Oracle has released Java Development Kit 8, Update 40 (JDK 8u40), which brings several performance, scalability and administration improvements to the platform. Key improvements include the following:
- An improved G1 garbage collector
- Dynamic enablement of Java Flight Recorder (JFR)
- JMC 5.5
- A self-contained application packager
- A new time zone date updater
- Nashorn support
- Improved memory tracking scalability
- Better reaction to memory pressure
- Improvements to the JavaFX stack