1. To show or hide resolved tasks, open the Tasks tab in the left navigation bar.
2. Then open the Spaces list and turn on the Resolved toggle under the Views section.
If you are not on the Tasks tab (eg. the Releases tab), then open the Filters pane and turn on the Resolved toggle to see the list of resolved tasks.
3. To look at which statuses are considered resolved, go to the project settings. Click the Statuses tab to see which statuses are resolved or to change the status.
Keep in mind: Having a resolved status doesn’t necessarily mean a task is in a completed release. When completing a release, you will be asked which release the unresolved tasks should be moved to (or no release at all)