It's not possible to see feature list in shipped release at all. Searching for features doesn't bring it up either. If this tools comes to replace PRD/ERD - deleting any record of implemented features is not a good idea.
|Release time frame|
Thank you for your idea. The global search (in the top right corner of the main navigation bar) will search all features -- including shipped features. For the use case you mentioned -- finding past features to determine which release they were shipped in, we would recommend using the global search.