There are a number of zmanim downloads available. The latest Zmanim API v1.2.1 was released on May 30, 2010 י”ז סיון תש”ע. All previous versions are no longer supported and have been removed from the site. The latest alpha and beta versions can be downloaded from the Google Code KosherJava Zmanim project download page. Last updated on May 30, 2010