Upgrading to 0.30.0

The org.occurrent.UpgradeToOccurrent_0_30 recipe handles the mechanical renames, the package moves, and the safe part of the Stream to List write-side migration, plus the module artifact coordinate renames (every artifact now has an occurrent- prefix). If you are upgrading an existing MongoDB deployment, note that stream position is on by default for new stores, but the events already in your collection have none. The store detects this at startup and turns position off for itself rather than triggering a surprise index build on your existing data. Follow the position-backfill runbook and its tool to backfill position onto those old events and use position-based catch-up against them. See the upgrade guide for the full plugin setup and old-to-new artifact mapping.