I upgraded from 4.7 to 5.1 and now the new feature built into the new theme where you can change the color of the theme and site is not working. The color scheme settings don't even display on the configuration page for the theme.
I installed drupal 5.1 as a new install on 2 other websites and it works fine, only having problems with a site that I upgraded.
After performing the upgrade from 4.6 to 4.7.6 I've spotted a few errors in log. I'll be delighted if anyone could give me some clues.
1. misc/drupal.js not found
2. Division by zero in modules/img_assist/img_assist.module on line 825.
3. misc/textarea.js not found
4. modules/img_assist/img_assist.js not found
I have a website that I recently updated from 4.7 to 5.0 and then 5.1.
It's a portal that collects over 100 different RSS feeds and publishes them on the front page via the blocks module.
As soon as I upgraded the website, it slowed down from max of 5 sec to render the page, to min 15 sec. Without any other changes - running on default theme.