libxcb-1.10 has one major library version change, for libxcb-sync.so (from 0 to 1) and qt5 is the only package I could find that uses this particular library.
Changelog: No changes from Qt 5.2.0rc1 is available. * Some header files has chenged its name.
Only tested on NetBSD/amd64 6.99.28. ToDo: * inputmethod/qt5-ibus from Qt5 should be created