How to Download Old Versions of Qt Creator: A Comprehensive Guide
During the installation process, ensure you select a unique folder (e.g., C:\Qt\QtCreator_Old instead of the default).
To prevent the new and old versions from overwriting each other's configuration files, you can launch Qt Creator with a custom settings path using the -settingspath command-line argument. Important Considerations Qt Creator, how to install older version? - Qt Forum
Choose the correct version from the Qt Download Index .
Whether you are maintaining a legacy codebase, working with older hardware, or simply prefer a specific interface from the past, finding an older version of Qt Creator can sometimes feel like searching for a needle in a haystack. While the main Qt.io download page defaults to the latest releases, the Qt Company maintains an extensive archive for developers who need specific historical builds. Where to Find the Official Archives
The most reliable way to download an older version of Qt Creator is through the official . This repository contains almost every version released over the last decade.
Visit the Qt Creator Archive to browse directories organized by version number. Each version folder typically contains installers for Windows ( .exe ), macOS ( .dmg ), and Linux ( .run ).