[the_common_man]

Qt's backward compat story is great and not so great. It's BC and sometimes SC but the fact is they keep breaking behavior even in patch releases. If you develop with Qt for a long time, you realize that BC is simply not good enough and you start static linking (a process they have made quite hard with Qt5).

[cm3]

I've noticed that some projects don't link statically anymore with Qt 5.6 but others do. I believe the CMake scripts are insufficient while qmake projects works most of the time but also not always. I haven't figured it out. If you have links with more info, I'd be curious. Also, I take it it's not possible to configure a Qt5 build to produce .so and .a files, or am I wrong?