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Changes in libcups

v3.0.2 - YYYY-MM-DD

  • Updated ipptool to limit the range of supported raster resolutions for the generated test page content from 1 to 9600dpi.
  • Fixed a recursion issue with encoding of nested collections.
  • Fixed a potential margin issue when generating A4 PCL from ipptransform.
  • Fixed exporting of JSON with very large numbers.
  • Fixed page header validation in cupsRasterReadHeader and cupsRasterWriteHeader for banded raster data.
  • Fixed potential crash bug in cupsCheckDestSupported function.

v3.0.1 - 2026-04-09

  • Updated the internal implementation of ipp_t to avoid issues on some embedded platforms (Issue #141)
  • Updated httpAddrLookup to return a numeric address when the resolver returns "localhost" for a non-loopback address.
  • Updated cupsFileGetConf and cupsFilePutConf to escape more characters.
  • Updated cupsRasterReadHeader to validate more of the page header values.
  • Updated ippeveprinter to support custom "printer-state-reasons" keyword values (Issue #142)
  • Fixed a bug when the ippFindXxx and ippSetXxx functions were mixed (Issue #138)
  • Fixed error handling in the low-level TLS read/write functions.

v3.0.0 - 2026-01-08

  • Added cupsLangIsRTL API.
  • Added cupsOAuthGetDeviceGrant, cupsOAuthGetJWKS, and cupsOAuthGetUserId APIs.
  • Added httpGetCookieValue and httpGetSecurity APIs.
  • Added an "install" sub-command to the cups-x509 command.
  • Added a "--user-agent" option to the ipptool command.
  • Updated documentation (Issue #113)
  • Updated the cupsOAuth APIs to support sharing of some OAuth values between the system (root) and per-user cache values.
  • Updated the cupsJWTNew API to accept an optional JSON claims object.
  • Updated the httpSetCookie API to support multiple "Set-Cookie:" header values.
  • Updated ippfind to use the cupsGetClock API.
  • Updated ippeveprinter to include all ready and supported attributes and values in the environment when processing a job.
  • Fixed ipptransform media handling to preserve input document dimensions when "media" or "media-col" are not specified (Issue #102)
  • Fixed cupsJSONExport functions with empty arrays or objects.
  • Fixed httpGetDateTime for dates in the far future (Issue #124)
  • Fixed input checks for cupsCreateCredentials and cupsCreateCredentialsRequest APIs (Issue #125)
  • Fixed return values of ippDateToTime when the timezone isn't GMT.
  • Fixed a potential timing issue with cupsEnumDests.
  • Fixed a bug in the Avahi implementation of cupsDNSSDBrowseNew.
  • Fixed a memory leak in httpClose.
  • Fixed some Coverity-detected issues.
  • Fixed support for device authorization grants.

v3.0rc4 - 2025-03-18

  • Added cupsCopyCredentialsPublicKey API.
  • Added cupsGetClock API.
  • Added cupsJWTLoadCredentials API.
  • Added "client.conf" man page.
  • Added cups-oauth and cups-x509 utilities (Issue #108)
  • Updated documentation (Issue #99)
  • Updated the ipptool utility to support the --bearer-token and --client-name options.
  • Updated cupsOAuthGetMetadata to support Microsoft Azure/Entra OAuth servers.
  • Updated ipptransform to support generation of PCLm output in addition to PWG Raster data.
  • Updated cupsEnumDests and cupsGetDests to support printer browsing and filtering options in client.conf (Issue #106)
  • Fixed handling of finishings/finishings-col and media/media-col in the ippeveprinter tool (Issue #95)
  • Fixed a duplicate printer reporting bug in cupsGetDests.
  • Fixed handling of NULL path in cupsSaveCredentials API.
  • Fixed handling of default authorization strings.
  • Fixed validation of dateTime values with time zones more than UTC+11.

v3.0rc3 - 2024-10-22

  • Updated cupsCreateCertificateRequest to store the new private key separately.
  • Updated cupsSaveCredentials to validate the input credentials, support using a saved private key from cupsCreateCertificateRequest, and support credential removal as documented.
  • Updated the raster functions to report more issues via cupsRasterGetErrorString.
  • Fixed a crash bug on Windows.

v3.0rc2 - 2024-10-15

  • Updated httpConnectAgain to re-validate the server's X.509 certificate (Issue #90)
  • Updated the source tarball script to include the PDFio sources.
  • Fixed handling of empty resolution values passed to ipptool (Issue #63)
  • Fixed a compressed file error handling bug (Issue #91)
  • Fixed the default User-Agent string sent in requests.
  • Fixed a recursion issue in ippReadIO.

v3.0rc1 - 2024-09-20

  • Added cupsFormatString and cupsFormatStringv APIs to safely format UTF-8 strings.
  • Added support for per-user instances of cups-locald (Issue #69)
  • Added httpConnectURI API.
  • Added "end" argument to cupsParseOptions API.
  • Renamed httpReconnect to httpConnectAgain.
  • Updated cupsDestInfo to accept a cups_dest_flags_t argument.
  • Updated cupsCopyString and cupsConcatString APIs to safely terminate UTF-8 strings.
  • Updated list of attributes included in the destination options.
  • Updated cupsAddIntegerOption and cupsGetIntegerOption to use the long type.
  • Updated httpAddrConnect() to handle POLLHUP together with POLLIN or POLLOUT.
  • Updated the various tool man pages, usage output, and examples.
  • Updated ippCreateRequestedArray for the Get-Documents and Get-Output-Device-Attributes operations.
  • Updated ipptool to validate IPP, PDF, and .strings files using the "WITH-[ALL-]CONTENT" predicate (Issue #87)
  • Now use installed PDFio library, if available.
  • Now use NotoSansMono font for ipptransform text conversions.
  • Brought back IPP/2.x and related conformance test files (Issue #85)
  • The ipptransform program now supports uncollated copies.
  • Fixed GNU TLS crash.
  • Fixed PCL output from ipptransform (Issue #72)
  • Fixed JSON output from ipptool.
  • Fixed hang/crash in cupsEnumDests/cupsGetDests (Issue #74)
  • Fixed encoding of IPv6 addresses in HTTP requests (Issue #78)
  • Fixed encoding of IPP_TAG_EXTENSION values in IPP messages (Issue #80)
  • Fixed error handling when reading a mixed 1setOf attribute (Issue #83)
  • Fixed non-quick copy of collection values.
  • Fixed error handling in cupsConnectDest.
  • Fixed TLS negotiation using OpenSSL with servers that require the TLS SNI extension.
  • Fixed a certificate loading issue with OpenSSL.
  • Fixed cupsAreCredentialsValidForName with OpenSSL.
  • Fixed how ippeveprinter responds to an unsupported request character set.

v3.0b2 - 2023-10-05

  • Added the ipptransform command to replace/upgrade the ippevepcl and ippeveps commands (Issue #65)
  • Added cupsFormDecode and cupsFormEncode APIs (Issue #49)
  • Added cupsJWT APIs to support JSON Web Tokens (Issue #50, Issue #52)
  • Added ippAddCredentialsString and ippCopyCredentialsString APIs (Issue #58)
  • Added cupsCreateCredentialsRequest and cupsSignCredentialsRequest APIs and updated cupsCreateCredentials API to better support X.509 certificates (Issue #59)
  • Updated the configure script to add _FORTIFY_SOURCE=3 (previous level was 2) when not using address sanitizer and when it hasn't already been added (Issue #51)
  • Updated the httpAddrListen function to use the maximum backlog value.
  • Fixed ipptool limit on the size of an attribute value that would be printed (Issue #5)
  • Fixed some configure script issues (Issue #48)
  • Fixed JSON output bug in ipptool.
  • Fixed CUPS_DNSSD_IF_INDEX_LOCAL when using Avahi.

v3.0b1 - 2023-02-09

  • Documentation updates (Issue #32)
  • Split out libcups and tools from CUPS 2.x.
  • Simplified the configure script.
  • Now require a C99-capable C compiler.
  • Now require GNU TLS, LibreSSL, or OpenSSL.
  • Now require ZLIB.
  • Now require POSIX or Windows threading support.
  • Now require the poll function (WSAPoll on Windows).
  • Now install with a prefix by default to allow coexistance with CUPS 2.x (Issue #21)
  • Added new GENERATE-FILE directive for ipptool test files.
  • Added new ATTR-IF-DEFINED and ATTR-IF-NOT-DEFINED directives to IPP data files (Issue #3)
  • Added ippFile API for working with IPP data files as used by ipptool, ippexeprinter, and other tools (Issue #14)
  • Added a roll to the default color ippeveprinter printer.
  • Added new DNS-SD API (Issue #19)
  • Added new PWG media sizes.
  • Added new WITH-ALL-VALUES-FROM predicate for ipptool files (Issue #20)
  • Added new SAVE-ALL-CONTENT, WITH-ALL-CONTENT, and WITH-ALL-MIME-TYPES predicates for ipptool files (Issue #22)
  • Added, modernized, and promoted the localization interfaces to public API (Issue #24)
  • Added public JSON API (Issue #31)
  • Added new basename variable for use in ipptool files (Issue #44)
  • Updated the CUPS API for consistency.
  • Fixed ipptool's handling of EXPECT for member attributes (Issue #4)
  • Fixed ipptool's support for octetString values (Issue #23)
  • Removed all obsolete/deprecated CUPS 2.x APIs.
  • Removed (obsolete) Kerberos support.
  • Removed support for SecureTransport (macOS) due to deprecation of the platform API.
  • Removed support for SChannel (Windows) due to restrictions on its use in domain accounts.