VisualVM 1.3.6 has been released, delivering many bugfixes and introducing several improvements:
- Unavailable sites aren’t deleted on startup
- Metaspace monitoring for JDK 1.8
- Support for read-only JMX connections
- Comparing CPU snapshots
- Retained size by class in HeapWalker
- Built on NetBeans Platform & profiler 7.3.1
See the Release Notes for the list of all changes. The bits can be downloaded at visualvm.java.net.