The difference between qt5.14 and qt5.15

Qt 5.14 and Qt 5.15 are two different Qt versions with some differences and improvements between them.

Here are some changes and improvements in Qt 5.15 compared to Qt 5.14:

1. Performance improvements: Qt 5.15 introduces several performance improvements, including improved rendering performance and reduced memory footprint.

2. Qt 3D: Qt 5.15 brings several enhancements and improvements to the Qt 3D module, including adding more functionality and graphics API support to the backend.

3. QML engine improvements: The QML engine in Qt 5.15 has undergone some optimizations to improve the execution speed and efficiency of QML.

4. Qt Quick Control Set: Qt 5.15 introduces a new set of Qt Quick controls such as RangeSlider, ColorPicker and ComboBox.

5. C++17 support: Qt 5.15 has improved support for C++17, including better support for new features.

6. Toolchain update: Qt 5.15 updates the toolchain used, with upgrades and improvements to the compiler and build system.

7. Platform Support: Qt 5.15 adds support for the latest OS versions such as macOS Catalina and Windows 10.