What about ICU on Windows with Qt 5.7.1 msvc2015?
I've discovered that Qt 5.7.1 installed on Windows does not have icu*.dll files in bin directory.
Does this mean that Qt builds published through Online Installer is built without ICU support?
Or is it built with ICU but I should provide my own compiled ICU libraries for complete functionality? I doubt that Qt has it statically linked, Qt Core would be huge...
OK seems I've solved myself.
Qt uses WinAPI for unicode support on Windows now: