Thanks Keegan. I added it to the download page.

On Sat, Aug 18, 2018 at 3:14 PM Keegan Witt <keeganwitt@gmail.com> wrote:
The Windows installer for Groovy 2.5.2 is available from the usual place: https://bintray.com/groovy/Distributions/download_file?file_path=groovy-2.5.2-installer.exe.