In Advanced Roadmaps, when you select the start date of a release as "As early as possible" and end date as "After all issues are completed", the timeline doesn't show the dates of the release.

In Portfolio 2.0, you could see the release regardless of whether it was fixed or dynamic, and when dynamic it would always be green but could at least easily tell when that date is set to.

Having this visible helps to understand and easily identify when the release should be completed.