• For long-running processes intermediate coverage data dumps can now be collected without terminating the application under test. This feature allows so called differential code coverage, a technique proposed by Kaitlin Duck Sherwood in her paper Reducing Code Navigation Effort with Differential Code Coverage.
• Trac #168: New editor for JaCoCo execution data files.
• Trac #190: The Coverage view option Hide Unused Types has been generalized to Hide Unused Elements.
• SF #3489951: Don't process class files in team provider folders.
• SF #3487904: Avoid NPE in case of new and empty launch configurations.
• SF #3477725: Java agent must not be added multiple times to plug-in launch configurations.

• Include bundle org.objectweb.asm with the EclEmma feature as this bundle is not available in all Eclipse distributions.

The first version of EclEmma that is backed by JaCoCo instead of EMMA. This adds several enhancements and new features to EclEmma.

• Branch Coverage: Branch coverage is shown on the property pages and can be selected in the Coverage view. For the source editors there is a new annotation that marks lines with branches. A new tooltip provides details about branches on a per-line basis.
• No class file instrumentation: With JaCoCo Java classes are instrumented in-memory only, which means modified class files will not be written to the file system anymore. Therefore the "in-place instrumentation" mode and its disadvantages are not required any more (no re-build required, JAR files can be analyzed). Programs do now launch immediately without delay due to instrumentation of all class files.
• Source folders can be selected separately even if their class file output location is the same.