Using Pre-releases with Gradle

Anybody know how to use Vaadin pre-releases with Gradle? We want to test a new component in 8.1.0.alpha1+.

plugins {
    id 'fi.jasoft.plugin.vaadin' version '1.1.9'

vaadin {
    version '8.1.0.+'

Are pre-releases in a standard repository? Otherwise that won’t work. I manually downloaded it and switched Gradle to reference it locally.

They are not in the standard repository, but the plugin will include the pre-release repository automatically for you, so no need to worry about in which repository the artifact is.