<p>Qt 6.11 is out, and the headline additions are a new 2D graphics module and a significant upgrade to its 3D rendering pipeline.</p>
<h2>Qt Canvas Painter</h2>
<p>The new Qt Canvas Painter module brings hardware-accelerated 2D rendering built on Qt’s Rendering Hardware Interface (RHI). It follows the HTML Canvas 2D API, which should feel familiar to anyone coming from web development. Performance is noticeably better than QPainter’s OpenGL backend, which has been showing its age.</p>
<h2>Qt Quick 3D upgrades</h2>
<p>The 3D side gets the most interesting additions. Qt Quick 3D now supports Screen Space Global Illumination (SSGI), Screen Space Reflections (SSR), per-object motion vectors, and advanced render-pass customization through new QML APIs. These are techniques you’d normally associate with game engines, and Qt is leaning into that comparison directly.</p>
<h2>Qt Graphs</h2>
<p>The Qt Graphs module adds multi-axis support for 3D graphs, a new CustomSeries type, and a Wind Turbine Dashboard example to demonstrate the new capabilities.</p>
<h2>Qt TaskTree (technology preview)</h2>
<p>A new Qt TaskTree module introduces a declarative approach to asynchronous C++ workflows. It’s a technology preview, so expect the API to evolve, but the direction is toward making async code easier to reason about without callback chains.</p>
<h2>Other changes</h2>
<ul>
<li>Lottie and SVG animation support has been improved</li>
<li>Qt Quick Controls gets a new DoubleSpinBox</li>
<li>An OpenAPI code generator for Qt HTTP clients</li>
<li>gRPC flow control improvements</li>
<li>Better QML/C++ navigation in IDEs</li>
<li>Android Java/Kotlin interop enhancements</li>
</ul>


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Qt 6.11 has been released with two major additions: the Qt Canvas Painter module, which brings hardware-accelerated 2D rendering via Qt's RHI following the HTML Canvas 2D API, and significant Qt Quick 3D upgrades including Screen Space Global Illumination, Screen Space Reflections, and per-object motion vectors — features typically found in game engines. Other highlights include multi-axis 3D graph support in Qt Graphs, a new declarative async workflow module (Qt TaskTree, in technology preview), an OpenAPI code generator for HTTP clients, gRPC flow control improvements, and enhanced Android Java/Kotlin interop.

Qt 6.11 adds hardware-accelerated 2D rendering and game engine-level 3D features