This is a big item, and there are many opinions. We need to agree on a specific plan.
gpaumier wrote on 2014-04-09 14:15:31 (UTC)
I feel this is covered by the RFC (T50). Either we move to Phabricator and we migrate everything, or we don't move and we keep bugzilla.
There was some discussion on the mailing list about a partial migration (http://thread.gmane.org/gmane.org.wikimedia.teampractices/281). Notably, a scenario where we "shed old skin" and manually migrate only tickets that are relevant was discussed, but my understanding is that there is little support for this proposal.
While I think that hosting one (or more) giant triaging parties before any migration would be really useful, I don't think any scenario where we move to Phabricator and don't migrate all of our bugzilla data is viable. It's tempting to start fresh, but a complete migration is needed, even if only to preserve our technical projects' history and archives.
I think there is sufficient agreement on this topic so I'm closing this task, but we can reopen if needed.