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Release of KDE Frameworks 5.52.0

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November 10, 2018. KDE today announces the release of KDE Frameworks 5.52.0.

KDE Frameworks are 70 addon libraries to Qt which provide a wide variety of commonly needed functionality in mature, peer reviewed and well tested libraries with friendly licensing terms. For an introduction see the Frameworks 5.0 release announcement.

This release is part of a series of planned monthly releases making improvements available to developers in a quick and predictable manner.

New in this Version


  • Unbreak build with BUILD_QCH=TRUE
  • Actually use fileNameTerms and xAttrTerms
  • [Balooshow] Avoid out-of-bounds access when accessing corrupt db data
  • [Extractor] Do not check QFile::exists for an empty url
  • [Scheduler] Use flag to track when a runner is going idle
  • [Extractor] Handle documents correctly where mimetype should not be indexed
  • [Scheduler] Fix wrong usage of obsolete QFileInfo::created() timestamp (bug 397549)
  • [Extractor] Make extractor crash resilient (bug 375131)
  • Pass the FileIndexerConfig as const to the individual indexers
  • [Config] Remove KDE4 config support, stop writing arbitrary config files
  • [Extractor] Improve commandline debugging, forward stderr
  • [Scheduler] Reuse fileinfo from FilteredDirIterator
  • [Scheduler] Reuse mimetype from UnindexedFileIterator in indexer
  • [Scheduler] Remove superfluous m_extractorIdle variable
  • Perform checks for unindexed files and stale index entries on startup
  • [balooctl] Print current state & indexing file when monitor starts (bug 364858)
  • [balooctl] Monitor also for state changes
  • [balooctl] Fix "index" command with already indexed, but moved file (bug 397242)


  • Add Media and MediaEndpoint API header generation

Breeze Icons

  • Change package manager icons to emblems
  • Re-add monochrome link icon as action
  • Improve emblem contrast, legibility and consistency (bug 399968)
  • Support "new" mimetype for .deb files (bug 399421)

Extra CMake Modules

  • ECMAddQch: help doxygen by predefining more Q_DECL_* macros
  • Bindings: Support using sys paths for python install directory
  • Bindings: Remove INSTALL_DIR_SUFFIX from ecm_generate_python_binding
  • Add support for the fuzzer sanitizer


  • support for multi pages kcms


  • Add mechanism to notify other clients of config changes over DBus
  • Expose getter method for KConfig::addConfigSources


  • Allow KHelpCenter to open the right pages of KDE help when KHelpClient is invoked with an anchor


  • KCrash: fix crash (ironic heh) when used in an app without QCoreApplication


  • make push/pop part of ConfigModule API


  • Remove useless "No X-KDE-DBus-ServiceName found" message


  • Reference product "KF5" in widget metadata, instead of "KDE"


  • API dox: add minimal docs to KDocTools namespace, so doxygen covers it
  • Create a QCH file with the API dox, optionally, using ECMAddQCH
  • Wait for docbookl10nhelper to be built before building our own manpages
  • Use specified Perl interpreter instead of relying on PATH


  • [ExtractorCollection] Use only best matching extractor plugin
  • [KFileMetaData] Add extractor for generic XML and SVG
  • [KFileMetaData] Add helper for XML encoded Dublin Core metadata
  • implement support for reading ID3 tags from aiff and wav files
  • implement more tags for asf metadata
  • extract ape tags from ape and wavpack files
  • provide a list of supported mimetypes for embeddedimagedata
  • compare with QLatin1String and harmonize handling of all types
  • Don't crash on invalid exiv2 data (bug 375131)
  • epubextractor: Add property ReleaseYear
  • refactor taglibextractor to functions specific for metadata type
  • add wma files/asf tags as supported mimetype
  • use own extractor for testing the taglibwriter
  • add a string suffix to test data and use for unicode testing of taglibwriter
  • remove compile time check for taglib version
  • extend test coverage to all supported mimetypes for taglibextractor
  • Use variable with already fetched text instead of fetching again


  • Fix keyboard layout change notifications (bug 269403)


  • Add Bahrain Holiday File
  • Make KHolidays work as static library too


  • Add a QIconEnginePlugin to allow QIcon deserialization (bug 399989)
  • [KIconLoader] Replace heap-allocated QImageReader with stack-allocated one
  • [KIconLoader] Adjust emblem border depending on icon size
  • Center icons properly if size doesn't fit (bug 396990)


  • Do not try to fallback to "less secure" SSL protocols
  • [KSambaShare] Trim trailing / from share path
  • [kdirlistertest] Wait a little longer for the lister to finish
  • Display sorry message if file is not local
  • kio_help: Fix crash in QCoreApplication when accessing help:// (bug 399709)
  • Avoid waiting for user actions when kwin Focus stealing prevention is high or extreme
  • [KNewFileMenu] Don't open an empty QFile
  • Added missing Icons to Places Panel code from KIO
  • Get rid of the raw KFileItem pointers in KCoreDirListerCache
  • Add 'Mount' option to context menu of unmounted device in Places
  • Add a 'Properties' entry in the places panel context menu
  • Fix warning "macro expansion producing 'defined' has undefined behavior"


  • Fix missing items in static builds
  • basic support for hidden pages
  • load icons from proper icon themes
  • (many other fixes)


  • More useful error messages


  • Fixed a crash caused by bad lifetime management of canberra-based audio notification (bug 398695)


  • Fix Cancel being not handled in deprecated BrowserRun::askEmbedOrSave
  • Port to undeprecated variant of KRun::runUrl
  • Port KIO::Job::ui() -> KJob::uiDelegate()


  • Add KWayland virtual desktop protocol
  • Guard data source being deleted before processing dataoffer receive event (bug 400311)
  • [server] Respect input region of sub-surfaces on pointer surface focus
  • [xdgshell] Add positioner constraint adjustment flag operators


  • API dox: fix "Since" note of KPageWidgetItem::isHeaderVisible
  • Add a new property headerVisible


  • Do not compare iterators returned from two separate returned copies


  • Take 1..n KMainWindows in kRestoreMainWindows


  • Add missing ipv4 setting options
  • Add vxlan setting

Plasma Framework

  • revert icons scaling on mobile
  • Support mnemonic labels
  • Remove PLASMA_NO_KIO option
  • Properly look for fallback themes


  • Set Dialog flag for JobDialog


  • [solid-hardware5] List icon in device details
  • [UDisks2] Power down drive on remove if supported (bug 270808)


  • Fix breakage of language guessing


  • Add missing README.md file (needed by various scripts)

Syntax Highlighting

  • z/OS CLIST file syntax highlighting
  • Creating new syntax highlighting file for Job Control Language (JCL)
  • Remove open mode from too new Qt version
  • inc version + fixup required kate version to current framework version
  • keyword rule: Support for keywords inclusion from another language/file
  • No spell checking for Metamath except in comments
  • CMake: Add XCode related variables and properties introduced in 3.13
  • CMake: Introduce new features of upcoming 3.13 release

Security information

The released code has been GPG-signed using the following key: pub rsa2048/58D0EE648A48B3BB 2016-09-05 David Faure <faure@kde.org> Primary key fingerprint: 53E6 B47B 45CE A3E0 D5B7 4577 58D0 EE64 8A48 B3BB

Installing binary packages

On Linux, using packages for your favorite distribution is the recommended way to get access to KDE Frameworks. Binary package distro install instructions.

Compiling from sources

The complete source code for KDE Frameworks 5.52.0 may be freely downloaded. Instructions on compiling and installing KDE Frameworks 5.52.0 are available from the KDE Frameworks 5.52.0 Info Page.

Building from source is possible using the basic cmake .; make; make install commands. For a single Tier 1 framework, this is often the easiest solution. People interested in contributing to frameworks or tracking progress in development of the entire set are encouraged to use kdesrc-build. Frameworks 5.52.0 requires Qt 5.8.

A detailed listing of all Frameworks and other third party Qt libraries is at inqlude.org, the curated archive of Qt libraries. A complete list with API documentation is on api.kde.org.


Those interested in following and contributing to the development of Frameworks can check out the git repositories, follow the discussions on the KDE Frameworks Development mailing list and contribute patches through review board. Policies and the current state of the project and plans are available at the Frameworks wiki. Real-time discussions take place on the #kde-devel IRC channel on freenode.net.

You can discuss and share ideas on this release in the comments section of the dot article.

Supporting KDE

KDE is a Free Software community that exists and grows only because of the help of many volunteers that donate their time and effort. KDE is always looking for new volunteers and contributions, whether it is help with coding, bug fixing or reporting, writing documentation, translations, promotion, money, etc. All contributions are gratefully appreciated and eagerly accepted. Please read through the Donations page for further information or become a KDE e.V. supporting member through our new Join the Game initiative.

About KDE

KDE is an international technology team that creates free and open source software for desktop and portable computing. Among KDE's products are a modern desktop system for Linux and UNIX platforms, comprehensive office productivity and groupware suites and hundreds of software titles in many categories including Internet and web applications, multimedia, entertainment, educational, graphics and software development. KDE software is translated into more than 60 languages and is built with ease of use and modern accessibility principles in mind. KDE's full-featured applications run natively on Linux, BSD, Solaris, Windows and macOS.

Trademark Notices. KDE® and the K Desktop Environment® logo are registered trademarks of KDE e.V. Linux is a registered trademark of Linus Torvalds. UNIX is a registered trademark of The Open Group in the United States and other countries. All other trademarks and copyrights referred to in this announcement are the property of their respective owners.

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