Next development version

docs/antora.yml

@@ -1,4 +1,3 @@
-'display_version': '5.8.0-M2'
 'name': 'ROOT'
-'prerelease': 'true'
-'version': '5.8.0-M2'
+'prerelease': '-SNAPSHOT'
+'version': '5.8.0'

gradle.properties

@@ -3,7 +3,7 @@ springJavaformatVersion=0.0.34
 springBootVersion=2.4.2
 springFrameworkVersion=5.3.22
 openSamlVersion=3.4.6
-version=5.8.0-M2
+version=5.8.0-SNAPSHOT
 kotlinVersion=1.7.10
 samplesBranch=5.8.x
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError