Next development version

docs/antora.yml

@@ -1,5 +1,4 @@
 
 name: ROOT
-version: '6.0.0-M3'
-prerelease: 'true'
-display_version: '6.0.0-M3'
+version: '6.0.0'
+prerelease: '-SNAPSHOT'

gradle.properties

@@ -3,7 +3,7 @@ springJavaformatVersion=0.0.31
 springBootVersion=2.4.2
 springFrameworkVersion=6.0.0-M2
 openSamlVersion=3.4.6
-version=6.0.0-M3
+version=6.0.0-SNAPSHOT
 kotlinVersion=1.6.20-M1
 samplesBranch=6.0.x
 org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError