

OpenJDK 11 comes packed with a wide range of new features and enhancements. It has since become the default version of Java for many operating systems and platforms.

OpenJDK 11 was released on September 25th, 2018, and is now widely available for download. Note: To uninstall previously installed OpenJDK please refer Uninstall OpenJDK Windows If you want to know more about OpenJDK, you can go through Open Java Development Kit Quick guide. For more details refer openjdk vs oracle jdk

Main difference between Oracle JDK and OpenJDK is that OpenJDK is free for all while Oracle Java Development Kit or Oracle JDK requires commercial license. OpenJDK is the short form of Open Java Development Kit similar to Oracle's Java Development Kit used to develop Java Applications. Quick guide to download and install OpenJDK 11 on Windows.
