Zenphoto 1.4.5 release is on its way May 09, 2013
Implementation has closed for the 1.4.5 release. You can preview it from the Development Builds link on the Download page of our Website. The release notes can be found here: http://www.zenphoto.org/news/zenphoto-1.4.5
Theme Developers especially should study the developer's notes and prepare upgrades to your themes.
We welcome all parties to test this release in any way you are able. Use the GitHub issues for anything you find.