WTF...just upgrade to 4.0 and entire hierarchy is deleted??

Great. In v3 I couldn’t access the Asset Store at all so I finally upgrade to v4.0, and it starts with a new default Scene instead of one of my prior scenes. Clicking on my prior Scenes didn’t load them…had to save and delete the new Scene first.

Please QA these releases better…

Unsure how I feel about this new separate hieararchy foldering system…

Hmmm…my Mesh Filter says “Missing Mesh” now. Any idea what that means?

Means that the upgrade of the mesh failed. Check its import settings and have it reimported if its supported any longer.
Unity 4 is a new major version, not an update. So things change which means that you need to port part of your project, its not just ‘import and fine’

As for the hierarchy: you can click in the top right dropdown menu (looks like a bunch of lines) of the hierarchy and switch it to the one column layout. Then its the same as the old one. You don’t have to use the new higher productivity one if you don’t have the time to learn it right now.