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CUPS 1.4 Documentation

List of CUPS 1.4 Documents

Release Notes

CUPS 1.4.8 (July 25, 2011)

The scheduler would delete job data files when restarted (STR #3880)
The network backends could crash if a printer returned a value of 0 for the maximum capacity for a supply (STR #3875)

CUPS 1.4.7 (June 27, 2011)

Documentation changes (STR #3710, STR #3720, STR #3745, STR #3750, STR #3757, STR #3758, STR #3782, STR #3826, STR #3829, STR #3837)
Web interface fixes (STR #3412, STR #3345, STR #3455, STR #3707, STR #3755, STR #3769, STR #3783)
Configure script fixes (STR #3659, STR #3691)
Compilation fixes (STR #3718, STR #3771, STR #3774)
The imageto* filters could crash with bad GIF files (STR #3867)
The scheduler might leave old job data files in the spool directory (STR #3795)
CUPS did not work with locales using the ASCII character set (STR #3832)
httpAddrString() did not return a URI-style IPv6 numeric address (STR #3814)
Fixed an issue when reading compressed CUPS raster streams (STR #3812)
Fixed an issue with PostScript printer auto-configuration (STR #3443)
Fixed some compatibility issues with the libusb-based USB backend (STR #3799)
The network backends no longer try to collect SNMP supply and status information for raw queues (STR #3809)
The DBUS notifier did not report job state changes (STR #3805)
The scheduler did not always report that the "normal" print-quality value was supported (STR #3803)
The gziptoany filter did not report the correct error if it was unable to write the uncompressed document to the next filter or backend in the chain (STR #3797)
The Epson and Oki 9-pin drivers had a bad resolution option (STR #3798)
The scheduler did not always register the correct default ICC profile on Mac OS X.
The scheduler did not use the job owner when authorizing access for the CUPS-Get-Document operation, preventing non-admins from accessing their own jobs.
CUPS did not work with some printers that incorrectly implemented the HTTP/1.1 standard (STR #3778, STR #3791)
The scheduler did not retry fax jobs properly.
The scheduler now recognizes an empty cupsCommands PPD keyword as meaning that CUPS commands are not supported for a printer (STR #3773)
Fixed a crash bug in the scheduler when the application/octet-stream MIME type was not defined (STR #3690)
Polled printers were advertised more slowly than necessary (STR #3574)
cupsResolveConflicts() did not handle resolving multiple UIConstraints issues (STR #3705)
The SetEnv and PassEnv directives had no effect (STR #3664)
The web interface no longer tries to use multi-part delivery when adding printers (STR #3455)
The libusb-based USB backend printed slowly to the LaserJet 1300 and other printers (STR #3405)
"lp" and "lpr" failed to print with Kerberos enabled (STR #3768)
The cupsctl program now displays an error if you try to directly set the Port or Listen directives (STR #3749)
PPD files with "*JobPatchFile: bla" no longer fail to load in relaxed conformance mode (STR #3747)
The scheduler generated a bad notify-text string for printer state change notifications (STR #3739)
The scheduler incorrectly updated printers.conf when it really needed to update classes.conf or remote.cache (STR #3726)
Hardwired remote printers with options did not work (STR #3717)
Accessing the CUPS web interface using a CNAME-based hostname would sometimes fail due to redirection to the actual hostname (STR #3701)
Subscription events had a misspelled attribute (STR #3693)
"make check" failed if LC_MESSAGES was set (STR #3765)
Fixed the configure script to always look for the pkg-config script (STR #3761)
The scheduler now only looks up interface hostnames if HostNameLookups are enabled (STR #3737)
Fixed a compilation problem on DragonFly BSD (STR #3738)
The default PageLogFormat value had the username and job ID swapped from CUPS 1.3.x (STR #3727)
The scheduler could crash if a browsed printer times out while a job is printing (STR #3754)
The scheduler incorrectly mapped custom page sizes to standard sizes (STR #3764)
cupsfilter and pstops did not map IPP attributes to PPD options due to a change in cupsMarkOptions (STR #3756)
The scheduler did not always show the most recent status message from the print filters (STR #3731)
The PostScript filter did not apply the mirror and number-up options properly, leading to offset and clipped output (STR #3732)
The network backends always reported "low toner" or "out of toner" states, even for inkjet printers (STR #3733)

CUPS 1.4.6 (January 6, 2011)

Fixed a "make check" issue on Solaris (STR #3729)
Regression: The pstops filter did not support landscape printing of PostScript files (STR #3722)
The scheduler killed retried (fax) jobs after restarting them (STR #3697)
The cupsAdminSetServerSettings() function disabled sharing when debug logging was enabled (STR #3712)

CUPS 1.4.5 (November 11, 2010)

Documentation fixes (STR #3542, STR #3650)
Localization fixes (STR #3635, STR #3636, STR #3647, STR #3666)
Security: Fixed a memory corruption bug reported in CVE-2010-2941 (STR #3648)
The CUPS API incorrectly mapped the HTTP_UNAUTHORIZED status to the IPP_NOT_AUTHORIZED status code, when IPP_NOT_AUTHENTICATED would be the correct mapping (STR #3684)
The scheduler would restart jobs while shutting down (STR #3679)
Fixed a PPD loader bug that could cause a crash in cupsd (STR #3680)
Improved the mapping of non-standard PPD and PWG names (STR #3671)
The scheduler did not initialize Kerberos in all cases (STR #3662)
cupsAdminSetServerSettings duplicated Listen and Order lines (STR #3645)
Added DeviceN colorspace support to the CUPS Raster format (STR #3419)
ppdMarkDefaults() did not clear the marked field of the previous choices (STR #3642)
The serial backend would not allow a raw job to be canceled (STR #3649)
The socket backend could go into an infinite loop with certain printers (STR #3622)
Setting the PRINTER or LPDEST environment variables to "name/instance" did not work (STR #3485)
The scheduler did not handle the JobRetryLimit setting properly (STR #3466)
The lpstat command always showed a remote job ID of 0 for shared printers (STR #3627)
Increased the write timeout for the libusb-based USB backend to 5 minutes (STR #3595)
The libusb-base USB backend did not check whether the printer has a serial number (STR #3590)
The lpadmin command did not support setting of custom option values (STR #3631)
The lpadmin command did not support setting of the location or description of a class (STR #3613)
The cupsaddsmb command did not give up after too many failed attempts (STR #3615)
The CUPS library no longer uses certain problematic ctype macros that change based on the locale's character set.
PJL value substitution of more than 9 values was broken (STR #3621)
Custom options with missing string values caused ppdEmit* to segfault (STR #3620)
Fixed an issue with the Italian version of the web interface (STR #3624)
Fixed the Solaris SMF configuration file for cups-lpd (STR #3611)
The scheduler did not set the notify-subscribed-event attribute when delivering printer-added or printer-modified events (STR #3608)
The mailto notifier could get into an infinite loop (STR #3609)
Date/time information was not shown in banner pages.
Relational operators were broken in #if/#elif/#else/#endif expressions for the PPD compiler.
Moving a job via the web interface failed without asking for authentication (STR #3559)
The scheduler now clears the printer-state-reasons when the driver is changed (STR #3570)
The web interface did not allow a user to change the driver (STR #3537, STR #3601)
The scheduler was not setting the PATH_INFO environment variable when needed (STR #3600)
The scheduler incorrectly set the CUPSD_AUTH_TYPE environment variable instead of AUTH_TYPE (STR #3599)
Fixed a buffer overrun in the PPD compiler (STR #3594)
Fixed some additional IPP job template attribute mapping issues in the scheduler.

CUPS 1.4.4 (June 17, 2010)

Documentation updates (STR #3453, STR #3527, STR #3528, STR #3529)
Security: The texttops filter did not check the results of allocations (STR #3516)
Security: The fix for CVE-2009-3553 was incomplete (STR #3490)
Security: The web admin interface could disclose the contents of memory (STR #3577)
Security: CUPS could overwrite files as root in directories owned or writable by non-root users (STR #3510)
The cups-config utility did not return the correct linker options on AIX (STR #3587)
Fixed some IPP conformance issues with the scheduler's ippget-event-life, operations-supported, output-bin, and sides attributes (STR #3554)
The OpenSSL interfaces have been made thread-safe and the GNU TLS interface is explicitly forbidden when threading is enabled (STR #3461)
Fixed an IPP conformance issue with the scheduler's Send-Document implementation (STR #3514)
Added additional validation checks for the 1284 device ID (STR #3534)
Fixed a problem with the RPM spec file (STR #3544)
The lpstat command did not limit the job list to the specified printers (STR #3541)
The cupsfilter command did not set the RIP_MAX_CACHE environment variable (STR #3531)
Fixed support for media-col and page size variants (STR #3394)
The PostScript filter did not support all media selection options for the first page (STR #3525)
The scheduler did not always remove job control files (STR #3425)
The scheduler could crash on restart if classes were defined (STR #3524)
The scheduler no longer looks up network interface hostnames by default on Mac OS X (STR #3523)
ippWriteIO did not write collection (member) attributes properly in all cases (STR #3521)
The "cupsctl --remote-any" and corresponding web interface check box (allow printing from the Internet) did not work reliably (STR #3520)
The lpq and lpr commands would sometimes choose different default printers (STR #3503)
cupsDo*Request did not flush error text, leading to multiple issues (STR #3325, STR #3519)
cupsDoAuthentication did not cancel password authentication after 3 failures (STR #3518)
Fixed several LDAP browsing bugs (STR #3392)
The Dymo driver did not support copies (STR #3457)
The scheduler did not update the classes.conf file when deleting a printer belonging to a class (STR #3505)
The lppasswd command did not use localized password prompts (STR #3492)
The socket backend no longer waits for back-channel data on platforms other than Mac OS X (STR #3495)
The scheduler didn't send events when a printer started accepting or rejecting jobs (STR #3480)
The web interface now includes additional CSRF protection (STR #3498)

CUPS 1.4.3 (March 30, 2010)

SECURITY: The scheduler could try responding on a closed client connection, leading to a crash (STR #3200)
SECURITY: The lppasswd program allowed the localization files to be overridden when running in setuid mode (STR #3482)
Localization updates (STR #3352, STR #3409, STR #3422, STR #3452, STR #3473, STR #3502)
Documentation updates (STR #3451, STR #3504)
The IPP backend now sets the printer-state-message to "Ready to print." at the end of a successful job (STR #3460)
The PPD compiler did not correctly add the manufacturer to the output filename when using the "-m" option (STR #3469)
The IPP backend did not handle authentication properly for the Get- Printer-Attributes operation (STR 3458)
Getting SNMP values larger than 127 bytes did not work.
IPP conformance: Get-Jobs has a default value for requested-attributes (STR #3383)
cupsPrintFiles() did not report all errors (STR #3449)
cupsAddDest() could read freed memory (STR #3448)
The DBUS notifier did not build (STR #3447)
The scheduler would crash when an active printer was deleted.
The snmp backend did not work with some printers (STR #3413)
The web interface did not show the conflicting values when setting options (STR #3440)
Setting options in the web interface did not always work (STR #3439)
The scheduler did not use the Get-Job-Attributes policy for a printer (STR #3431)
The scheduler added two job-name attributes to each job object (STR #3428)
CSS files would not print (STR #3442)
The scheduler did not clean out completed jobs when PreserveJobHistory was turned off (STR #3425)
The web interface did not show completed jobs for a printer (STR #3436)
Authenticated printing did not always work when printing directly to a remote server (STR #3435)
The USB backend did not work on Solaris (STR #3423)
cupstestppd didn't catch problems with JobPatchFile definitions (STR #3421)
The socket backend could crash if a SNMP string had a negative length.
Fixed some termination issues with the USB backend on Mac OS X.
The side-channel APIs did not handle interrupts properly.
The network backends incorrectly cleared the media-empty-warning state.
The web interface did not allow users to successfully add serial printers (STR #3391)
cupsTempFd() did not work in some situations (STR #3382)
Some C API headers were missing C++ wrapper logic.
The PPD compiler did not localize single-language PPD options properly (STR #3386)
Modifying a printer from the web interface sometimes caused the wrong driver to be selected (STR #3418)
The scheduler did not handle out-of-memory conditions properly when loading a job (STR #3407)
When adding printers from the web interface, the dynamic updates of the device list made it hard to pick a device (STR #3406)
Fixed a typo in the web interface admin page template (STR 3403)
The web interface did not preserve the "printer is shared" state when modifying a printer (STR #3390)
The PPD compiler incorrectly inserted translations of empty strings (STR #3411)
The scheduler did not reset the SIGPIPE handler of child processes (STR #3399)
cupsGetNamedDest() incorrectly returned the default printer if the named printer did not exist (STR #3397)
Fixed a GNU TLS error handling bug (STR #3381)

CUPS 1.4.2 (November 9, 2009)

SECURITY: The CUPS web interface was vulnerable to several XSS and HTTP header/body attacks via attribute injection (STR #3367, STR #3401)
Fixed localization errors (STR #3359, STR #3372, STR #3380, STR #3387)
The documentation for classes.conf and printers.conf did not provide the correct instructions for manual changes (STR #3351)
The scheduler did not always rebuild printer cache files when the driver was changed (STR #3356)
The documentation makefile failed to install localizations when using newer versions of Bash (STR #3360)
The configure script did not use the --with-xinetd value for the default LPD configuration path (STR #3347)
The configure script incorrectly required glib for DBUS support (STR #3346)
The cupstestppd program incorrectly reported filters with bad permisssions as missing (STR #3363)
The cups.desktop file used the wrong locale names (STR #3358)
cupsSideChannelRead() did not return an error for short reads.
The installed PAM configuration file did not use the correct options with the pam_unix2 module (STR #3313)
The scheduler did not preserve default options that contained special characters (STR #3340)
The scheduler did not remove old pre-filters when updating a printer driver (STR #3342)
The HP/GL-2 filter did not check for early end-of-file (STR #3319)
The USB backend did not compile on some platforms (STR #3332)
cupsSideChannelSNMPWalk() could go into an infinite loop with broken SNMP implementations.

CUPS 1.4.1 (September 11, 2009)

Documention fixes (STR #3296)
SNMP supply levels and states were wrong for some printers.
The IPP backend did not update the auth-info-required value.
The libusb-based USB backend would hang at the end of the job (STR #3315, STR #3318)
DNS-SD registrations for raw queues had an empty "ty" key (STR #3299)
The JPEG and BMP MIME type rules were broken (STR #3284)
cupsGetNamedDest returned the default printer when the named destination did not exist (STR #3285)
The JobKillDelay was not triggered for canceled jobs (STR #3292)
The PPD compiler could get in an infinite loop (STR #3293)
The configure check for dns-sd.h was broken (STR #3297)
The "Query Printer for Default Options" page did not go away if the query job was held (STR #3302)
Boolean options did not show up as selected in the web interface (STR #3303)
The scheduler did not cache or report driver information files correctly, leading to a variety of issues (STR #3283, STR #3297, STR #3305)
cupsDoIORequest() did not abort on permanent errors (STR #3311)
Modifying a class in the web interface did not work (STR #3312)
BrowseLocalProtocols could be cleared when changing the sharing setting (STR #3287)
The scheduler could return an empty supported document format (STR #3308)
The PPD compiler generated invalid PPD files when the locale used something other than "." for the decimal point (STR #3300)
The IPP backend did not handle some non-comforming IPP printer implementations (STR #3262)
The scheduler leaked three file descriptors to each job filter (STR #3263)
The scheduler now uses a default CUPS-Get-Devices timeout of 15 seconds (STR #3307)

CUPS 1.4.0 (August 28, 2009)

Localization updates (STR #3223, STR #3246, STR #3248, STR #3250)
Documentation updates (STR #3225, STR #3230, STR #3242, STR #3260)
The --with-pdftops configure option did not accept a full path to the filter (STR #3278)
The banner filter did not position the back side image correctly (STR #3277)
The dnssd backend could crash (STR #3272)
The 1284 device ID sometimes contained trailing garbage (STR #3266)
The USB backend returned different URIs for some printers than in CUPS 1.3 (STR #3259)
The scheduler did not do local job-hold-until processing for remote queues (STR #3258)
The scheduler did not try all possible SSL certificates on Mac OS X.
The scheduler did not always remove a file descriptor when using the kqueue interface (STR #3256)
The scheduler did not protect against bad job control files in all cases (STR #3253)
The scheduler did not encode "+" in model names (STR #3254)
The web interface didn't show the default options (STR #3244)
The IPP and LPD backends needed print data before they would do an SNMP query.
Fixed a GNU TLS compatibility issue (STR #3231)
Fixed a HTML error in the add and modify printer web interface templates (STR #3229)
The scheduler did not minimize the number of printer state events that were generated by filter STATE: messages, which could lead to poor performance.
The USB backend on Mac OS X did not cleanly cancel a job.
The network backends now set the connecting-to-device printer-state- reasons value when looking up the address and copying the print data for consistency.
The scheduler now supports the com.apple.print.recoverable-warning reason on all platforms.

CUPS 1.4rc1 (June 8, 2009)

The PPD compiler documentation was missing information on localization (STR #3212)
The IPP backend now reconnects after every request when talking to printers that claim IPP support but only use HTTP/1.0.
The PPD compiler crashed when both "Resolution" and "Group foo Option Resolution" were specified in the .drv file.
The PPD compiler's #if/#elif/#else/#endif did not work for undefined variables (STR #3210)
Static libraries could not be installed by a non-root user on systems needing a ranlib program (STR #3209)
The scheduler incorrectly always tried to copy Kerberos credentials for print jobs.
Updated the Spanish localization (STR #3204)
The scheduler crashed when getting the default paper size from libpaper (STR #3205, STR #3206)
The PPD compiler now defines six variables: CUPS_VERSION, CUPS_VERSION_MAJOR, CUPS_VERSION_MINOR, CUPS_VERSION_PATCH, PLATFORM_NAME, and PLATFORM_ARCH (STR #3203)
Fixed a whitespace skipping bug in cupsRasterInterpretPPD.
The scheduler did not return HTTP 403 (Forbidden) for authenticated users that were not authorized to do IPP operations (STR #3193)
The scheduler did not report more than 8 Product strings from a PPD file. Some PPD files have as many as 24.
ppdOpen*() could crash if a keyword had no value string (something that cupstestppd looks for...)
cupsLangDefault() did not return the correct language on Mac OS X.
The Mac OS X USB backend did not handle aborted or stalled pipe conditions properly, which prevented drivers from ejecting partial pages when a job was canceled or held.

CUPS 1.4b3 (May 19, 2009)

Documentation fixes (STR #3044, STR #3057, STR #3153, STR #3158, STR #3173)
Added complete localizations for German, Japanese, Polish, and Russian and partial localizations for Chinese, Danish, Finnish, French, Italian, Korean, Norwegian, Portuguese, and Swedish (STR #3096, STR #3098, STR #3109, STR #3111, STR #3141)
Updated the configure check for -fstack-protector (STR #3198)
The network backends now correctly convert SNMP supply descriptions to UTF-8 encoding as needed.
The scheduler could crash when deleting an attribute (STR #3197)
The cups-driverd program did not detect symlink loops (STR #3185)
The EPSON 24-pin series driver should now feed the correct amount (STR #2624)
The scheduler now automatically logs the last N debug messages for failed print jobs.
You can now modify a raw print queue (STR #3133)
Fixed a number of ppdi issues and added a unit test to validate that ppdc + ppdi can generate and import the same data (STR #3152)
Moving jobs in the web interface now shows an error if you only have one printer or class added (STR #3094)
Since classes have never truly supported the printer-error-policy stuff added in CUPS 1.2, update the code to reflect the current reality and support only the retry-current-job policy for now (STR #3171)
Revised the password callback support (STR #2953)
ppdEmit*() did not choose between PageSize and PageRegion properly.
Make some fairly substantial changes to the Kerberos support code so that CUPS can work in multi-realm environments and does not require delegatable credentials. Shared printing still requires delegation, however "delegation by policy" can be enabled in the KDC to make this all work.
"AccessLogLevel actions" did not hide client-error-not-found errors.
AP_FIRST_InputSlot did not work with number-up.
cupsBackChannelRead() and cupsBackChannelWrite() could fail due to a lack of kernel buffers.
The IPP and LPD backends did not respond to side-channel requests while copying print data to a temporary file.
cupsWriteRequestData() flushed the output buffer unnecessarily, causing reduced performance in some situations.
If a CGI process died before sending its MIME headers, the request would hang on the client.
The printer/class/job search feature on the web interface did not work (STR #3132)
The scheduler did not write the printers out for classes.
CUPS-Get-PPDs did not work properly when filtering by language, product, or psversion (STR #3136)
The scheduler now kills job filters when it takes more than 30 seconds (configurable) to cancel or hold the job.
The cupstestppd program did not validate the capitalization of filenames in the PPD file.
The cupstestppd program did not validate the PageSize and PageRegion values.
The cups-deviced helper program could miss reporting some backend devices (STR #3108)
The cupsSideChannelSNMP* functions did not work.
The scheduler could consume 100% CPU when jobs were canceled.
Clicking on "Select Another Make/Manufacturer" in the web interface incorrectly added the printer (STR #3095)
The scheduler no longer uses programs with insecure file permissions.
httpAssembleURI*() did not escape backslashes in hostnames.
The dnssd backend did not unquote "full names" before creating the device URI.
The scheduler now supports JobRetryInterval values less than 10 seconds.
Updated the Spanish localization (STR #3090)
The scheduler did not redo Bonjour/DNS-SD registrations when updating them failed.
The "authenticated" policy incorrectly required authentication for status operations.
ppdOpen*() incorrectly loaded PPDs with multiple JobPatchFile keywords.
The network backends no longer report the SNMP "offline" or maintenance status bits since they are inconsistently implemented and often unreliable.
The scheduler no longer logs child processes killed via SIGKILL as "crashed".
The printer link shown on the "job moved" template was bad (STR #3085)
Updated the HTML templates to use the final HTML 4 DOCTYPE (STR #3086)
The scheduler did not track the "paused" reason properly if a printer had other reasons associated with it.
cupsSendRequest() did not clear old local certificate auth data.
The PPD compiler did not search for localization files properly (STR #3084)
cupsGetNamedDest() did not use the fallback default like cupsGetDests*() (STR #3082)
The scheduler now provides a LogTimeFormat directive to enable microseconds in the date and time that are logged.
The scheduler now provides a MultipleOperationTimeout directive to control the timeout for multi-file print jobs.
The configure script incorrectly allowed Avahi to be used for DNS-SD printer discovery (STR #3065)
The web interface and scheduler did not support URIs up to 1024 bytes in length (STR #3072)
Fixed pdftops issues with page sizes (STR #3063)
Fixed pdftops issues with Ghostscript (STR #3062)
The scheduler incorrectly registered default profiles for PostScript printers with no specified colorspace.
The scheduler incorrectly created an empty org.cups.printers.plist file on Mac OS X.
cupsGetPPD3() did not look for local PPDs in the right directory.
SNMP lookups via side-channel did not work for NULL-VALUE and and OCTET-STRING OIDs containing nul characters.
The libusb-based USB backend did not work.
The scheduler did not set the printer-commands attribute correctly for some PPDs.
The ppdi utility did not work.
The web interface no longer uses multi-part output with old or broken web browsers (STR #3049)
CUPS now conforms to the draft IPP/2.0 and IPP/2.1 specification.
Added a new cupsGetConflicts() API to get a list of conflicting options.
The PPD compiler didn't localize options or choices that did not have associated translation text (STR #3045)
Updated the Spanish localization (STR #3043)
Fixed build problems (STR #3040, STR #3047)
cupsResolveConflicts() did not resolve using the default option choice in some cases due to the mirror UIConstraints that are present in most PPD files.
The scheduler did not honor MIME type priorities.
The commandtops filter incorrectly used the JCLBegin code to end its jobs.
The default BrowseLocalProtocols value was not set properly.
Since the commandtops filter does not actually support ReportLevels all on its own, don't list that printer command by default for PS printers.
The scheduler did not give filters a chance to log errors or update printer attributes when a job was canceled.
The scheduler did not clear the "connecting-to-device" reason keyword when a job finished.

CUPS 1.4b2 (December 15, 2008)

Documentation updates (STR #2983, STR #2998, STR #3021)
The cupstestppd utility now validates the FileVersion and FormatVersion values in PPD files.
The default cupsd.conf file did not reflect the --with-local-protocols value set at compile-time (STR #3037)
The cupsGetPPD* APIs now create symlinks to local PPD files rather than copying them whenever possible.
Various performance optimizations in the string pool, dests, and options implementations.
The cupsGetDests* APIs now return the marker and printer-commands attributes.
Side-channel SNMP lookups would not work when cupsSNMPSupplies was set to False in the PPD file.
Localized the device descriptions for the SCSI, serial, and network backends (STR #3014)
Added a Spanish localization (STR #3015)
Added support for marker-low-levels and marker-high-levels attributes.
The scheduler could hang writing a long log line.
The cupsGetDevices() function now has an "include_schemes" parameter.
The lpinfo command now supports --include-schemes and --exclude-schemes options.
The CUPS-Get-PPDs operation now supports the include-schemes and exclude-schemes attributes.
The CUPS-Get-Devices operation now supports the include-schemes attribute.
The print filters now support a replacement for the fitplot option called "fit-to-page".
The LPD backend no longer tries to collect page accounting information since the LPD protocol does not allow us to prevent race conditions.
The scheduler did not save the last marker-change-time value.
Fixed a problem with printing to some IPP printers, including CUPS 1.1.x.
Fixed a redirection problem with the printer web page (STR #3012)
Fixed a PPD compiler problem with the loading of message catalogs (STR #2990)
Fixed a PPD compiler problem with the loading of .strings files (STR #2989)
The cupsfilter utility did not set the CONTENT_TYPE environment variable when running filters.
The scheduler now waits to allow system sleep until the jobs have all stopped.
The IPP, LPD, and socket backends used different "connecting" progress messages.

CUPS 1.4b1 (October 27, 2008)

Documentation updates (STR #2567)
The PPD compiler now allows local message catalogs to override the standard CUPS translations (STR #2642)
The ppdmerge command did not merge custom option strings (STR #2863)
The scheduler now supports the Hold-New-Jobs and Release-Held-New-Jobs operations; these are exposed via the cupsdisable and cupsenable commands (STR #2332)
The lpstat command is now much faster when displaying the status of a single printer (STR #2843)
The scheduler now caches information from PPD files to provide significantly faster startup time with large numbers of PPDs (STR #1293)
CUPS-Get-Driver now provides much better driver matching based on the IEEE-1284 device ID and make/model strings (STR #2707)
Now support the cupsSNMPSupplies keyword to control whether the network backends query the SNMP Printer MIB for supply levels.
Now support and use a new banner file format for better text support and easier customization (STR #2490)
The scheduler now sets the PRINTER_INFO and PRINTER_LOCATION environment variables from the corresponding IPP attributes.
The ippRead*() and ippWrite*() functions no longer use a stack-based buffer (STR #2388)
The CUPS-Add-Modify-Printer operation now allows you to set the printer-state-reasons attribute.
The "set printer options" page now supports auto-configuration of printer options (STR #1440)
The web interface now provides an advanced server settings form.
The web interface's "modify printer" pages now make it easier to change just one setting (STR #1919)
The scheduler now supports a plist PrintcapFormat.
The scheduler now supports multiple addresses in Allow and Deny lines, just like Apache (STR #2947)
Added CUPS_JOBTYPE environment variable for job filters so they know whether they are printing a banner or document file (STR #2799)
Added support for printer filtering by the cupsfilter command (STR #2562)
Added a SSLOptions directive to allow Windows clients to talk to CUPS in FIPS mode (STR #2827)
Renamed the accept and reject commands to cupsaccept and cupsreject; the old names are still available (STR #2936)
The locale/translate utility needed an update to work with Google (STR #2882)
The lpstat command now supports a -H option to display the default server (STR #2833)
The scheduler now supports a FatalErrors directive to control which errors should cause the scheduler to exit (STR #2536)
The scheduler now uses the php-cgi program if it is available (STR #2923)
The scheduler now supports a DefaultPaperSize directive (STR #2848)
The scheduler now passes the job-originating-host-name value to filters in the options argument (STR #2558)
CUPS now supports job tickets in PDF files (STR #2903)
Added a DBUS notifier (STR #2529)
The LPD mini-daemon now passes the document name when queuing print jobs (STR #2482)
The IPP backend did not relay com.apple.print.recoverable-message values.
The scheduler now supports a job-media-progress attribute to track the progress of individual pages.
The sample HP driver now supports A5 (STR #2798)
The CUPS web interface menu item now uses the xdg-open command, when available (STR #2724)
The cups-lpd program now supports the -h option (STR #2794)
The scheduler now sets the PAM_TTY parameter and the PAM_ESTABLISH_CRED credential flag (STR #2745)
The scheduler now logs unsuccessful requests to the error_log file as errors (STR #2616)
Added support for a "retry-current-job" error policy that retries the current job immediately when the backend encounters an error (STR #2555)
The scheduler now returns a "forbidden" error when a user correctly authenticates but does not have permission to continue further (STR #2101)
The scheduler now loads both the server and CA certificates (if present) from the ServerCertificate file (STR #2146)
New RSS subscriptions now create their feed files immediately (STR #2853)
Added support for a device-location attribute which provides the physical location of a printer device.
Added a cupsBackendReport() API which handles quoting of the device data by a backend.
Added support for custom options in the web interface (STR #1729)
Added support for Mozilla LDAP, reconnection to LDAP servers, and improved LDAP performance (STR #1962)
Added Solaris SMF support (STR #1477)
Added optional support for using TCP wrappers to limit access to CUPS (STR #263)
Added ppdPageSizeLimits API.
Added support for new cupsMediaQualifier2, cupsMediaQualifier3, cupsMinSize, and cupsMaxSize attributes.
Added cupsResolveConflicts and ppdInstallableConflict APIs.
Added support for new cupsUIConstraints and cupsUIResolver attributes for better option conflict detection and resolution.
Increased the maximum size of 1284 device ID strings to 256 bytes (STR #2877)
Added an AccessLogLevel directive to cupsd.conf to control what is logged to the access_log file.
The default LogLevel is now "warn" instead of "info" to reduce the amount of logging that is done to disk by default.
The PPD compiler did not include OID query keywords in PPD files (STR #2871)
The cups-driverd helper program now directly supports driver information files.
The USB backend now uses libusb when available (STR #1575)
Added ppdLocalizeAttr function to get the localized version of an attribute.
MIME types now support a priority() attribute (STR #2719)
The standard MIME types are now installed in DataDir/mime (STR #2719)
The lpoptions command now describes custom options and the necessary parameters (STR #2660)
The ppdmerge program did not support Simplified Chinese or Traditional Chinese language version strings (STR #2851)
The PPD compiler now supports localizable attributes (STR #2738)
The ppdpo utility now includes cupsIPPReasons values in the message catalogs it generates (STR #2754)
The PPD compiler now supports conditional directives (STR #2636)
The ppdc utility now supports a "-t" option to test PPD files (STR #2739)
The ppdc utility now supports a "-m" option to use the ModelName value as the output filename.
The ppdc utility now supports a FileName directive to set an alternate output filename (STR #2740)
The side-channel API now supports SNMP queries for the standard network backends.
Added a PageLogFormat directive to the cupsd.conf file to control the format of lines in the page_log file.
Filters can now send PPD: messages to stderr to set PPD keywords like DefaultPageSize while a job is printing.
Added a mdns backend for discovery and printing to printers that advertise themselves via DNS-SD (Bonjour)
The ipp, lpd, and socket backends now support DNS-SD service name resolution.
The scheduler now uses a single shared file descriptor for all DNS-SD registrations (STR #2674)
The ipp, lpd, and socket backends now support SNMP-based page accounting and supply level monitoring (STR #1655)
Added support for cupsPJLDisplay attribute to control what PJL commands are used to display the job information.
Driver information files can now be installed in /Library/Printers/PPDs.drv on Mac OS X.
The CUPS image library now supports reading images larger than 2GB.
The scheduler now delays writing config and state files to reduce disk activity (STR #2684)
The CUPS-Get-Devices operation now supports the exclude-schemes and timeout attributes to control which backends are polled and for how long.
The cups-deviced helper application now runs backends in parallel to get the list of devices faster.
Added --enable-pap configure option.
The default cupsd.conf file now includes an "authenticated" policy which requires authentication for remote print jobs.
Added support for Czech and Hungarian in PPD files (STR #2735, STR #2736)
The PPD compiler tools now support Mac OS X .strings files for localization (STR #2737)
ppdOpen*() now default the colorspace member to PPD_CS_N when no DefaultColorSpace attribute is present in the PPD file.
The build system has been updated to support separate installation of data, program, header, and library files.
All support libraries are now built as shared libraries by default.
The scheduler now manages ICC color profiles on Mac OS X.
The network backends (ipp, lpd, socket) now support SNMP-based supply and page count monitoring (STR #1655)
The lppasswd program is no longer installed setuid to root to make the default installation more secure.
Added a new ppdLocalizeMarkerName() function to get the localized version of a marker-names value.
The scheduler now provides the printer-dns-sd-name attribute for printers shared via DNS-SD/Bonjour.
The pdftops filter now executes the Xpdf or poppler pdftops utility to convert PDF files (STR #1471)
Bonjour printer registrations now advertise as local or global based on the current access policies for the printer.
cupsGetDests*() and cupsSetDests*() now track the last used printer preference on Mac OS X.
Added a new streaming request API (STR #2261)
Added a new cupsGetNamedDest() function to the CUPS library for faster printing with lp and lpr (STR #2638)
The scheduler now sets the PAM RHOST value on systems that support it (STR #2637)
The scheduler now sandboxes child processes when possible.
The Cancel-Job operation now supports a purge-job attriibute to purge a specified job.
ppdEmit* and ppdCollect* now use the NonUIOrderDependency attributes for custom option selections.
The web interface now enables/disables the printer sharing (formerly publishing) controls based on the server-is-sharing-printers state (STR #2233)
The scheduler now tracks printer sharing via the server-is-sharing-printers attribute, and manages LPD and SMB sharing as well (STR #2233)
The web interface now allows you to go back to the make/ manufacturer page if there is no matching printer driver on the model page (STR #2436)
The printer list now shows the default media, banner, and duplex options as well as the color and duplex capabilities of printers (STR #1175)
The web interface look-n-feel has been updated (STR #2492)
The scheduler now supports a CUPS-Get-Document operation that returns the specified print job document (STR #118)
The cupsfilter utility now supports a "-J jobid" option to filter the document from the specified job.
The scheduler (cupsd) now supports a new option (-t) to do a syntax check of the cupsd.conf file (STR #2003)
Added new cupsGetPPD3() API to allow applications to cache PPDs safely (STR #1473)
Added generic PostScript and PCL printer driver PPDs.