Update all Projects after changing gitlab.rb file

Hello everyone,

I did some changes on the gitlab.rb file (Setting some project features to false) and noticed after reconfigure and reset, that this changes effects only new created projects. How can I update all the existing projects based on the new gitlab.rb file?

That only sets the settings for new projects. For existing, you would have two options - change in the web interface for each of the projects, or use the API which would be faster.

https://docs.gitlab.com/ee/api/

should help you with finding the appropriate commands for changing project settings