md5sum qt-opensource-linux-x64-5.15.2.run Compare the output with the contents of the .md5 file.
https://download.qt.io/archive/qt/5.15/5.15.2/qt-opensource-windows-x86-5.15.2.exe Note: The same filename contains both MinGW and MSVC options during installation.
alongside each file is a .md5 or .sha1 file. On Linux/macOS:
brew install qt@5 This installs the latest Qt5 (likely 5.15.x). Pin it to prevent auto-upgrade. qt5.15 download
https://download.qt.io/archive/qt/5.15/5.15.2/single/ Look for qt-everywhere-src-5.15.2.tar.xz .
Ubuntu 20.04 LTS has Qt 5.15.2 in its official repos:
git clone https://code.qt.io/qt/qt5.git cd qt5 git checkout 5.15 perl init-repository md5sum qt-opensource-linux-x64-5
Compile with:
https://download.qt.io/archive/qt/5.15/5.15.2/qt-opensource-mac-x64-5.15.2.dmg
Verify the tag signature:
https://download.qt.io/archive/qt/5.15/5.15.2/qt-opensource-linux-x64-5.15.2.run Download the file, make it executable on Linux/macOS ( chmod +x filename ), and run it. You'll still need a Qt account login. C. Source Code (For advanced users, cross-compiling, or custom builds) If you want the absolute latest Qt 5.15 patch level (e.g., 5.15.12+), you must build from source.
By following this guide, you will successfully download and install Qt 5.15 regardless of your platform or license type. Remember: the golden rule of Qt 5.15 open-source access is .