How to find Version of Qt?

Question

How do I know which version of Qt I am using? When I open Qt Creator it shows \"Welcome to Qt Creator 2.3\". In the build setting, however, it shows Qt Version 4.7.1.

Answer 1

You can use qmake -query QT_VERSION:

➜  ~ qmake -query QT_VERSION
4.8.7

➜  ~ Qt/5.15.0/gcc_64/bin/qmake -query QT_VERSION
5.15.0

➜  ~ qt-6.0.0/bin/qmake -query QT_VERSION
6.0.0