Good question - I haven’t seen one posted for SU9 either. Zendesk still has a general one, but it hasn’t been updated since March.
CORRECTION - after posting this, I noticed the URL has changed and it now shows updated today! Maybe my browser had a cached version of the page…
Further update - the top SU9 issues are described in the latest development update, release today:
My earlier comments about bugs “well-known to the community” was more of a reference to things you can frequently see posted here in the forums. Things like the controls locking whole holding right-mouse to pan the view, or past bugs like TrackIR turning itself off, the mouse cursor disappearing, or the cursor getting stuck in VR such that all pop-up panels were unusable.
Those kinds of strange bugs creep in with a Sim Update, then get fixed one or two updates later. Most people run into them at some point, and most learn to live with them until they’re resolved. But they do add a small level of frustration.