Upgrade to 2.1.4?

[fb-guy]

I have been using 2.1.3 for some time and it works fine. We recently move to a faster web host and have had some user problems seeing thumbnails, and while we are trying to work out what the problem is -- I was wondering if it would be a good idea for upgrade to 2.1.4.

What are the new features and should we do the upgrade?
FB

[Morgan]

Query optimization was done in pro version 2.1.4.5 and version changes are listed here (http://www.photoplog.com/demo/index.php).