10.4320 is a version or “patch” of Epic, an industry-leading electronic health record (EHR) system and software. Epic provides a unified application platform for healthcare organizations and providers to store, manage, and share patients' health information securely. This particular version includes a number of features and enhancements, such as new features for streamlining medication refill orders and refills. Additionally, the 10.4320 patch includes a patient portal, which allows patients to access their health information and make appointments from any device. It also includes improved tools for tracking patient vitals, improved reporting and dashboards, as well as enhancements to Epic’s mobile app.