where did reports go? Thjey used to be in my sidebar and I can find where to add this back in.

[Christa Bustillos]

Here is what I had before:

Kanban Board

Releases

Reports 

Issues

Etc

[Lucas Modzelewski _Lumo_]

In new UI, the project navigation is horizontal, it was something introduced in business projects earlier.

Check it here:
https://support.atlassian.com/jira-software-cloud/docs/what-is-the-new-navigation-in-jira/#Horizontal-project-navigation