BUGS BUGS and BUGS!

I had no problem with the previous version. But as always stupid Apple policy forced me to update. And now all I can say is bugs! Not me in my code but in their Xcode. some of my windows are dispaeared after I used two monitors. Everytime I open the project it only shows me one file. No matter what I do to change the view to sea the tree and debugging area, it doesn’t work.
Thank you Apple!

EDIT: After the new version was out I downloaded the updates because I was so naive to think the bugs were solved. Not only there were much more bugs in the new updates it was 10 times slower. Deleted that immediatelty and rollbacked to version 6.0. Everything is fine and smooth after that.

Just 1 piece of advice: if you have no problem with the older version, DONT DOWNLOAD THE NEW VERSION!!!

PS. Thanks Apple for putting shine effects and pretty buttons (the damn UI) ahead of performance in your list as always.

Mojtaba k about Xcode, v6.2