - The init script now unsets the TMPDIR environment
 347           variable to prevent user temporary directories from
 348           being used by cupsd accidentally (STR #1424)
 349         - Added support for launchd on MacOS X.
 350         - Added support for notify_post on MacOS X.
 351         - Added support for DBUS on Linux.
 352         - All of the Berkeley (except for lpc) and System V
 353           commands now support specification of user, host, and
 354           port (STR #1028, STR #1029, STR #1087)
 355         - The lpmove command now allows you to move all jobs for
 356           a given queue (STR #56)
 357         - The web interface now supports moving of a job or jobs
 358           to another queue (STR #56)
 359         - The web interface now provides searching, paging, and
 360           changing of the sort/display order of classes, jobs,
 361           and printers.
 362         - cupsaddsmb now accepts a password on the command-line
 363           and supports passwords with special characters (STR
 364           #822, STR #1236)
 365         - ppdLoad*() no longer tries to "fix" bad characters in
 366           UI text (STR #1101)
 367         - Printer names can now (reliably) contain Unicode
 368           characters (STR #896)
 369         - The lpstat command now shows the time and date of the
 370           last printer state change instead of the hardcoded "Jan
 371           01 00:00" (STR #659)
 372         - The scheduler now adds a job-actual-printer-uri
 373           attribute to job objects when printing to a class (STR
 374           #116)
 375         - The scheduler now logs log file open errors to the
 376           system log (STR #1289)
 377         - The scheduler now sets the job-originating-user-name to
 378           the authenticated username, if available (STR #1318)
 379         - The scheduler now only updates the permissions of SSL
 380           keys and certificates when they are under the
 381           ServerRoot directory (STR #1324)
 382         - The rastertodymo driver has been renamed to
 383           rastertolabel (a symlink is installed so that existing
 384           queues continue to work) and now also supports Zebra's
 385           CPCL language.
 386         - The lpstat command could show the wrong active job for
 387           a printer (STR #1301)
 388         - Fixed a potential crash problem in the scheduler when
 389           aborting a CGI program (STR #1290)
 390         - Added a "cancel all jobs" button to the class and
 391           printer web interfaces (STR #1140)
 392         - The add-printer web page now shows the
 393           set-printer-options page after the printer has been
 394           added (STR #690)
 395         - The classes web page now provides links to each of the
 396           member printers (STR #307)
 397         - CUPS now handles HTTP request/response lines up to 32k
 398           in length; this is mainly for better cookie support
 399           (STR #1274)
 400         - Added support for the Apache PassEnv and SetEnv
 401           directives to cupsd.conf (STR #853)
 402         - Added large file (64-bit) support (STR #541)
 403         - Fixed a performance issue with the ippReadIO()
 404           implementation (STR #1284)
 405         - Fixed a performance issue with the scheduler's implicit
 406           class implementation (STR #1283)
 407         - The pdftops filter now adds the Title and Creator
 408           fields from the PDF file to the PostScript document
 409           comments section (STR #539, STR #830)
 410         - Added a new cups_array_t and cupsArray*() functions to
 411           the CUPS API to support sorted lists of data.
 412         - Made the CUPS API library thread-safe (STR #1276)
 413         - Added "media" option support for EFI EFMediaType option
 414           (STR #902)
 415         - Added write buffering to the HTTP code to improve
 416           performance (STR #547)
 417         - The scheduler now uses the attributes-natural-language
 418           attribute to localize banner pages (STR #386)
 419         - The scheduler now returns the address that was used to
 420           connect to it (STR #1076)
 421         - Fixed a problem with N-up printing and OpenOffice (STR
 422           #576)
 423         - Added support for the GCC position independent
 424           executable options (STR #1209)
 425         - Added new BrowseLocalProtocols and
 426           BrowseRemoteProtocols directives to cupsd.conf,
 427           allowing for different browse protocols for local and
 428           remote printers (STR #877)
 429         - PPD files can now contain strings up to 256k in length
 430           (STR #1215)
 431         - The pstops filter now supports the IncludeFeature DSC
 432           comment (STR #1212)
 433         - The pstops filter now disables the setpagedevice
 434           procedure when doing N-up printing (STR #1161)
 435         - The serial backend now supports "stop=1", "stop=2",
 436           "parity=space", and "parity=mark" options (STR #1155)
 437         - "make install" no longer overwrites an existing PAM
 438           configuration file (STR #1064)
 439         - The scheduler now closes all files on startup when run
 440           in daemon mode (STR #1009)
 441         - Added a new RGBW colorspace to the CUPS raster format
 442           (STR #1071)
 443         - The pdftops filter now sets the page size based on the
 444           media box when not scaling the output (STR #912)
 445         - The pdftops filter now supports masked images (STR
 446           #281)
 447         - The pdftops filter produced large output when rendering
 448           PDF files containing lot of repeated images (STR #327)
 449         - The pdftops filter now minimizes print processing of
 450           PDF files when using the page-ranges option (STR #273)
 451         - Updated pdftops filter to Xpdf 3.01.
 452         - Added new cupsBackchannelRead() and
 453           cupsBackchannelWrite() functions, as well as
 454           backchannel support to the parallel, serial, socket,
 455           and USB backends (STR #1252)
 456         - The parallel and USB backends now treat a "no space
 457           available" error as an out-of-paper condition (STR
 458           #1225)
 459         - The "lpc" command now supports the "status all" command
 460           (STR #1004)
 461         - ippReadIO() did not read collections properly (STR
 462           #1249)
 463         - The "make test" script now creates the test files in
 464           "/tmp/cups-$USER" instead of "/tmp/$USER" (STR #981)
 465         - All backends now abort on error when printing a job to
 466           a class - this allows the next printer in the class to
 467           print the job (STR #1084)
 468         - The scheduler now verifies that a printer supports
 469           Letter or A4 media sizes before setting them as the
 470           initial default (STR #1250)
 471         - The cupstestppd program now flags bad Resolution
 472           options (STR #1269)
 473         - The USB backend now retries printing when the printer
 474           is disconnected or turned off (STR #1267)
 475         - Added new httpGetHostname() function to CUPS API, and
 476           use it instead of gethostname() so that the web
 477           interface will work correctly on systems whose hostname
 478           is not the FQDN (STR #1266)
 479         - The scheduler now stops printers if the backend for the
 480           queue is missing on startup (STR #1265)
 481         - The configure script now supports "--disable-library"
 482           to disable particular image file format support
 483           libraries, even if they are available on the build
 484           system (STR #1248)
 485         - The IPP backend did not always report on the total
 486           number of pages that were printed (STR #1251)
 487         - The lpstat program could display garbage date and time
 488           values for locales whose date format exceeded 31
 489           characters (STR #1263)
 490         - The cupstestppd program would segfault when testing
 491           certain broken PPD files (STR #1268)
 492         - Dramatically reduced the overhead of implicit classes.
 493         - Added new cupsDir*() functions to CUPS API.
 494         - Printers can now be published individually for sharing.
 495         - Fixed a bug in the scheduler's startup signalling code
 496           which caused cupsd to send the SIGUSR1 signal to the
 497           init process instead of the original parent process
 498           (STR #1258)
 499         - Added new on-line help CGI to web interface to provide
 500           searchable help.
 501         - Devices are now tracked dynamically, with each query
 502           doing a new device scan.  This eliminates a previous
 503           startup delay caused by slow backends and allows new
 504           printers to be seen without restarting the server,
 505           however it limits the amount of device URI checking
 506           that can be done (basically now the scheduler only
 507           requires a URI with a method that is a listed backend)
 508         - Added new printer auto-detection, server configuration,
 509           and log file viewing to the administration web page.
 510         - Added new "set allowed users" web interface to set the
 511           list of allowed users for a printer or class.
 512         - The scheduler, command-line, and web interfaces now
 513           limit the list of printers and classes to those
 514           accessible by a user.
 515         - cupsMarkOptions() now handles more non-standard
 516           duplexing options and choices (STR #915)
 517         - cups-lpd now honors remote banner requests with the
 518           "standard" banner whenever a printer does not have one
 519           defined (STR #1220)
 520         - The scheduler's denial-of-service checks did not work
 521           properly with IPv6 addresses (STR #1134)
 522         - The lp and lpr commands did not error out properly when
 523           they were unable to write to a temporary file (STR
 524           #1129)
 525         - The pstops filter did not handle Adobe-specific
 526           comments in Windows NT driver output (STR #1085)
 527         - "lpstat -l -p" incorrectly reported the printer
 528           interface (STR #936)
 529         - The web interface now operates exclusively with the
 530           UTF-8 encoding, and sends the appropriate character set
 531           and header information to the web browser (STR #919,
 532           STR #1007)
 533         - Added a "set allowed users" interface to the web
 534           interface so that you can set the list of allowed or
 535           denied users/groups for a printer or class.
 536         - Disallow the "#" character in printer names, since it
 537           has special meaning in the shell, config files, and in
 538           URIs (STR #917, STR #1202)
 539         - Added a new application/x-csource MIME type, and
 540           support for it to the texttops filter so that you can
 541           pretty print plain text files without the C/C++
 542           keywords being highlighted.
 543         - The pdftops filter did not compile with GCC 4.0 (STR
 544           #1226)
 545         - The texttops filter did not highlight preprocessor
 546           directives followed by a tab properly.
 547         - HP PJL output now uses both JOB DISPLAY and RDYMSG
 548           commands to show the current job on the printer's
 549           display (STR #1218)
 550         - Local authentication certificates are now stored in
 551           /var/run/cups/certs by default instead of
 552           /etc/cups/certs (STR #1211)
 553         - Backends now use "&" to separate options in device
 554           URIs; "+" is still recognized but is deprecated (STR
 555           #842)
 556         - The USB backend no longer supports the usb:/dev/foo
 557           format on systems that support device ID queries.
 558         - Forced classification markings did not work when the
 559           job-sheets parameters were "none,none".
 560         - "lpstat -l -p" incorrectly showed all users as allowed,
 561           even if the queue was restricted to certain users (STR
 562           #801)
 563         - The scheduler now automatically detects SSL/TLS clients
 564           without using the SSLPort/SSLListen directives.
 565         - The CUPS API and scheduler no longer support SSLv2-
 566           encrypted connections.
 567         - Updated the cupsaddsmb utility to correctly export the
 568           CUPS driver for Windows.
 569         - Fixed a signal-handling bug in httpRead() which
 570           ultimately caused the server to print multiple copies
 571           when it was busy (STR #1184)
 572         - The cupsFile API now uses the O_APPEND option when
 573           opening files in append mode (STR #990)
 574         - The md5.h header and md5_* functions are now officially
 575           private and have been renamed to avoid conflicts with
 576           other implementations with the same name.
 577         - The pdftops filter incorrectly embedded some Type1
 578           fonts (STR #1093)
 579         - The scheduler didn't detect a closed connection in the
 580           middle of an IPP request (STR #1153)
 581         - The scheduler could block trying to read the job status
 582           if there was input pending and the job was cancelled in
 583           the same input cycle (STR #1157)
 584         - The scheduler could crash when deleting a class due to
 585           infinite recursion.
 586         - Updated the Zebra ZPL label printer driver to use the
 587           run-length encoding and support more options.
 588         - Updated serial backend to scan for /dev/ttyC* as well
 589           as /dev/ttyc* for Cyclades serial ports (STR #1049)
 590         - The scheduler could hang reading the job status under
 591           certain circumstances (STR #1068)
 592         - The USB backend termination signal code was inverted
 593           (STR #1046)
 594         - Moved enable and disable commands to sbindir to be
 595           consistent.
 596         - Added new cupsRasterInterpretPPD() function for RIP
 597           filters to setup the raster page header from
 598           PostScript commands in a PPD file.
 599         - The CUPS browsing protocol now offers a "delete" bit
 600           to remove printers as soon as they are deleted on the
 601           server or as soon as the server shuts down gracefully
 602           (STR #793)
 603         - The CUPS_SERVER and ServerName directives (client.conf
 604           and ~/.cupsrc) may now contain names of the form
 605           "server:port" and "/path/to/domain/socket".
 606         - The "cancel -u user" command now works for ordinary
 607           users (STR #751)
 608         - Added test run support to "make test" target (STR #64)
 609         - Added domain socket support (STR #656)
 610         - Added BrowseLocalOptions directive to allow the
 611           administrator to add printer URI options to the browse
 612           URI, e.g. "encryption=required" (STR #732)
 613         - Added BrowseRemoteOptions directive to allow the
 614           administrator to add standard URI options to the
 615           remote printer URI, e.g. "encryption=required" (STR
 616           #732)
 617         - Now put "-I.." compiler option in front of all others
 618           to ensure that local CUPS headers are used before
 619           installed headers (STR #437)
 620         - New cupsLangPrintf() and cupsLangPuts() for localized
 621           interfaces.
 622         - Now support custom attributes and extended options in
 623           PPD files.
 624         - Now provide functions to save PPD files.
 625         - New policy mechanism allows per-operation and
 626           per-printer control over what users and groups are
 627           allowed to do various IPP operations.
 628         - New error policy mechanism to control how aborted
 629           backend errors are handled by the scheduler
 630           (abort-job, retry-job, requeue-job, stop-printer)
 631         - Updated the printer test page with a better color
 632           wheel and a separate grayscale ramp.
 633         - A single backend process is now run to send all print
 634           data for a job.
 635         - Backends and filters can now send and receive
 636           backchannel data over file descriptor 3.
 637         - Updated the raster stream format to support more
 638           user-defined attributes and to do compression of the
 639           page data.