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Qt 5.9.3 Released

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I am pleased to inform that Qt 5.9.3 is released today. As a patch release Qt 5.9.3 does not add any new functionality, focus is in bug fixes and performance improvements.

Compared to Qt 5.9.2, the new Qt 5.9.3 contains over 100 bug fixes and in total more than 500 changes since Qt 5.9.2. For details of the most important changes, please check the Change files of Qt 5.9.3.

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More From Qt This Afternoon

  • Security advisory about Qt for Android

    Two vulnerabilities have been identified in Qt for Android which could be used by a malicious application to hijack an existing Qt for Android application on the same device. The vulnerabilities in question were found by JPCERT Coordination Center, and have been assigned the following vulnerability IDs: JVN#27342829 and JVN#67389262.

  • Qt Creator 4.5 RC released

    We are happy to announce the release of Qt Creator 4.5 RC!

    We think that we are pretty close to what we want to release as Qt Creator 4.5.0, so please take this opportunity to give us final feedback through the bug tracker, our mailing list, or on IRC (#qt-creator on For information about the new features and improvements in this version, please have a look at the beta blog post or our change log.

More on Qt Release

  • Qt 5.9.3 Packs More Than 500 Changes, Fixes Security Issues for Android Port

    The Qt Company, through Tuukka Turunen, announced today the third maintenance and stability update to the latest Qt 5.9 LTS open-source and cross-platform application framework.

    While Qt 5.9.3 does not add any new functionality to the long-term supported Qt 5.9 series, it would appear to be a major bugfix release that adds more than 500 changes compared to the previous update, Qt 5.9.2, which is currently used by default in various Linux-based and other operating systems.

  • Qt 5.9.3 Released With Fixes & Performance Improvements

    The Qt Company has issued Qt 5.9.3 as the latest tool-kit update in the Qt 5.9 Long-Term Support series.

    As is standard practice for Qt point releases, no new functionality is presented by Qt 5.9.3 but there are bug fixes and performance improvements. There are more than 100 bug fixes for this latest update and more than 500 changes in total since Qt 5.9.2. There are also security fixes, noted are two vulnerabilities being addressed for Qt on Android.

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Blockchain: DigitalBits, Aventus, Cryptocurrency

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    Their value — or at least their versatility — could get a boost if The DigitalBits Project is successful. This community endeavor, soon to become a nonprofit foundation based out of the tiny European country of Lichtenstein, is today launching an open-source blockchain-based infrastructure that supports trading loyalty points or rewards or transferring them to other individuals.
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today's howtos

Fedora: Release Party, Fedora Diversity, Critical Firefox Fix

Microsoft Openwashing and Revisionism

  • Microsoft joins effort to cure open source license noncompliance [Ed: Pushing Microsoft lies under the false pretenses that Microsoft plays along with the GPL (it violates, smears and undermines it)]
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    It's kind of amazing that just over a decade ago, Microsoft was threatening Linux vendors by claiming free and open-source software infringed on 235 of Microsoft's patents. In 2007, Microsoft was very openly and publicly anti-GPLv3, claiming it was an attempt "to tear down the bridge between proprietary and open source technology that Microsoft has worked to build with the industry and customers."
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    The six have committed to extending additional rights "to cure open source license noncompliance". The announcement was made by Red Hat, which says the move will lead to greater cooperation with distributors of open source software to correct errors. In a statement, Red Hat referenced widely used open source software licenses, GNU General Public License (GPL) and GNU Lesser General Public License, which cover software projects including the Linux kernel. GPL version 3 offers distributors of the code an opportunity to correct errors and mistakes in license compliance.
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    According to a Red Hat press release this morning: "six additional companies have joined efforts to promote greater predictability in open source licensing. These marquee technology companies—CA Technologies, Cisco, HPE, Microsoft, SAP, and SUSE—have committed to extending additional rights to cure open source license noncompliance. This will lead to greater cooperation with distributors of open source software to correct errors and increased participation in open source software development."