Features show original release

After I ship a release and move features to a later release, I want to see what release my feature was supposed to ship in, so I can understand how well we are hitting our release targets so we can plan future releases better.

It should be an editable field so I can correct it if it's wrong or set it manually retrospectively.

When I ship a release, it should give me the option to set this release as the "original release" for any features that are not done and have a blank "original release".