For a quick and effortless start on Mac OSX, Linux or Cygwin, you can use GVM (the Groovy enVironment Manager) to download and configure any Groovy version of your choice. Basic instructions can be found below.
Groovy 2.4 is currently in beta testing. If you want a stable version, please choose Groovy 2.3 which is our latest official .
You can have a look at the JIRA release notes.
If you plan on using invokedynamic support, read those notes.
Groovy 2.3 is our latest official .