Configure dependencyUpdates to detect stable versions only

build.gradle

@@ -23,6 +23,19 @@ buildscript {
 plugins {
     id "com.github.ben-manes.versions" version "0.42.0"
 }
+
+def isNonStable = { String version ->
+    def stableKeyword = ['RELEASE', 'FINAL', 'GA'].any { it -> version.toUpperCase().contains(it) }
+    def regex = /^[0-9,.v-]+(-r)?$/
+    return !stableKeyword && !(version ==~ regex)
+}
+
+tasks.named("dependencyUpdates").configure {
+    rejectVersionIf {
+        isNonStable(it.candidate.version)
+    }
+}
+
 task clean(type: Delete) {
     delete rootProject.buildDir
 }