Debugging also got a whole range of improvements and fixes. The CDB engine received some love, and the reworked engine has much improved startup times, especially for consecutive debugging sessions on the same project, and allows you to debug 32 bit and 64 bit applications independently from how many bits Qt Creator has been compiled for. The debugger tool tips are now pinnable. For debugging on Symbian devices we now support the use of the new CODA debugging agent (no more “General OS related error
), have a look at the documentation for how to turn that on. Also, mixed QML/C++ debugging got a big update.