After 4 years of development, Hospital OS version 3 is now released as GPL (General Public License*) with a major improvement in programming structures and alogorithms, the new version will be more efficient and easier for users to understand the logic behind. In addition, a JAVA workshop will be organized next year to enhance our users programming skills and capability to customize or extend features of Hospital OS. Our team hopes that it will encourage cooperative efforts among users and developers to create a sustainable hospital information system for our communities.