Filterable versions in dropdowns (target version and custom version fields on issues)
We need to be able to filter the version dropdowns to be able to differentiate between sprints and normal release versions. There would be a custom field for issues where you can either select the release or the sprint and use the target version for the other. Ideally it would be done with a filter by a custom version field. In the custom issue field with type version you need to be able to filter based on custom fields of the versions.
We have patched our redmine to create a new version status "sprint" which we use to filter, but that is kinda ugly.