Each milestone groups the tickets that were planned for a release. The progress figure is the share of closed tickets. At the point the archive was frozen, no dates had been set for either milestone.
First Maven release. The milestone tracked the conversion from the Ant build to the new module layout, together with the removal of features that were no longer used.
Tickets that were accepted but not assigned to a release. The original roadmap grouped them under this unnamed milestone so that they stayed visible.
A milestone had a name, an optional date and a description. Tickets were assigned to it from the ticket editor. Closing a ticket updated the progress bar automatically, which is why the roadmap could show a percentage without anyone maintaining a separate status page.
The 2.0.0 release notes describe the module layout that the milestone was tracking. The timeline shows the ticket and repository activity around it.
