Update to Spring Security 5.6

Closes gh-9695

config/src/main/resources/META-INF/spring.schemas

@@ -1,4 +1,5 @@
-http\://www.springframework.org/schema/security/spring-security.xsd=org/springframework/security/config/spring-security-5.5.xsd
+http\://www.springframework.org/schema/security/spring-security.xsd=org/springframework/security/config/spring-security-5.6.xsd
+http\://www.springframework.org/schema/security/spring-security-5.6.xsd=org/springframework/security/config/spring-security-5.6.xsd
 http\://www.springframework.org/schema/security/spring-security-5.5.xsd=org/springframework/security/config/spring-security-5.5.xsd
 http\://www.springframework.org/schema/security/spring-security-5.4.xsd=org/springframework/security/config/spring-security-5.4.xsd
 http\://www.springframework.org/schema/security/spring-security-5.3.xsd=org/springframework/security/config/spring-security-5.3.xsd
@@ -16,7 +17,8 @@ http\://www.springframework.org/schema/security/spring-security-2.0.xsd=org/spri
 http\://www.springframework.org/schema/security/spring-security-2.0.1.xsd=org/springframework/security/config/spring-security-2.0.1.xsd
 http\://www.springframework.org/schema/security/spring-security-2.0.2.xsd=org/springframework/security/config/spring-security-2.0.2.xsd
 http\://www.springframework.org/schema/security/spring-security-2.0.4.xsd=org/springframework/security/config/spring-security-2.0.4.xsd
-https\://www.springframework.org/schema/security/spring-security.xsd=org/springframework/security/config/spring-security-5.5.xsd
+https\://www.springframework.org/schema/security/spring-security.xsd=org/springframework/security/config/spring-security-5.6.xsd
+https\://www.springframework.org/schema/security/spring-security-5.6.xsd=org/springframework/security/config/spring-security-5.6.xsd
 https\://www.springframework.org/schema/security/spring-security-5.5.xsd=org/springframework/security/config/spring-security-5.5.xsd
 https\://www.springframework.org/schema/security/spring-security-5.4.xsd=org/springframework/security/config/spring-security-5.4.xsd
 https\://www.springframework.org/schema/security/spring-security-5.3.xsd=org/springframework/security/config/spring-security-5.3.xsd

config/src/test/java/org/springframework/security/config/doc/XsdDocumentedTests.java

@@ -65,7 +65,7 @@ public class XsdDocumentedTests {
 
 	String schema31xDocumentLocation = "org/springframework/security/config/spring-security-3.1.xsd";
 
-	String schemaDocumentLocation = "org/springframework/security/config/spring-security-5.5.xsd";
+	String schemaDocumentLocation = "org/springframework/security/config/spring-security-5.6.xsd";
 
 	XmlSupport xml = new XmlSupport();
 
@@ -150,8 +150,8 @@ public class XsdDocumentedTests {
 				.getParentFile()
 				.list((dir, name) -> name.endsWith(".xsd"));
 		// @formatter:on
-		assertThat(schemas.length).isEqualTo(17)
-				.withFailMessage("the count is equal to 17, if not then schemaDocument needs updating");
+		assertThat(schemas.length).isEqualTo(18)
+				.withFailMessage("the count is equal to 18, if not then schemaDocument needs updating");
 	}
 
 	/**

core/src/main/java/org/springframework/security/core/SpringSecurityCoreVersion.java

@@ -43,7 +43,7 @@ public final class SpringSecurityCoreVersion {
 	 * N.B. Classes are not intended to be serializable between different versions. See
 	 * SEC-1709 for why we still need a serial version.
 	 */
-	public static final long SERIAL_VERSION_UID = 550L;
+	public static final long SERIAL_VERSION_UID = 560L;
 
 	static final String MIN_SPRING_VERSION = getSpringVersion();
 

gradle.properties

@@ -2,7 +2,7 @@ aspectjVersion=1.9.6
 springJavaformatVersion=0.0.28
 springBootVersion=2.4.2
 openSamlVersion=3.4.6
-version=5.5.1-SNAPSHOT
+version=5.6.0-SNAPSHOT
 kotlinVersion=1.5.0
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true

taglibs/src/main/resources/META-INF/security.tld

@@ -20,7 +20,7 @@
         version="2.0">
     <description>Spring Security Authorization Tag Library</description>
 
-    <tlib-version>5.5</tlib-version>
+    <tlib-version>5.6</tlib-version>
     <short-name>security</short-name>
     <uri>http://www.springframework.org/security/tags</uri>