I've been playing KSP since about 0.22. I've been having a bunch of problems since 1.0 though, where I cannot even get into orbit.
The major issue is that with every rocket design, when it comes to gravity turn, the rocket goes into an uncontrollable spin in that direction- the command pod torque seems to do nothing now. I tried adding several reaction wheels (like, 10 at the top of the rocket), but it had no measurable effect. I added some of the wings, which seem to help keeping the craft stable but only when it's going up- when trying to stably turn the rocket in-atmosphere they don't seem to help.
It seems somewhat to me like the controls just aren't working properly. If you're going straight up, and you push left or right, the whole craft wobbles tremendously because 10 consecutive reaction wheels are not a good structural element and you're applying a lot of torque. But when the craft is spinning, there's no wobbling at all and pushing the keys has absolutely no effect.
What's the cause of this huge change in stability mechanics and how can I adapt my older rocket designs?