First-run information dialog for new versions
Just a thought: it might be useful to users who are installing a new version of the plugin to know what actions they need to undertake and what changes will affect their workflow. Even though I write about such cases in the release notes, I doubt people read them. What prompted this thought is that the Tycho publishes the plugin under a different feature ID, which looks like it will cause two instances of MercurialEclipse to be present in the Eclipse installation. If the new version is capable of detecting the old feature name, the user could be warned so that they can take the appropriate action.