1. Checking and changing issue status
The status of an issue can be found in the "Change Status" panel on the right hand side of the issue detail page.
As an issue progresses, you can select a new status in this panel and click the "Submit" button to update.
2. Changing status with comments
You can also change an issue status in the comment field.
When you add a comment, you will have the option of selecting a new status as well as a new assignee.