this post was submitted on 02 Apr 2025
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Qt 6.9 released (www.qt.io)
submitted 2 days ago by [email protected] to c/linux
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Qt 6.9 is here! This release brings exciting innovations, enhanced graphics performance, and new platform capabilities to help you build exceptional applications.

Highlighted improvements in Qt 6.9 include:

  • Qt Graphs: Interactive 2D panning, zooming, and dynamic 3D graph injection. Printing support now available!
  • Qt Quick: GPU-accelerated SVG animations and Variable Rate Shading for improved graphics performance.
  • Qt Quick Controls: New context menu support enhances desktop integration and user experience.
  • XR Enhancements: Haptic feedback added for creating richter immersive virtual interactions.
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[–] [email protected] 3 points 2 days ago* (last edited 2 days ago)

Qt is still the only excellent cross-platform desktop GUI framework.

It's a pity that its current custodian's commercial licenses:

  • are subscriptions
  • are painfully expensive for a solo developer or small group
  • have a reputation for triggering legal threats and badgering from The Qt Company if one ever wants to end their subscription or (separately) use the open-source license for a FOSS project

This situation makes me afraid to use their commercial offerings, which in turn means they won't get any money from me at all; I feel that I can safely use their libs only in open-source code. Their business model is their decision, of course, but I can't help wondering if their whale-hunting approach actually nets them more money than a more accessible, lower-cost, one-time (or one-major-version) license option would. In many other industries, high sales volume reaps more profits than high price.

Thank goodness for the KDE Free Qt Foundation.