So you have updated to 1.5 and something went wrong. Don't panic, report your issue on our forum and we will do our best to help you. Before reporting make sure you have checked the answers to the most common issues with 1.5 update given bellow. This will save your time and nerves.
1. When the auto update will appear in admin panel?
Check this topic for an answer http://www.oxwall.org/forum/topic/1027
2. How to manually update core and plugins?
Documentation can be found at http://docs.oxwall.org/install:update
3. I am getting 500 Error after/during the update.
Before reporting, check this topic http://www.oxwall.org/forum/topic/4661 .
In case of any errors, including 500 one, deactivate all plugins once the core is updated. Some plugins might not be compatible with 1.5, since they were not updated yet. Activate your plugins one by one to find out which one was causing errors on your site.