As described in the earlier posts, this version offers a cleaner item panel, and will sync multilingual variants added to MLZ records. The awkward right-click widget in the “Extra” field has been removed, as it is no longer needed. This latest version will be documented in the MLZ book, which I hope to bring out via Amazon CreateSpace within the next month.
The new client contains migration code that should convert existing MLZ records, and update their timestamps so that they will be pushed to the Zotero server on the next sync of the client. The new client is database-incompatible with official Zotero, but both MLZ and official Zotero can be synced to the same library data, in the event that reverse-migration is required.