Houdini 22.0 What’s new What’s new in Houdini 22

What’s new Platforms

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Fundamental Architecture

These changes affect all platforms and architectures.

  • New math library based on algorithms from the CORE-MATH project

    • Provides increased performance and numerical stability for every operation in the application.

    • All results are now correctly-rounded, meaning they're as accurate as possible given the storage constraints of IEEE 754 floating-point numbers.

  • New memory allocators that are carefully selected for each OS.

    • Provides increased performance and decreased memory consumption. Especially evident on Windows, where memory consumption can be greatly reduced.

Linux

  • New Technical Preview build for Linux on Arm platforms. This helps with reduced cloud computing costs alongside higher energy efficiency and performance.

    Note

    Currently there’s no support for FBX in the Linux arm64 build.

macOS

  • Dropped the Intel Mac (x86_64) builds.

Windows

  • Houdini is now built with the Windows SDK 10.0.22621.0 as per the VFX Platform CY2026 specification.

VFX Reference Platform

  • Houdini 22.0 targets the VFX Platform CY2026 specification (https://www.vfxplatform.com).

  • Upgraded Boost to 1.88.0.

  • Upgraded Imath to 3.2.2.

  • Upgraded NumPy to 2.3.2.

  • Upgraded OpenColorIO to 2.5.0.

  • Upgraded OpenEXR to 3.4.3.

  • Upgraded OpenSubdiv to 3.7.0.

  • Upgraded OpenVDB to 13.0.

  • Upgraded PySide6 to 6.8.3.

  • Upgraded Python to 3.13.10. Python 3.11 available as a separate build.

  • Upgraded Qt to 6.8.3.

  • Upgraded the C++ API to C++20.

  • Upgraded the Linux build to gcc 14.2. Linux gcc 11.2 available as a separate build.

  • Dropped the Qt 5 builds.

3rd-party Tools and Libraries

  • Upgraded MaterialX to 1.39.5.

  • Upgraded OpenImageDenoise to 2.3.3.

  • Upgraded OpenSSL to 3.5.2.

  • Upgraded Pillow to 12.1.0.

  • Upgraded USD to 26.05.

  • Upgraded aiohttp to 3.13.3.

  • Upgraded aiosignal to 1.4.0.

  • Upgraded cffi to 1.17.1.

  • Upgraded cgltf to 1.15.

  • Upgraded cryptography to 45.0.6.

  • Upgraded embree to 3.13.5.

  • Upgraded frozenlist to 1.5.0.

  • Upgraded libsass to 0.23.0.

  • Upgraded lxml to 6.0.2.

  • Upgraded matplotlib to 3.10.6.

  • Upgraded multidict to 6.1.0.

  • Upgraded p4python to 2025.1.276.

  • Upgraded pybind11 to 2.13.6.

  • Upgraded pyobjc to 12.1.

  • Upgraded setuptools to 80.9.0.

  • Upgraded usd_adobeplugins to 2026.03.

  • Upgraded yarl 1.22.0.

  • Added Detectron2 0.6.

  • Added Draco 1.5.7.

  • Added OpenJPH to 0.24.5.

  • Added Routed Gothic Font 1.0.0.

  • Added VkFFT 1.3.4.

  • Added aiohappyeyeballs 2.6.1.

  • Added gsplat 1.5.3.

  • Added legacy-cgi 2.6.4 to HQueue.

  • Added libb2 0.98.1.

  • Added libheif 1.21.1

  • Added propcache 0.4.1.

  • Added typing_extensions 4.12.2.

  • Added zipp 0.5.

  • Removed cssutils.

  • Removed materialyoucolor-python.

  • Removed nose.

Python

  • Added separate Houdini Python 3.11 builds.

  • Added Imath and OpenEXR Python bindings.

  • Removed the py23convert utility that was used to convert Python scripts from Python 2 to Python 3.

What’s new in Houdini 22