I have a clean installation of 9.02 (RC3) dated September 2, 2016. Tomorrow I will update. First experiences good! Meanwhile, I turned Septenary theme. It also works SEO ... It also works Nebola theme and page Custom Page-1, but it is incomplete. I see you tomorrow for another update on September 3, 2016
The surprise is perfect editing in NEWS + Gallery.
Update 07.09.2016: Solved!!! News not running because were missing when copying an old DB newly introduced tables infusions_news for RC5: Line 17 - news_image_full_default Line 18 - news_image_front_default.