The Eclipse Simultaneous Release is the end result of a process that sees the coordination of scheduling and communication across Eclipse Open Source Project teams. This year's Eclipse Oxygen is the 12th official simultaneous release; it includes the hard work from of 83 open source projects, comprising approximately two million net new lines of code.The output of this process is a composite repository of open source software, and a new release of the Eclipse IDE. The Eclipse Oxygen release includes many improvements in functionality and performance, includes new tools for Java™ code coverage analysis, and can be extended to support Java 9 development via an early access preview.