Add a property to enable Back-Channel Logout

README.MD

@@ -482,7 +482,7 @@ These starters are designed to push auto-configuration one step further. In most
 I could forget to update README before releasing, so please refer to [maven central](https://repo1.maven.org/maven2/com/c4-soft/springaddons/spring-addons/) to pick latest available release
 ```xml
     <properties>
-        <springaddons.version>7.3.5</springaddons.version>
+        <springaddons.version>7.3.6</springaddons.version>
     </properties>
     <dependencies>
 
@@ -518,6 +518,9 @@ I could forget to update README before releasing, so please refer to [maven cent
 
 ### 5.1. <a name="release-notes-7"/>`7.x` Branch
 
+### `7.3.6`
+- Add a `com.c4-soft.springaddons.oidc.client.back-channel-logout.enabled` property to opt-in [Spring Security implementation of Back-Channel Logout](https://docs.spring.io/spring-security/reference/reactive/oauth2/login/logout.html#configure-provider-initiated-oidc-logout). `Customizer.withDefaults()` is used unless you provide one as a bean.
+
 ### `7.3.5`
 - Boot `3.2.2` as transitive dependency