BSF 3 beta3 ----------- The BSF 3 binary release contains several jars: bsf-api-beta3.jar - this contains all the javax.script classes as defined in the JSR-223 specification. This jar may be used as an application dependency when the application is using javax.script classes bsf-engines-beta3.jar - this contains several JSR-223 script engine implementations which enable a script language to be used via the javax.script APIs. This jar does not include the actual script language implementations, these need to be obtained separately. bsf-utils-beta3.jar - this contains various BSF specific utilities which aid using script languages from Java applications. bsf-all-beta3.jar - this contains all the other BSF jars merged into a single jar for ease of use. If you're not sure which jar to use then use this one. BSF 3 is compatible with Java 1.4.2 and above. Specific script languages may have further requirements on the Java version.