I've just uploaded a public beta of Zen 1.6 (PC, OSX version later today).
This one should fix some of the remaining issues found in 1.5.3, and also adds a bunch of new features:
* Drastic (x10) performance improvements in the search queries
- I have completely rewritten the search queries, this time using SQLite temporary tables features. The speedup is absolutely impressive !
* Support for all, and any, vsti plugin.
- All users can now activate any plugin locally. For designers, the first preset uploaded for a local plugin makes this plugin public.
* Add search results sort options: by ratings + name, by ratings + date, by name, by date
- They are both located in the top right corner.
- I've posted about it in the features requests thread. It is next to the current preset name, in the lower right part.
- This should be straightforward to use - just click on a star to set your ratings. If you have set a rating for a preset, this is the one Zen displays, and uses for sorting presets. Otherwise it uses a bayesian average from ratings submitted by all other users. Bayesian average means that the average is weighted, based on the number of users who submitted ratings.

Your own ratings are displayed with 6-branches stars, while server ratings are using 5-branches - as in the "Sync Lead 2" preset above.
Note to designers: at the moment ratings are lost when you upload a preset. So make sure you only set ratings after uploading the preset, and not before.
- Icon tags work just like the tags in the lists: click on the icon to add to the search, right-click (or shift-click) to search for items without the tag, and ctrl-click (or additionally, drag/drop a preset into the tag) to tag a preset. The color-coding of the icon should match the logic of the tags list as well.

The trashcan icon replaces the "hidden" tag, and should be much more intuitive. By default, presets in the trash are not displayed. Click on the trash icon to see its contents.
The heart icon replaces the "favorites" tag.
Actually, for now the tags are still in the list, but they will disappear from the tags list in 1.6.0.
