Unfortunately there is no version information (Major: 10, Minor: 2, Patch 6 -> 10.2.6) available neither during compile time nor during runtime.
Example:
(taken vom qglobal - Qt5.4)
    #define QT_VERSION_STR  "5.4.1"
    //  QT_VERSION is (major << 16) + (minor << 😎 + patch.
    #define QT_VERSION 0x050401
    //  can be used like #if (QT_VERSION >= QT_VERSION_CHECK(4, 4, 0))
    #define QT_VERSION_CHECK(major, minor, patch) ((major<<16)|(minor<<8)|(patch))
How shall i make code compatible to 10.2.3, 10.2.5 and 10.2.6 keeping the api modification in mind.....
Thanks