Qt-opensource-windows-x86-5.15.2.exe May 2026
The qt-opensource-windows-x86-5.15.2.exe file is the final public patch release of the Qt 5.15 series, providing a stable, feature-rich, and backward-compatible environment suitable primarily for maintaining legacy projects. While it marks the end of public open-source binaries, offering 176 bug fixes and Qt Quick 3D, its standard commercial support ends in May 2025, making it a critical "stepping stone" for migration to Qt 6. For more details, visit Qt Blog . Extended Security Maintenance for Qt 5.15 begins May 2025
This preparation piece provides a general overview. For detailed instructions and considerations specific to your use case, further research or consultation with Qt documentation and Qt experts may be necessary. qt-opensource-windows-x86-5.15.2.exe
176 bug fixes
Released on November 20, 2020, Qt 5.15.2 was primarily a maintenance update. It did not introduce new features but provided over the previous version. The qt-opensource-windows-x86-5
Part 6: Building Your First 32-bit Application
- Qt Account documentation – https://doc.qt.io/qt-5.15/qt-account-getting-started.html
Offline installer
| Aspect | Qt 5.15.2 (with this EXE) | Qt 6.5+ LTS | |--------|----------------------------|--------------| | | ✅ Yes, standalone | ❌ No (online installer or commercial-only offline) | | Windows 7 support | ✅ Full | ❌ No (requires Windows 10 1809+) | | qmake support | ✅ Stable | ❌ Removed (CMake only) | | Open source binaries | ✅ Direct download | ⚠️ Requires Qt Account login | | C++ standard | C++17 | C++20 / C++23 | | New modules | Qt Lottie, Qt PDF (old) | Qt Quick 3D Physics, Qt HTTP Server | | Security updates | Community backports | Official LTS (commercial) or limited open-source | | Android support | Stable (API 21-29) | API 23+ only | Qt Account documentation – https://doc
The Installation Walkthrough
Using Qt Creator:
Last tip
: Even if you are on 64-bit Windows today, keep this installer handy. Docker containers, Wine compatibility layers, and embedded IoT devices often still demand x86. Qt 5.15.2 delivers.