The current version field on mozilla.org is not used at all. There are just too many versions possible. It would be better if it was a text field.
Moving to BZ3.0, Hixie, this should be quite possible out of all the field modularity stuff. This would likely be a good idea for Mozilla as a Build-ID, and we would want to keep Bugzilla the same.
The Bugzilla 3 component is going away. We're going to depend on the Milestones for this. At the time this component was created, we didn't have milestones for Bugzilla.
Text field should be able to have a regexp enforced. Should be able to have a text field for one product and a options field for another. Can't be the same column in a table because text would be text and options would by an option id (so options can be renamed).
Bailing on Bugzilla 3.0 due to too many other commitments.
This would be better implemented as a custom field. *** This bug has been marked as a duplicate of 287328 ***