Merge branch 'tizen' of ssh://review.tizen.org:29418/platform/upstream/cups into...

[platform/upstream/cups.git] / CHANGES-1.2.txt

CHANGES-1.2.txt
---------------

CHANGES IN CUPS V1.2.12

        - The PHP cups_print_file() function crashed if the options
          array contained non-string option values (STR #2430)
        - The image/tiff file matching rule incorrectly identified
          some text files as TIFF files (STR #2431)
        - The filter(7) man page incorrectly documented the
          "PAGE: total #-pages" message (STR #2427)
        - PCL text files were mis-identified as HP-GL/2 and
          caused the HP-GL/2 filter to hang (STR #2423)
        - When printing to a queue with user ACLs, the scheduler
          incorrectly returned a quota error instead of a "not
          allowed to print" error (STR #2409)
        - cupsaddsmb could get in a loop if no printer drivers
          were installed (STR #2407)
        - cupsRasterReadHeader() did not byte-swap the header
          properly when compiled with certain versions of GCC.
        - The IPP backend did not send the document-format
          attribute for filtered jobs (STR #2411)
        - Some PPD files could cause a crash in ppdOpen2 (STR
          #2408)
        - The web admin interface incorrectly handled the "share
          printers" and "show remote printers" settings (STR
          #2393)
        - The scheduler's log messages about AuthClass and
          AuthGroupName advised using a replacement directive but
          had the wrong syntax (STR #2400)
        - Updated the PostScript/PJL and HP-GL/2 MIME rules to
          look in the first 4k of the file, not just the first 1k
          (STR #2386)
        - Updated the Italian localization (STR #2382)


CHANGES IN CUPS V1.2.11

        - Fixed the "relaying from" log message (STR #2376)
        - Updated the launchd support on Mac OS X to better
          support reconfiguration.
        - "make distclean" didn't remove all generated files
          (STR #2366)
        - Fixed a bug in the advertisement of classes (STR
          #2373)
        - The IPP backend now stays running until the job is
          actually printed by the remote server; previously
          it would stop monitoring the job if it was held or
          temporarily stopped (STR #2352)
        - PDF files were not always printed using the correct
          orientation (STR #2348)
        - The scheduler could crash if you specified a bad file:
          URI for a printer (STR #2351)
        - The Renew-Subscription operation now returns the
          notify-lease-duration value that was used (STR #2346)
        - The IPP backend sent job options to IPP printers,
          however some printers tried to override the options
          embedded in the PS/PCL stream with those job options
          (STR #2349)
        - ppdLocalize() now also tries a country-specific
          localization for when localizing to a generic locale
          name.
        - The cupstestppd program now allows for partial
          localizations to reduce the size of universal PPD
          files.
        - Chinese PPD files were incorrectly tagged with the
          "cn" locale (should have been "zh")
        - The backends now manage the printer-state-reasons
          attribute more accurately (STR #2345)
        - Java, PHP, Perl, and Python scripts did not work
          properly (STR #2342)
        - The scheduler would take forever to start if the
          maximum number of file descriptors was set to
          "unlimited" (STR #2329)
        - The page-ranges option was incorrectly applied to the
          banner pages (STR #2336)
        - Fixed some GCC compile warnings (STR #2340)
        - The DBUS notification code was broken for older
          versions of DBUS (STR #2327)
        - The IPv6 code did not compile on HP-UX 11.23 (STR
          #2331)
        - PPD constraints did not work properly with custom
          options.
        - Regular PPD options with the name "CustomFoo" did
          not work.
        - The USB backend did not work on NetBSD (STR #2324)
        - The printer-state-reasons attribute was incorrectly
          cleared after a job completed (STR #2323)
        - The scheduler did not set the printer operation policy
          on startup, only on soft reload (STR #2319)
        - The AP_FIRSTPAGE_InputSlot option did not clear any
          ManualFeed setting that was made, which caused problems
          with some PPD files (STR #2318)
        - cupsDoFileRequest() and cupsDoRequest() did not abort
          when getting an error in the response (STR #2315)
        - The scheduler did not schedule jobs properly to remote
          or nested classes (STR #2317)
        - Updated the mime.types and mime.convs headers to warn
          that the files are overwritten when CUPS is installed.
          Local changes should go in local.types or local.convs,
          respectively (STR #2310)
        - The scheduler could get in an infinite loop if a
          printer in an implicit class disappeared (STR #2311)
        - The pstops filter did not handle %%EndFeature comments
          properly (STR #2306)
        - Fixed a problem with the Polish web page printer icons
          (STR #2305)
        - ppdLocalize() now also localizes the cupsICCProfile
          attributes.
        - The scheduler still had a reference to the incorrect
          "notify-recipient" attribute (STR #2307)
        - The "make check" and "make test" subscription tests did
          not set the locale (STR #2307)
        - The "make check" and "make test" subscription tests
          incorrectly used the notify-recipient attribute instead
          of notify-recipient-uri (STR #2307)
        - cupsRasterInterpretPPD() incorrectly limited the
          cupsBorderlessScalingFactor when specified in the
          job options.


CHANGES IN CUPS V1.2.10

        - ppdLocalize() now supports localizing for Japanese
          using the "jp" locale name used by the ppdmerge
          program from the CUPS DDK 1.1.0 (STR #2301)
        - _cupsAdminSetServerSettings() did not support changing
          of top-level directives as designed.
        - The init script path check was broken.
        - CUPS incorrectly used the attribute "notify-recipient"
          instead of "notify-recicpient-uri" in several places
          (STR #2297)
        - Fixed a configure script bug on MirBSD (STR #2294)
        - The pdftops filter did not limit the amount of recursion
          of page sets (STR #2293)
        - Custom page sizes with fractional point sizes did not
          work (STR #2296)
        - The lpoptions command would crash when adding or removing
          options on a system with no printers (STR #2295)


CHANGES IN CUPS V1.2.9

        - The scheduler did not use the default job-sheets
          (banners) for implicit classes (STR #2284)
        - The scheduler could crash when listing complete jobs
          that had been unloaded from memory (STR #2288)
        - The French localization was doubled up (STR #2287)
        - Build system fixes for several platforms (STR #2260,
          STR #2275)
        - The scheduler's openssl certificate generation code was
          broken on some platforms (STR #2282)
        - The scheduler's log rotation check for devices was
          broken (STR #2278)
        - The LPD mini-daemon did not handle the document-format
          option correctly (STR #2266)
        - The pdftops filter ignored the "match" size option in the
          pdftops.conf file (STR #2285)
        - cupstestppd now validates UTF-8 text strings in
          globalized PPD files (STR #2283)
        - The outputorder=reverse option did not work with all
          printers (STR #2279)
        - Classes containing other classes did not always work
          (STR #2255)
        - Printer location and description information was lost
          if the corresponding string contained the "#" character
          (STR #2254)
        - cupsRemoveOption() did not work properly (STR #2264)
        - The USB backend did not work with some USB to parallel
          cables on Mac OS X.
        - The test page did not print the rulers properly on
          large media sizes (STR #2252)
        - The text filter could crash when pretty printing certain
          types of files (STR #2158)


CHANGES IN CUPS V1.2.8

        - Documentation fixes (STR #2141, STR #2157)
        - The HTTP upgrade redirection used by the scheduler did
          not work with Internet Explorer (STR #2235)
        - Members of a class with Unicode names did not appear
          correctly in the web interface (STR #2154)
        - Changing the "Save debugging information" setting in
          the web interface no longer affects the other server
          settings (STR #1993)
        - The scheduler did not choose SSL certificates correctly
          on Mac OS X (STR #2225)
        - The scheduler could get in an infinite loop when
          printing to a remote class (STR #2228)
        - The jobs web page did not have separating space after
          the number of pages column (STR #2230)
        - Added French localization (STR #2221)
        - Updated Spanish localization (STR #2223)
        - Updated Japanese localization (STR #2216)
        - cupsBorderlessScalingFacter was limited to a range of
          0.9 to 1.1, but some printers need larger values (STR
          #2222)
        - Landscape printing of PDF files did not always work
          (STR #2149)
        - Fixed slow USB printing on Minolta printers (STR #2104,
          STR #2219)
        - The ZPL label printer driver could produce stretched
          output (PR #6448)
        - The IPP backend now clears the printer-state-message
          when there are no outstanding errors or warnings (STR
          #2126)
        - The CUPS Java scripting support did not work with
          recent versions of Java due to the use of Sun's private
          Base64 class (STR #2152)
        - The scheduler did not pass HTTP GET form variables to
          custom CGI programs (STR #2173)
        - The lpoptions command now displays the reason why a PPD
          file cannot be found (STR #2184)
        - The scheduler did not accept "none" as a browse
          protocol name (STR #2200)
        - The scheduler still loaded the remote printer cache,
          even when browsing was disabled (STR #2198)
        - The SNMP backend now shows OfficeJet printers with the
          "HP" manufacturer prefix (STR #2151)
        - Web interface HTML cleanup (STR #2153)
        - The parallel backend consumed 100% CPU on FreeBSD due
          to an apparently common parallel port driver bug (STR
          #2161)
        - ippReadIO() incorrectly returned IPP_IDLE when the
          initial IPP message header could not be read (STR
          #2179)
        - cupsRasterInterpretPPD() did not support custom options
          (STR #1960)
        - Collated output produced by the PostScript filter could
          lose some options (STR #2137)
        - job-hold-until with time values for the next day would
          be held for 60 days (STR #2144)
        - Some types of Sun raster files did not print correctly
          (STR #2107)
        - Raw PBM files did not print correctly (STR #2106)
        - The SNMP backend no longer uses IPP with HP printers,
          as some recent firmware versions appear to not work
          (STR #2055)
        - cupsMarkOptions() did not handle the
          multiple-document-handling option (STR #2135)
        - lpstat did not show the local job ID of active printers
          (STR #2125)
        - The backends incorrectly used STATUS:
          media-tray-empty-error messages for out-of-paper
          conditions (STR #2123, STR #2124)
        - cupsGetPPD2() returned the wrong error when the PPD
          file did not exist (STR #2122)
        - cupsDoAuthentication() did not translate the password
          prompt (STR #2121)
        - httpGetLength2() did not handle error messages without
          content correctly (STR #2133)
        - Added support for 32/64-bit libraries on HP-UX Itanium
          systems (STR #2115)
        - Fixed a configure script problem with the 32/64-bit
          library support (STR #2114)
        - The PostScript filter did not properly output document
          setup commands for reversed output (STR #2111)
        - The scheduler did not parse IPv6 netmasks properly (STR
          #2117)


CHANGES IN CUPS V1.2.7

        - Documentation updates (STR #2089)
        - Added an Italian translation (STR #2105)
        - The PostScript filter now rotates the bounding box
          values as needed (STR #2079)
        - The scheduler no longer loads the remote printer cache
          when browsing is disabled (STR #2084)
        - The scheduler no longer writes a new launchd
          configuration file if it doesn't have to (STR #2083)
        - Updated the USB and PAP backends for Mac OS X (STR
          #2086)
        - The scheduler now picks up on changes to IPv6 and DNS
          configuration on Mac OS X (STR #2085)
        - The lpstat program could still hang (STR #2098)
        - Fixed an inefficiency in the SNMP IPP detection code
          (STR #2100)
        - The SSL negotiation code did not implement short
          timeouts (STR #2091)


CHANGES IN CUPS V1.2.6

        - The web interface was not localized on Mac OS X (STR
          #2075)
        - "lpc status" did not show the number of queued jobs for
          disabled queues (STR #2069)
        - The lpstat program could hang (STR #2073)
        - The serial backend did not support the new USB serial
          filenames on Linux (STR #2061)
        - The parallel backend did not support bidirectional I/O
          properly (STR #2056)
        - The network backends now log the numeric address that
          is being used (STR #2046)
        - Fixed a compile error when using libpaper.
        - Fixed a compile error when compiling on Solaris with
          threading enabled (STR #2049, STR #2050)
        - Missing printer-state-changed event for
          printer-state-message updates (STR #2047)


CHANGES IN CUPS V1.2.5

        - Documentation updates (STR #2038)
        - The SNMP backend no longer uses IPP for Epson printers
          (STR #2028)
        - Updated the configure script for Tru64 UNIX 5.1 (STR
          #2033)
        - Tru64 5.1B's getaddrinfo() and getnameinfo() functions
          leak file descriptors (STR #2034)
        - cupsAddDest() didn't add the parent destination's
          options and attributes.
        - ppdConflicts() did not handle custom option
          constraints.
        - Raw printing of gzip'd files did not work (STR #2009)
        - The scheduler no longer preserves default option
          choices when the new PPD no longer provides the old
          default choice (STR #1929)
        - The Linux SCSI backend is now only built if the SCSI
          development headers are installed.
        - USB printing to Minolta printers did not work (STR
          #2019)
        - Windows clients could not monitor the queue status (STR
          #2006)
        - The scheduler didn't log the operation name in the
          access_log file for Create-Job and Print-Job requests.
        - The PostScript filter now separates collated copies
          with any required JCL commands so that JCL-based
          finishing options act on the individual copies and not
          all of the copies as a single document.
        - The PostScript filter now disables duplex printing when
          printing a 1-page document.
        - cups-lpd didn't pass the correct
          job-originating-host-name value (STR #2023)
        - Fixed some speling errors in the German message catalog
          (STR #2012)
        - cupstestppd did not catch PPD files with bad
          UIConstraints values (STR #2016)
        - The USB backend did not work with the current udev-
          created printers if the first printer was disconnected
          (STR #2017)
        - Mirrored and rotated printing did not work with some
          documents (STR #2004)
        - 2-sided printing with banners did not work properly on
          some printers (STR #2018)
        - Updated the raw type rule to handle PJL within the
          first 4k of a print job (STR #1969)
        - Added an Estonian translation (STR #1957)
        - Clarified the documentation for the cupsd.conf @LOCAL
          and @IF(name) allow/deny functionality (STR #1992)
        - The PostScript filters did not escape the Title and For
          comments in the print job header (STR #1988)
        - The scheduler would use 100% CPU if browsing was
          disabled and the cupsd.conf file contained BrowsePoll
          lines (STR #1994)
        - The cupsDirRead() function did not work properly on
          non-POSIX-compliant systems (STR #2001)
        - The cupsFile functions didn't handle read/write errors
          properly (STR #1996)
        - The DBUS support now works with older versions of the
          DBUS library.


CHANGES IN CUPS V1.2.4

        - The --with-printcap configure option did not work (STR
          #1984)
        - The character set reported by cupsLangGet() did not
          always reflect the default character set of a given
          locale (STR #1983)
        - Older Lexmark and Tektronix printers did not work with
          IPP (STR #1980)
        - Failsafe printing did not work (PR #6328)
        - Some web interface redirects did not work (STR #1978)
        - The web interface change settings button could
          introduce a "Port 0" line in cupsd.conf if there was no
          loopback connection available (STR #1979)
        - The web interface change settings and edit
          configuration file buttons would truncate the
          cupsd.conf file (STR #1976)
        - The German web interface used the wrong printer icon
          images (STR #1973)
        - The "All Documents" link in the on-line help was
          missing a trailing slash (STR #1971)
        - The Polish web interface translation used the wrong
          URLs for the job history (STR #1963)
        - The "reprint job" button did not work (STR #1956)
        - The scheduler did not always report printer or job
          events properly (STR #1955)
        - The scheduler always stopped the queue on error,
          regardless of the exit code, if the error policy was
          set to "stop-printer" (STR #1959)
        - ppdEmitJCL() included UTF-8 characters in the JCL job
          name, which caused problems on some printers (STR
          #1959)
        - Fixed a buffering problem that cause high CPU usage
          (STR #1968)
        - The command-line applications did not convert
          command-line strings to UTF-8 as needed (STR #1958)
        - cupsDirRead() incorrectly aborted when reading a
          symbolic link that pointed to a file/directory that did
          not exist (STR #1953)
        - The cupsInterpretRasterPPD() function did not handle
          custom page sizes properly.


CHANGES IN CUPS V1.2.3

        - The scheduler did not send job-state or
          job-config-changed events when a job was held,
          released, or changed (STR #1947)
        - The scheduler now aborts if the configuration file and
          directory checks fail (STR #1941)
        - Fixed a problem with ippPort() not using the port
          number that was set via the client.conf file or
          CUPS_SERVER environment variable (STR #1945)
        - HTTP headers were not buffered (STR #1899)
        - Some IPP printers (HP) did not like UTF-8 job names
          (STR #1837)
        - The CUPS desktop icon is now localized for Polish (STR
          #1920)
        - Printer options were not always honored when printing
          from Windows clients (STR #1839)
        - The openssl command would lock up the scheduler when
          generating an encryption certificate on some platforms
          due to a lack of entropy for the random number
          generator (STR #1876)
        - The web admin page did not recognize that "Listen 631"
          enabled remote access (STR #1908)
        - The web admin page did not check whether changes were
          made to the Basic Server Settings check boxes (STR
          #1908)
        - The IPP backend could generate N*N copies in certain
          edge cases.
        - The scheduler did not restore remote printers properly
          when BrowseShortNames was enabled (STR #1893)
        - Polling did not handle changes to the network
          environment on Mac OS X (STR #1896)
        - The "make test" subscription tests used invalid
          notify-recipient-uri values (STR #1910)
        - Printers could be left in an undefined state on system
          sleep (STR #1905)
        - The Berkeley and System V commands did not always use
          the expected character set (STR #1915)
        - Remote printing fixes (STR #1881)
        - The cupstestppd utility did not validate translation
          strings for custom options properly.
        - Multi-language PPD files were not properly localized in
          the web interface (STR #1913)
        - The admin page's simple settings options did not check
          for local domain socket or IPv6 addresses and did not
          use "localhost" as the listen address.
        - An empty BrowseProtocols, BrowseLocalProtocols, or
          BrowseRemoteProtocols line would crash the scheduler
          instead of disabling the corresponding browsing options.
        - The scheduler now logs IPP operation status as debug
          messages instead of info or error.
        - cupsFileRewind() didn't clear the end-of-file state.
        - cupstestppd didn't report the actual misspelling of the
          1284DeviceID attribute (STR #1849) 
        - BrowseRelay didn't work on Debian (STR #1887)
        - configure --without-languages didn't work (STR #1879)
        - Manually added remote printers did not work (STR #1881)
        - The <cups/backend.h> header was not installed.
        - Updated the build files for Autoconf 2.60 (STR #1853)
        - The scheduler incorrectly terminated the polling
          processes after receiving a partial log line.
        - The cups-lpd mini-daemon reported "No printer-state
          attribute found" errors when reporting the queue status
          (PR #6250, STR #1821)
        - SNMP backend improvements (STR #1737, STR #1742, STR
          #1790, STR #1835, STR #1880)
        - The scheduler erroneously reported an error with the
          CGI pipe (STR #1860)
        - Fixed HP-UX compile problems (STR #1858, STR #1859)
        - cupstestppd crashed with some PPD files (STR #1864)
        - The <cups/dir.h> and <cups/file.h> header files did not
          work with C++.


CHANGES IN CUPS V1.2.2

        - Documentation updates (STR #1765, STR #1780)
        - CUPS didn't know about alternate character set names
          for Asian text (STR #1819)
        - The lpoptions -o and -r options did not work unless you
          specified a printer.
        - The lpoptions command incorrectly allowed users to set
          printer attributes like printer-type (STR #1791)
        - httpWait() did not flush the write buffer, causing "bad
          request" errors when communicating with CUPS 1.1.x
          servers (STR #1717)
        - Polling did not sanitize the printer description,
          location, or make and model strings like broadcasts
          did.
        - Polled printers did not show the server's default
          job-sheets option value.
        - The Samba password prompt was not properly localized
          (STR #1814)
        - Added a German translation (STR #1842)
        - The scheduler now creates self-signed SSL certficates
          automatically when using OpenSSL and CDSA for
          encryption, just as for GNU TLS.
        - The SNMP backend sporatically reported some printers as
          "unknown" (STR #1774)
        - The scheduler now forces BrowseTimeout to be at least
          twice the BrowseInterval value and non-zero to avoid
          common configuration errors.
        - The scheduler incorrectly returned printer URIs of the
          form "ipp://server/printers/classname" for classes (STR
          #1813)
        - Updated Japanese localization (STR #1805)
        - The scheduler's SSL certificate/key directory was not
          created on installation (STR #1788)
        - Added a mailto.conf man page and help page (STR #1754)
        - The parallel and USB backends no longer wait for the
          printer to go on-line - this caused problems with
          certain printers that don't follow with the IEEE-1284
          standard (STR #1738)
        - The scheduler could crash on a reload when implicit
          classes were present (STR #1828)
        - The IPP backend incorrectly used the CUPS_ENCRYPTION
          environment variable to determine the default
          encryption mode when printing (STR #1820)
        - USB printing did not work on Solaris (STR #1756)
        - The scheduler sorted job priorities in the wrong order
          (STR #1811)
        - The scheduler did not automatically restart notifiers
          that exited or crashed (STR #1793)
        - IPv6 support did not work on NetBSD (STR #1834)
        - The EPM packaging file did not work (STR #1804)
        - The scheduler used up the CPU if BrowseRemoteProtocols
          was empty (STR #1792)
        - Custom page sizes did not work (STR #1787)
        - The SNMP backend could crash on some systems when SNMP
          logging was enabled (STR #1789)
        - Browsing could produce some funny printer names when
          ServerName was set to an IP address (STR #1799)
        - Fixed the log message for BrowseRelay (STR #1798)
        - Fixes to allow CUPS to compile on MirBSD (STR #1796)
        - The scheduler incorrectly set the FINAL_CONTENT_TYPE
          environment variable (STR #1795)
        - The pdftops filter incorrectly embedded a "produced by"
          comment, causing PDF printing not to work on some
          operating systems (STR #1801)
        - Sending raw jobs from a client system could cause the
          client's scheduler to eventually crash (STR #1786)
        - The scheduler now checks that the notifier exists prior
          to accepting a new subscription request.
        - The scheduler now reports the supported
          notify-recipient schemes based on the contents of the
          ServerBin/notifier directory.
        - Event notifications did not include the
          notify-sequence-number or other required attributes
          (STR #1747)
        - Allow/Deny addresses of the form "11.22.33.*" did not
          work on Linux (STR #1769)
        - cupsGetPPD() did not work if the scheduler was only
          listening on a domain socket (STR #1766)
        - The scheduler could crash advertising a class (STR
          #1768)
        - The scheduler could crash if the default printer was
          deleted (STR #1776)
        - Added a new default CUPS raster format (v3) which does
          not compress the raster stream in order to provide the
          same cupsRasterReadPixels() and cupsRasterWritePixels()
          performance as CUPS 1.1.x.
        - The cupsaddsmb man page listed the wrong files for the
          CUPS driver.
        - Some configure --with options did not work (STR #1746)
        - "Allow @IF(name)" didn't work if "name" wasn't the
          first network interface (STR #1758)
        - The lpstat command did not use the correct character
          set when reporting the date and time (STR #1751)
        - The cupsaddsmb command and web interface did not update
          the Windows PPD files properly, resulting in corrupt
          PPD files for the Windows client to use (STR #1750)
        - The cupsd.conf man page didn't describe the Listen
          domain socket syntax (STR #1753)
        - The scheduler no longer tries to support more than
          FD_SETSIZE file descriptors.
        - CDSA (encryption) support fixes for MacOS X.
        - The lppasswd program needs to be setuid to root to
          create and update the /etc/cups/passwd.md5 file (STR
          #1735)
        - 32/64-bit library installation was broken (STR #1741)
        - The USB backend now reports a "no such device" error
          when using the old filename-based USB URIs instead of
          the "success" error.
        - Increased the HTTP and IPP read timeouts to 10 seconds,
          as 1 second was too short on congested networks (STR
          #1719)
        - The SNMP backend now uses the device description over
          the printer-make-and-model attribute when the attribute
          contains a generic name (STR #1728)
        - Fixed another file descriptor leak when printing raw
          files (STR #1736)
        - Raw queues were not shared via LDAP (STR #1739)
        - The pstops filter didn't always embed PageSetup
          commands from the PPD file (STR #1740)
        - "make install" didn't work if you disabled all of the
          localizations.
        - The scheduler didn't always choose the least costly
          filter.
        - Fixed parsing of IPv6 addresses in Allow, Deny,
          BrowseAllow, BrowseDeny, and BrowseRelay directives
          (STR #1713)
        - Printers that were shared via LDAP did not get added to
          the LDAP server properly (STR #1733)
        - LDAP browsing would crash the scheduler if a required
          value was missing (STR #1731)
        - Special cases for the "localhost" hostname did not
          work, causing printing to not work when the /etc/hosts
          file did not contain a localhost entry (STR #1723)
        - Updated the Spanish translation (STR #1720, STR #1770)
        - Reverse-order page output was broken when N-up or
          landscape orientations were used (STR #1725)
        - The parallel, serial, socket, and USB backends needed
          print data before they would report back-channel data,
          causing problems with several new drivers (STR #1724)


CHANGES IN CUPS V1.2.1

        - "lprm -h hostname" did not work (STR #1800)
        - The web interface did not handle reloads properly for
          MSIE (STR #1716)
        - The configure script no longer adds linker rpath
          options when they are unnecessary.
        - The scheduler could crash printing a debug message on
          Solaris (STR #1714)
        - The --enable-32bit and --enable-64bit configure options
          did not always work.
        - The password prompt showed the domain socket address
          instead of "localhost" for local authentication (STR
          #1706)
        - The web interface filtered the list of printers even if
          the user wasn't logged in (STR #1700)
        - The IPP backend did not work reliably with some Xerox
          printers (STR #1704)
        - Trailing banners were not added when printing a single
          file (STR #1698)
        - The web interface support programs crashed on Solaris
          (STR #1699)
        - cupstestppd incorrectly reported problems with
          *1284DeviceID attributes (STR #1710)
        - Browsing could get disabled after a restart (STR #1670)
        - Custom page sizes were not parsed properly (STR #1709)
        - The -U option wasn't supported by lpadmin (STR #1702)
        - The -u option didn't work with lpadmin (STR #1703)
        - The scheduler did not create non-blocking back-channel
          pipes, which caused problems when the printer driver
          did not read the back-channel data (STR #1705)
        - The scheduler no longer uses chunking in responses to
          clients - this caused problems with older versions of
          CUPS like 1.1.17 (PR #6143)
        - Automatic raw printing was broken (STR #1667)
        - 6-up printing was broken (STR #1697)
        - The pstops filter did not disable CTRL-D processing on
          the printer/RIP.
        - ppdOpen*() did not load custom options properly (STR
          #1680)
        - "Set Printer Options" in the web interface did not
          update the DefaultImageableArea or
          DefaultPaperDimension attributes in the PPD file (STR
          #1689)
        - Fixed compile errors (STR #1682, STR #1684, STR #1685,
          STR #1690)
        - The lpstat command displayed the wrong error message
          for a missing destination (STR #1683)
        - Revised and completed the Polish translation (STR
          #1669)
        - Stopped jobs did not show up in the list of active jobs
          (STR #1676)
        - The configure script did not use the GNU TLS
          "libgnutls-config" script to find the proper compiler
          and linker options.
        - The imagetoraster filter did not correctly generate
          several 1, 2, and 4-bit color modes.
        - cupsRasterWritePixels() could lose track of the current
          output row.
        - cupsRasterReadPixels() did not automatically swap
          12/16-bit chunked pixel data.
        - Moved the private _cups_raster_s structure out of the
          public header.
        - Updated the CUPS raster format specification to include
          encoding rules and colorspace definitions.
        - The Zebra PPD files had the wrong PostScript code for
          the "default" option choices.
        - The imagetoraster filter did not generate correct CIE
          XYZ or Lab color data.
        - The cups-config script did not work when invoked from a
          source directory (STR #1673)
        - The SNMP backend did not compile on systems that used
          the getifaddrs emulation functions (STR #1668)


CHANGES IN CUPS V1.2.0

        - Documentation updates (STR #1618, STR #1620, STR #1622,
          STR #1637)
        - Static file copy buffers reduced from 64k to 32k to
          work around bogus MallocDebug library assumptions (STR
          #1660)
        - The scheduler did not decode the backend exit code
          properly (STR #1648)
        - The MacOS X USB backend did not report the 1284 device ID,
          nor did it fix device IDs returned by HP printers.
        - The scheduler started more slowly than 1.1.x with large
          numbers of printers (STR #1653)
        - cupsRasterInterpretPPD() didn't support the
          cupsPreferredBitsPerColor attribute, and imagetoraster
          didn't use the new API.
        - The "make test" script did not create all of the necessary
          subdirectories for testing (STR #1638)
        - The scheduler did not prevent rotation of logs
          redirected to /dev/null (STR #1651)
        - "make test" did not include the SNMP backend in the
          test environment (STR #1625)
        - The EPM packaging files did not work (STR #1621)
        - "Use Default Configuration" inserted a broken
          configuration file (STR #1624)
        - Redirects in the web interface did not always preserve
          the encrypted status of a connection (STR #1603)
        - Added the Apple "pap" backend.
        - Added CUPS library to CUPS Image shared library
          linkage to support Linux --as-needed linker option
          (STR #1606)
        - Fixed support for --enable-pie (STR #1609)
        - The pdftops filter did not validate the length of the
          encryption key (STR #1608)
        - Updated the Polish localization.
        - "Encryption Required" in the cupsd.conf file now only
          requires encryption when the connection is not over the
          loopback interface or domain socket.
        - Printer names containing "+" were not quoted properly in
          the web interface (STR #1600)
        - The SNMP backend now reports the make and model in the
          information string so that the auto-generated printer
          name is more useful than just an IP address.


CHANGES IN CUPS V1.2rc3

        - The cups-lpd program always did reverse lookups on the
          client address, which could be a performance problem.
          Added a "-n" option to disable lookups.
        - When configured with SSL support, require encryption by
          default when displaying the /admin location (STR #1592)
        - The next job ID was not computed correctly if the job
          cache file got out of sync with the spool directory
          (STR #1582)
        - The PNG image handling code used deprecated functions
          from libpng (STR #1587)
        - Added a Polish translation (STR #1584, STR #1586)
        - More changes to the scheduler to improve battery life
          on portable devices (STR #1583)
        - Changed the default log level for status messages back
          to "DEBUG" to be consistent with CUPS 1.1.x (STR #1579)
        - The error string was not set properly when
          cupsDoFileRequest() was given the name of a directory
          (STR #1578)
        - Fixed handling of job-hold-until (STR #1581)
        - Added explicit notes to the cupsaddsmb man page
          explaining that the driver filenames are case-sensitive
          under UNIX and that they must be all lowercase (Windows
          2000) or all UPPERCASE (Windows 95/98/Me) to work (STR
          #1568)
        - The USB backend incorrectly split the manufacturer name
          if it contained spaces (STR #1566)
        - The scheduler would hang when listing PPD files for a
          manufacturer whose name contained spaces (STR #1567)
        - Added the SNMP backend for network printer discovery
          (STR #1555)
        - cupstestppd now fails PPD files with 1284DeviceId
          instead of 1284DeviceID, and cups-driverd uses a
          case-insensitive comparison when looking for it (STR
          #1573)
        - cupsDoFileRequest() and cupsDoRequest() now work
          properly with non-blocking HTTP connections.
        - Added Swedish translation (STR #1569)
        - "make install" now installs the MIME files with world
          read permissions (STR #1565)
        - More CDSA encryption support fixes (STR #1563)
        - Updated the default mime.types file to support printing
          of files that do not have a locally-recognized MIME
          media type to raw or System V queues.
        - Updated the serial port detection code on Linux (STR
          #1562)
        - Added some more error checking to httpGetHostname()
          (STR #1561)
        - The title of some administration pages was not
          localized (STR #1548)
        - The edit-config.tmpl file was not generated or
          installed for the Spanish or Japanese localizations
          (STR #1547)
        - The mimeDelete() function freed the types before the
          filters, but the filters needed the type data (STR #1558)
        - The scheduler didn't keep track of the status pipes
          properly, leading to a bad select() for multi-file jobs
          (STR #1559)
        - The cupstestdsc program didn't validate the ordinal
          page number value for %%Page: comments.


CHANGES IN CUPS V1.2rc2

        - The scheduler was not always using the string pool,
          causing random crashes.
        - The lpmove and the web interface's Move Job button did
          not work with stopped jobs (STR #1534)
        - The PostScript filter did not handle the page-set
          option properly with number-up printing (STR #1543)
        - The scheduler now only warns about unsupported ACLs
          once (STR #1532)
        - The "fitplot" option did not work with output from
          Mozilla (STR #1542)
        - The imagetops filter did not work with Level 2 or 3
          printers (STR #1533)
        - The scheduler now recognizes PostScript files with PJL
          commands that do not include an ENTER LANGUAGE command.
        - Added --with-printcap configure option.
        - 64-bit SSL fixes for MacOS X.
        - The scheduler didn't send some printer state change
          events.
        - The scheduler didn't send jobs to busy remote printers.
        - Fixed some problems with the launchd support.
        - Added new USB printer backend for MacOS X.
        - The PostScript filter now handles files that start with
          an incomplete PJL header (PR #6076)
        - The web interface language selection code did not try
          the generic language localization (STR #1531)
        - The language cache, string pool, and transcoding caches
          are now process global instead of per-thread to avoid
          problems with GNOME and to allow for data sharing
          between threads (STR #1530)
        - Fixed a CUPS 1.1.x compatibility bug (STR #1528)
        - The web interface redirection after certain printer
          administration tasks was broken (STR #1516)
        - Web interface authorization could get stuck (STR #1512)
        - Localization updates (STR #1513, STR #1518, STR #1520)
        - The pstops filter didn't work with some files (STR
          #1523)
        - "./configure --enable-static" didn't work (STR #1522)
        - The scheduler was not using the configured default
          Group (STR #1521)
        - The web interface still did not show the localized time
          and date for some locales and systems (STR #1509)
        - httpAddrGetList() would crash on systems without
          getaddrinfo().
        - Socket URIs without a trailing slash would cause the
          port number to not be accepted (STR #1519)
        - Local raw and System V printers were not advertised as
          such for printer browsing (STR #1502)
        - The RPM spec file incorrectly put duplicate copies of
          the Japanese and Spanish web interface templates in the
          main cups package (STR #1517)
        - cupsSetDests() did not explicitly set the permissions
          of the /etc/cups/lpoptions file (STR #1508)
        - The lpq command crashed with the -h option (STR #1515)


CHANGES IN CUPS V1.2rc1

        - Documentation updates (STR #1497, STR #1498)
        - The scheduler now redirects browsers to https: URLs
          when encryption is required.
        - The scheduler would crash when printing with a banner
          (STR #1500)
        - cups-driverd did not use the LanguageEncoding attribute
          in PPD files to convert the NickName to UTF-8 (STR
          #1503)
        - The lpadmin command could not set the
          printer-error-policy attribute (STR #1504)
        - The web interface did not show the time and date in the
          correct format for the locale (STR #1505)
        - CUPS no longer accepts print jobs if a printer does not
          support the file format (STR #1501)
        - Cleaned up the PostScript filter (pstops) so that it
          properly supports %%IncludeFeature and page scaling
          (STR #1453)
        - Fixed the cupsFileRewind() and cupsFileSeek() functions
          to work properly with uncompressed files.
        - Added cupsFileGetLine(), cupsFileStderr(),
          cupsFileStdin(), and cupsFileStdout() functions to the
          CUPS library.
        - Added a new cupstestdsc program to test the DSC
          conformance of PostScript files.
        - Added KDE/GNOME icons and a Manage Printers menu item.
        - Added --enable-image and --enable-pdftops configure
          options to control whether the image and PDF filters
          are built and installed (default = yes for all
          platforms but MacOS X)
        - Fixed a minor memory leak in the PPD API.
        - Fixed transcoding issues (STR #1493)
        - The scheduler now enforces a minimum job cost of 100
          when doing FilterLimit checks.
        - The scheduler would leak file descriptors when printing
          to raw queues (STR #1491)
        - The IPv6 support did not compile on Tru64 UNIX (STR
          #1488)
        - ppdOpen2() now converts the NickName and all UI text to
          UTF-8 (STR #1475)
        - The Set Allowed Users web page did not work (STR #1486)
        - When the default policy was not set or set to a non-
          existing policy, the scheduler did not set the default
          policy name to "default" (STR #1484)
        - The Zebra CPCL driver did not use the correct righthand
          margin for the 4" wide label sizes.
        - Fixed a problem with the parsing of fractional real
          numbers in PPD files.
        - Added Spanish localization files (STR #1480)
        - Fixed localization of a few scheduler messages (STR
          #1478)
        - Fixed support for HEAD requests in the scheduler (STR
          #1481)


CHANGES IN CUPS V1.2b2

        - Updated the CUPS design description.
        - Added --enable-32bit and --enable-64bit configure
          options to allow building of separate 32/64-bit
          libraries on systems that support both environments
          (STR #1472)
        - Various compiler warning fixes.
        - Fixes for Solaris 10 builds against old GNU TLS and
          LDAP libraries.
        - Added a cupsArrayUserData() function to retrieve the
          user data pointer for an array (useful for typing
          arrays)
        - The ppdEmitString() function did not compute the
          required buffer size properly, leading to dropped
          characters on the end of the printer commands in pstops
          and imagetops (STR #1470)


CHANGES IN CUPS V1.2b1

        - The serial backend now supports Equinox 8-port serial
          hubs (STR #526)
        - The IPP backend now supports a compression option to
          compress print files as they are sent to the remote
          server (STR #956)
        - The CUPS browse protocol now supports passing of
          default options and browse timeout values from the
          server to the clients (STR #800)
        - Implicit classes that timed out could cause the
          scheduler to crash (STR #1439)
        - Added DragonFly support in local device backends (STR
          #1362)
        - Added LDAP printer browsing support (STR #338)
        - Added official support for printer maintenance commands
          via the CUPS Command file format and hooks in the
          printer-type and web interfaces (STR #932)
        - The HP-GL/2 filter could get in an infinite loop trying
          to convert HP-PCL files (STR #1415)
        - CUPS now implements the HTTP/1.1 Expect header (STR
          #1407)
        - Options in PPD files are no longer automatically put in
          an "Extra" group; rather, all options that are not
          inside an Open/CloseGroup will be placed in the
          "General" group (STR #1385)
        - The scheduler now creates a job-uuid attribute that
          uniquely identifies a job on a network (STR #1410)
        - The init script now unsets the TMPDIR environment
          variable to prevent user temporary directories from
          being used by cupsd accidentally (STR #1424)
        - Added support for launchd on MacOS X.
        - Added support for notify_post on MacOS X.
        - Added support for DBUS on Linux.
        - All of the Berkeley (except for lpc) and System V
          commands now support specification of user, host, and
          port (STR #1028, STR #1029, STR #1087)
        - The lpmove command now allows you to move all jobs for
          a given queue (STR #56)
        - The web interface now supports moving of a job or jobs
          to another queue (STR #56)
        - The web interface now provides searching, paging, and
          changing of the sort/display order of classes, jobs,
          and printers.
        - cupsaddsmb now accepts a password on the command-line
          and supports passwords with special characters (STR
          #822, STR #1236)
        - ppdLoad*() no longer tries to "fix" bad characters in
          UI text (STR #1101)
        - Printer names can now (reliably) contain Unicode
          characters (STR #896)
        - The lpstat command now shows the time and date of the
          last printer state change instead of the hardcoded "Jan
          01 00:00" (STR #659)
        - The scheduler now adds a job-actual-printer-uri
          attribute to job objects when printing to a class (STR
          #116)
        - The scheduler now logs log file open errors to the
          system log (STR #1289)
        - The scheduler now sets the job-originating-user-name to
          the authenticated username, if available (STR #1318)
        - The scheduler now only updates the permissions of SSL
          keys and certificates when they are under the
          ServerRoot directory (STR #1324)
        - The rastertodymo driver has been renamed to
          rastertolabel (a symlink is installed so that existing
          queues continue to work) and now also supports Zebra's
          CPCL language.
        - The lpstat command could show the wrong active job for
          a printer (STR #1301)
        - Fixed a potential crash problem in the scheduler when
          aborting a CGI program (STR #1290)
        - Added a "cancel all jobs" button to the class and
          printer web interfaces (STR #1140)
        - The add-printer web page now shows the
          set-printer-options page after the printer has been
          added (STR #690)
        - The classes web page now provides links to each of the
          member printers (STR #307)
        - CUPS now handles HTTP request/response lines up to 32k
          in length; this is mainly for better cookie support
          (STR #1274)
        - Added support for the Apache PassEnv and SetEnv
          directives to cupsd.conf (STR #853)
        - Added large file (64-bit) support (STR #541)
        - Fixed a performance issue with the ippReadIO()
          implementation (STR #1284)
        - Fixed a performance issue with the scheduler's implicit
          class implementation (STR #1283)
        - The pdftops filter now adds the Title and Creator
          fields from the PDF file to the PostScript document
          comments section (STR #539, STR #830)
        - Added a new cups_array_t and cupsArray*() functions to
          the CUPS API to support sorted lists of data.
        - Made the CUPS API library thread-safe (STR #1276)
        - Added "media" option support for EFI EFMediaType option
          (STR #902)
        - Added write buffering to the HTTP code to improve
          performance (STR #547)
        - The scheduler now uses the attributes-natural-language
          attribute to localize banner pages (STR #386)
        - The scheduler now returns the address that was used to
          connect to it (STR #1076)
        - Fixed a problem with N-up printing and OpenOffice (STR
          #576)
        - Added support for the GCC position independent
          executable options (STR #1209)
        - Added new BrowseLocalProtocols and
          BrowseRemoteProtocols directives to cupsd.conf,
          allowing for different browse protocols for local and
          remote printers (STR #877)
        - PPD files can now contain strings up to 256k in length
          (STR #1215)
        - The pstops filter now supports the IncludeFeature DSC
          comment (STR #1212)
        - The pstops filter now disables the setpagedevice
          procedure when doing N-up printing (STR #1161)
        - The serial backend now supports "stop=1", "stop=2",
          "parity=space", and "parity=mark" options (STR #1155)
        - "make install" no longer overwrites an existing PAM
          configuration file (STR #1064)
        - The scheduler now closes all files on startup when run
          in daemon mode (STR #1009)
        - Added a new RGBW colorspace to the CUPS raster format
          (STR #1071)
        - The pdftops filter now sets the page size based on the
          media box when not scaling the output (STR #912)
        - The pdftops filter now supports masked images (STR
          #281)
        - The pdftops filter produced large output when rendering
          PDF files containing lot of repeated images (STR #327)
        - The pdftops filter now minimizes print processing of
          PDF files when using the page-ranges option (STR #273)
        - Updated pdftops filter to Xpdf 3.01.
        - Added new cupsBackchannelRead() and
          cupsBackchannelWrite() functions, as well as
          backchannel support to the parallel, serial, socket,
          and USB backends (STR #1252)
        - The parallel and USB backends now treat a "no space
          available" error as an out-of-paper condition (STR
          #1225)
        - The "lpc" command now supports the "status all" command
          (STR #1004)
        - ippReadIO() did not read collections properly (STR
          #1249)
        - The "make test" script now creates the test files in
          "/tmp/cups-$USER" instead of "/tmp/$USER" (STR #981)
        - All backends now abort on error when printing a job to
          a class - this allows the next printer in the class to
          print the job (STR #1084)
        - The scheduler now verifies that a printer supports
          Letter or A4 media sizes before setting them as the
          initial default (STR #1250)
        - The cupstestppd program now flags bad Resolution
          options (STR #1269)
        - The USB backend now retries printing when the printer
          is disconnected or turned off (STR #1267)
        - Added new httpGetHostname() function to CUPS API, and
          use it instead of gethostname() so that the web
          interface will work correctly on systems whose hostname
          is not the FQDN (STR #1266)
        - The scheduler now stops printers if the backend for the
          queue is missing on startup (STR #1265)
        - The configure script now supports "--disable-library"
          to disable particular image file format support
          libraries, even if they are available on the build
          system (STR #1248)
        - The IPP backend did not always report on the total
          number of pages that were printed (STR #1251)
        - The lpstat program could display garbage date and time
          values for locales whose date format exceeded 31
          characters (STR #1263)
        - The cupstestppd program would segfault when testing
          certain broken PPD files (STR #1268)
        - Dramatically reduced the overhead of implicit classes.
        - Added new cupsDir*() functions to CUPS API.
        - Printers can now be published individually for sharing.
        - Fixed a bug in the scheduler's startup signalling code
          which caused cupsd to send the SIGUSR1 signal to the
          init process instead of the original parent process
          (STR #1258)
        - Added new on-line help CGI to web interface to provide
          searchable help.
        - Devices are now tracked dynamically, with each query
          doing a new device scan.  This eliminates a previous
          startup delay caused by slow backends and allows new
          printers to be seen without restarting the server,
          however it limits the amount of device URI checking
          that can be done (basically now the scheduler only
          requires a URI with a method that is a listed backend)
        - Added new printer auto-detection, server configuration,
          and log file viewing to the administration web page.
        - Added new "set allowed users" web interface to set the
          list of allowed users for a printer or class.
        - The scheduler, command-line, and web interfaces now
          limit the list of printers and classes to those
          accessible by a user.
        - cupsMarkOptions() now handles more non-standard
          duplexing options and choices (STR #915)
        - cups-lpd now honors remote banner requests with the
          "standard" banner whenever a printer does not have one
          defined (STR #1220)
        - The scheduler's denial-of-service checks did not work
          properly with IPv6 addresses (STR #1134)
        - The lp and lpr commands did not error out properly when
          they were unable to write to a temporary file (STR
          #1129)
        - The pstops filter did not handle Adobe-specific
          comments in Windows NT driver output (STR #1085)
        - "lpstat -l -p" incorrectly reported the printer
          interface (STR #936)
        - The web interface now operates exclusively with the
          UTF-8 encoding, and sends the appropriate character set
          and header information to the web browser (STR #919,
          STR #1007)
        - Added a "set allowed users" interface to the web
          interface so that you can set the list of allowed or
          denied users/groups for a printer or class.
        - Disallow the "#" character in printer names, since it
          has special meaning in the shell, config files, and in
          URIs (STR #917, STR #1202)
        - Added a new application/x-csource MIME type, and
          support for it to the texttops filter so that you can
          pretty print plain text files without the C/C++
          keywords being highlighted.
        - The pdftops filter did not compile with GCC 4.0 (STR
          #1226)
        - The texttops filter did not highlight preprocessor
          directives followed by a tab properly.
        - HP PJL output now uses both JOB DISPLAY and RDYMSG
          commands to show the current job on the printer's
          display (STR #1218)
        - Local authentication certificates are now stored in
          /var/run/cups/certs by default instead of
          /etc/cups/certs (STR #1211)
        - Backends now use "&" to separate options in device
          URIs; "+" is still recognized but is deprecated (STR
          #842)
        - The USB backend no longer supports the usb:/dev/foo
          format on systems that support device ID queries.
        - Forced classification markings did not work when the
          job-sheets parameters were "none,none".
        - "lpstat -l -p" incorrectly showed all users as allowed,
          even if the queue was restricted to certain users (STR
          #801)
        - The scheduler now automatically detects SSL/TLS clients
          without using the SSLPort/SSLListen directives.
        - The CUPS API and scheduler no longer support SSLv2-
          encrypted connections.
        - Updated the cupsaddsmb utility to correctly export the
          CUPS driver for Windows.
        - Fixed a signal-handling bug in httpRead() which
          ultimately caused the server to print multiple copies
          when it was busy (STR #1184)
        - The cupsFile API now uses the O_APPEND option when
          opening files in append mode (STR #990)
        - The md5.h header and md5_* functions are now officially
          private and have been renamed to avoid conflicts with
          other implementations with the same name.
        - The pdftops filter incorrectly embedded some Type1
          fonts (STR #1093)
        - The scheduler didn't detect a closed connection in the
          middle of an IPP request (STR #1153)
        - The scheduler could block trying to read the job status
          if there was input pending and the job was cancelled in
          the same input cycle (STR #1157)
        - The scheduler could crash when deleting a class due to
          infinite recursion.
        - Updated the Zebra ZPL label printer driver to use the
          run-length encoding and support more options.
        - Updated serial backend to scan for /dev/ttyC* as well
          as /dev/ttyc* for Cyclades serial ports (STR #1049)
        - The scheduler could hang reading the job status under
          certain circumstances (STR #1068)
        - The USB backend termination signal code was inverted
          (STR #1046)
        - Moved enable and disable commands to sbindir to be
          consistent.
        - Added new cupsRasterInterpretPPD() function for RIP
          filters to setup the raster page header from
          PostScript commands in a PPD file.
        - The CUPS browsing protocol now offers a "delete" bit
          to remove printers as soon as they are deleted on the
          server or as soon as the server shuts down gracefully
          (STR #793)
        - The CUPS_SERVER and ServerName directives (client.conf
          and ~/.cupsrc) may now contain names of the form
          "server:port" and "/path/to/domain/socket".
        - The "cancel -u user" command now works for ordinary
          users (STR #751)
        - Added test run support to "make test" target (STR #64)
        - Added domain socket support (STR #656)
        - Added BrowseLocalOptions directive to allow the
          administrator to add printer URI options to the browse
          URI, e.g. "encryption=required" (STR #732)
        - Added BrowseRemoteOptions directive to allow the
          administrator to add standard URI options to the
          remote printer URI, e.g. "encryption=required" (STR
          #732)
        - Now put "-I.." compiler option in front of all others
          to ensure that local CUPS headers are used before
          installed headers (STR #437)
        - New cupsLangPrintf() and cupsLangPuts() for localized
          interfaces.
        - Now support custom attributes and extended options in
          PPD files.
        - Now provide functions to save PPD files.
        - New policy mechanism allows per-operation and
          per-printer control over what users and groups are
          allowed to do various IPP operations.
        - New error policy mechanism to control how aborted
          backend errors are handled by the scheduler
          (abort-job, retry-job, requeue-job, stop-printer)
        - Updated the printer test page with a better color
          wheel and a separate grayscale ramp.
        - A single backend process is now run to send all print
          data for a job.
        - Backends and filters can now send and receive
          backchannel data over file descriptor 3.
        - Updated the raster stream format to support more
          user-defined attributes and to do compression of the
          page data.