Informatics for Integrating Biology and the Bedside (i2b2) is a well-established open-source clinical data warehousing and analytics platform in use at over 200 locations worldwide. It was first released in November 2007 and is presently in its eighth major release, version 1.7.12. The core i2b2 software offers a flexible, ontology-based data model, an application programming interface for patient-centric data retrieval, and a web-based cohort finding tool. A diverse set of community contributions provide add-ons and plugins for a wide variety of import, export, and analytics applications. Originally funded by the National Institutes of Health, it is now maintained by the i2b2-tranSMART foundation, which continues to refine the core software according to users’ needs.
In December 2019, i2b2 1.7.12 was be released, with a variety of improvements ranging from improved usability in the cohort finding tool to refactoring on the server. 1.7.12a included critical bug fixes and was released in May 2020. We will release 1.7.13 at the end of 2020.