Since I have installed V9, it is a litany of disasters.
Auto-numbering does not work and makes a mess in the numbering.
Updating a finished design from earlier versions creates links in unrelated nets !
The program closes unexpectedly, leading the redo the same work again and again.
The error reports contains nonsense. (e.g. "R49 is renamed R49"), which leads to design bugs that you have to correct by killing those parts; transferring to PCB, place the parts anew, transfer to PCB ... and redo all the copper.
There is more but I can't remember all the silliness I encountered.
Today, I have a complete design which refuses to open and closes the app abruptly. The safety copy does the same.
This app which was OK in V8 is now unreliable in V9 and definitely not fit for real work.
I'm stuck with designs whose files are unfortunately updated to V9.
If I knew what the pain it would be, I would have try finding a V8 to put on my new laptop :-(
I created tens of components in my library, I cannot spend weeks migrating to another app.
I need a solution.