Node.js v9.9.0
nodejs.org
nodejs.org
Compare that to Node, which, while organized by the Node.js foundation, makes it very easy for people to contribute bug fixes and ideas. The core node repo is nearing 2,000 contributors. Having people help out, even if it's just with bug fixes, allow core developers to focus on new features. I don't think iteration speed is a sign of instability. Node has a well established release cycle and LTS process.
Java 9 is EOL in March 2018, and Java 10 is EOL in Sept 2018 [0]