- Qt 6.4
- License Changes
- Qt 6.4.3 Reference Documentation

# License Changes

Changes in Qt and Third Party Modules released with Qt that are relevant to licensing.

## Qt 6.4.3

### Qt Core Module

- PCRE2 was updated to version 10.42.
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.42.

### Qt GUI Module

- LibJPEG-turbo was updated to version 2.1.5.
- Freetype 2 was updated to version 2.13.0.
- HarfBuzz-NG was updated to version 7.0.1.

### Qt Image Formats

- TIFF Software Distribution (libtiff) was updated to version 4.5.0.
- WebP (libwebp) was updated to version 1.3.0.

### Qt SQL Module

- SQLite was updated to version 3.41.0.

## Qt 6.4.2

### Qt Core Module

- Data Compression Library (zlib) was updated to version 1.2.13.

### Qt GUI Module

- LibPNG was updated to version 1.6.39.

## Qt 6.4.1

### Qt GUI Module

- LibJPEG-turbo was updated to version 2.1.4.
- LibPNG was updated to version 1.6.38.

### Qt Testlib Module

- Catch2 was updated to version 2.13.10.

### Qt Tools Module

- Catch2 was updated to version 2.13.10.

## Qt 6.4.0

### Qt Core Module

- Gradle wrapper was updated to version 7.4.2.
- Unicode Common Locale Data Repository (CLDR) was updated to version 41.

### Qt Imageformats Module

- WebP (libwebp) was updated to version 1.2.4

### Qt Network Module

- libpsl - C library to handle the Public Suffix List version 664f3dc85259ec65e30248a61fa1c45b7b0e4c3f under "BSD 3-clause "New" or "Revised" License is now documented.

### Qt Multimedia Module

- Eigen version 3.4.0 under Mozilla Public License 2.0 and BSD 3-Clause "New" or "Revised" License is now documented.
- pfft version 7c3b5a7dc510a0f513b9c5b6dc5b56f7aeeda422 under BSD 3-Clause "New" or "Revised" License is now documented.
- Resonance Audio version e225aedb5ec76ca6a0fe7079c0b84dbcbb490553 under Apache License 2.0 is now documented.

### Qt Quick3D Module

- Open Asset Import Library was updated to version 5.2.3.
- Intel Embree version 3.13.3 under Apache License 2.0 is now documented.
- Tiny OpenEXR version 1.0.1 under BSD 3-clause "New" or "Revised" License is now documented.
- xatlas was updated to version 16ace528acd2cf1f16a7c0dde99c42c486488dbe.
- ProceduralSky under MIT License is now documented.

### Qt Quick3DPhysics Module

- NVIDIA PhysX SDK version PhysX_4.1.2.29882248 under BSD 3-clause "New" or "Revised" License is now documented.

### Qt Tools Module

- Catch2 version 2.13.9 under Boost Software License 1.0 is now documented.

### Qt Wayland Module

- Wayland Text Input Protocol v1 version unstable v1 under MIT License is now documented.

## Qt 6.3.2

### Qt GUI Module

- Freetype 2 was updated to version 2.12.1.

### Qt SQL Module

- SQLite was updated to version 3.39.2

## Qt 6.3.1

### Qt Core Module

- PCRE2 was updated to version 10.40.
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.40.
- The Public Suffix List was updated to version d17a65633b0286833727ef21e897a22564695ef5.

### Qt GUI Module

- HarfBuzz-NG was updated to version 4.2.1.

## Qt 6.3.0

### Qt Core Module

- Efficient Binary-Decimal and Decimal-Binary Conversion Routines for IEEE Doubles was updated to version 3.2.0+e634f265db5d296bd7a780f9813d6b8573f5bd90.
- Usage of FreeBSD strtoll and strtoull was removed.
- Gradle wrapper was updated to version 7.4.0.
- TinyCBOR was updated to version 0.6.0.
- Data Compression Library (zlib) was updated to version 1.2.12.
- Unicode Character Database (UCD) was updated to version 28.

### Qt GUI Module

- HarfBuzz-NG was updated to version 3.0.0.
- LibJPEG-turbo was updated to version 2.1.3.

### Qt Imageformats Module

- WebP (libwebp) was updated to version 1.2.2

### Qt Quick3D Module

- Open Asset Import Library was updated to version 5.1.6

### Qt Wayland Compositor Module

- Wayland Protocol was updated to version 1.19.0
- Usage of Wayland Text Input Protocol version unstable v4, WIP under HPND license is now documented.
- Usage of Wayland xdg-activation Protocol version unstable v1, version 1 under MIT license is now documented.
- Usage of Presentation Time Protocol version 1 under MIT license is now documented.

## Qt 6.2.4

### Qt Core Module

- The Public Suffix List was updated to version c7fe8ddee7f4e16095e51fbc3dd72f18b7a8567d.

### Qt SQL Module

- SQLite was updated to version 3.37.2

### Qt Testlib Module

- Catch2 was updated to version 2.13.8.

## Qt 6.2.3

### Qt SQL Module

- SQLite was updated to version 3.37.0

## Qt 6.2.2

### Qt Core Module

- Gradle wrapper was updated to version 7.2.0
- PCRE2 was updated to version 10.39
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.39

## Qt 6.2.1

### Qt Core Module

- PCRE2 was updated to version 10.38
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.38

## Qt 6.2.0

### Qt Core Module

- extra-cmake-modules was updated to version 5.84.0
- Gradle wrapper was updated to version 6.8.3

### Qt GUI Module

- Freetype 2 was updated to version 2.10.4
- HarfBuzz-NG was updated to version 2.9.0
- LibJPEG-turbo was updated to version 2.1.1

### Qt Imageformats Module

- WebP (libwebp) was updated to version 1.2.1

### Qt Positioning Module

- Clipper Polygon Clipping Library was updated to version 6.4.2.
- Usage of Clip2Tri Polygon Triangulation Library under MIT license is now documented.
- Usage of Poly2Tri Polygon Triangulation Library under BSD 3-clause "New" or "Revised" license is now documented.

### Qt Quick3D Module

- Usage of Shadow values from Angular Material under MIT license is now documented.

### Qt Quick Controls Module

- Usage of xatlas version a8ffc484335ecc3819c69e1749f142e75e03acdf under MIT license is now documented.

### Qt SQL Module

- SQLite was updated to version 3.36.0

### Qt Wayland Compositor Module

- Usage of Wayland Pointer Gestures Protocol version unstable v1, version 2 under MIT license is now documented.

## Qt 6.1.2

### Qt Core Module

- BLAKE2 (reference implementation) was updated to version 54f4faa4c16ea34bcd59d16e8da46a64b259fc07.
- PCRE2 was updated to version 10.37.
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.37.
- Unicode Common Locale Data Repository (CLDR) was updated to version 38.
- The Public Suffix List was updated to version d4e247a71d1b6da08dad906b098c818493166fcc.

### Qt GUI Module

- MD4C was updated to version 0.4.8.

### Qt Image Formats

- TIFF Software Distribution (libtiff) was updated to version 4.3.0.

## Qt 6.1.1

### Qt GUI Module

- LibJPEG-turbo was updated to version 2.1.0.

### Qt Shadertools Module

- SPIRV-Cross was updated to version d137abeef57b2f3fdbdab0ad5590fe99a44ba546.

### Qt SQL Module

- SQLite was updated to version 3.35.5.

## Qt 6.1.0

### Qt 3D Module

- Usage of Assimp - Clipper was removed.
- Usage of Assimp - irrXML was removed.
- Usage of Assimp - Open3DGC was removed.
- Usage of Assimp - The OpenDDL-Parser was removed.
- Usage of Assimp - Poly2Tri Polygon Triangulation Library was removed.
- Usage of Assimp - RapidJSON was removed.
- Usage of Assimp - Unzip was removed.
- Usage of Assimp - Utf8Cpp was removed.
- Usage of Assimp - Zip was removed.

### Qt Core Module

- Efficient Binary-Decimal and Decimal-Binary Conversion Routines for IEEE Doubles was updated to version 3.1.5-30-gbf46072.
- PCRE2 was updated to version 10.36.
- PCRE2 - Stack-less Just-In-Time Compiler was updated to version 10.36.
- The Public Suffix List was updated to version f2cce86a42f38265c67caa32c6e0ff61793bb534, fetched on 2021-01-21.

### Qt GUI Module

- HarfBuzz-NG was updated to version 2.8.0.
- LibJPEG-turbo was updated to version 2.0.6.
- MD4C was updated to version 0.4.7.
- Vulkan Memory Allocator was updated to version 2.3.0.
- Vulkan API Registry was updated to version 1.2.166.

### Qt Imageformats Module

- TIFF Software Distribution (libtiff) was updated to version 4.2.0.
- WebP (libwebp) was updated to version 1.2.0.

### Qt SQL Module

- SQLite was updated to version 3.35.2.

### Qt Shadertools Module

- glslang was updated to version 11.1.0.
- SPIRV-Cross was updated to version 2020-09-17.

## Qt 6.0.1

### Qt Core Module

- PCRE2 was updated to version 10.36.
- CRE2 - Stack-less Just-In-Time Compiler was updated to version 10.36.

## Qt 6.0

### Qt Core Module

- Unicode Common Locale Data Repository (CLDR) got updated to upstream version v38.
- The copy of the The Public Suffix List got updated on 2020-11-05.

### Qt GUI Module

- MD4C was updated to version 0.4.6.

### Qt 3D Module

- Open Asset Import Library was updated to 5.0.1

## Previous Qt Versions

To see license change information for Qt 5.15 and earlier, see https://doc.qt.io/qt-5.15/license-changes.html.