We've started getting reports of serious performance problem in 0.13.0 we have pulled the release and are falling back to 0.11.2.
I have identified the source of the performance problem, but fixing it will take long enough to warrant yanking 0.13.0, rather than trying to quickly release a patch.
If you need a feature from 0.13.0 (e.g. the OrCAD fix) and can tolerate the performance let us know.
We'll be working to resolve this and release again as soon as we can. We'll also be making some more changes to our dev/test environments to prevent this in future.
Will be in touch