Currently, when you create a Feature Roadmap, selecting a Sub-Release of a Master Release does not cause said Sub-Release to appear on the roadmap. Ideally, they should appear, but at worst the choices should not appear in the Release selector.
|Release time frame|
Thank you for your idea. Currently sub-releases do show on the releases roadmap, grouped within the master release. You can find more details on how to setup portfolio releases and see an example of the resulting features roadmap in the screenshot at the very bottom of this article.