Definition: The term "5.0_64" refers to a specific version of Apache Tomcat 7.0 (Version 7.0.3) released in June, 2018. This release introduced several improvements over its previous version, including support for more efficient and secure HTTP server configurations, improved caching capabilities, improved security features, and changes to the JDK. This specific version was also available as an official "5.0_64" bundle with various configuration options included. It's essential for upgrading from older versions of Apache Tomcat.