The changes plugin does a good job of showing summary of changes in a release. What would be a nice extension is to add a table at the start of the report that indexes the releases, so the user can click on a release and be taken to the details - and so they can see a list of releases with dates in one place rather than having to page through it.
I've implemented the change I proposed. What this basically does is add a table at the top of the Changes report listing the releases (one row per release), with hyperlinks to the detail of the release. It allows a better way of navigating the release information (IMHO).
What you can do with this version is add an extra attribute "description" to each "release" tag giving a summary description of the release. This is then displayed in the summary table. Works for me.