update README for 3.0.1

README.md

@@ -77,6 +77,7 @@ Here's what a log message with an `incomingOrder` looks like in Kibana:
   * [Changing serialization by using Jackson annotations](#changing-serialization-by-using-jackson-annotations)
   * [Changing serialization by using a custom ObjectMapper](#changing-serialization-by-using-a-custom-objectmapper)
 * [Changes](#changes)
+  * [3.0.1](#301)
   * [3.0.0](#300)
   * [2.0.6](#206)
   * [2.0.5](#205)
@@ -145,7 +146,7 @@ If you use maven, add this to your pom.xml:
 <dependency>
     <groupId>de.dm.infrastructure</groupId>
     <artifactId>structured-logging</artifactId>
-    <version>3.0.0</version>
+    <version>3.0.1</version>
 </dependency>
 ```
 
@@ -351,6 +352,10 @@ If you want to use your own ObjectMapper for serialization, you can exchange the
 
 ## Changes
 
+### 3.0.1
+
+* properly serialize Optional and other Java 8 Types provided by jackson-datatype-jdk8
+
 ### 3.0.0
 
 * **Breaking Change**: Structured Logging now requires Java 17