Update README.md

README.md

@@ -1,9 +1,9 @@
 # ProtoStream
 [![Build Status](https://ci.infinispan.org/buildStatus/icon?job=Protostream%2Fmain)](https://ci.infinispan.org/job/Protostream/job/main/)
-[![Maven Central](https://img.shields.io/badge/maven/central-4.4.3.Final-green.svg)](http://search.maven.org/#artifactdetails|org.infinispan.protostream|protostream|4.4.3.Final|)
+[![Maven Central](https://img.shields.io/badge/maven/central-5.0.1.Final-green.svg)](http://search.maven.org/#artifactdetails|org.infinispan.protostream|protostream|5.0.1.Final|)
 [![Javadoc](https://img.shields.io/badge/Javadoc-online-green.svg)](http://www.javadoc.io/doc/org.infinispan.protostream/protostream)
 [![License](https://img.shields.io/github/license/infinispan/infinispan.svg)](https://www.apache.org/licenses/LICENSE-2.0)
-[![Java 8+](https://img.shields.io/badge/java-8+-blue.svg)](http://java.oracle.com)
+[![Java 8+](https://img.shields.io/badge/java-17+-blue.svg)](http://java.oracle.com)
 
 ProtoStream is a serialization library based on [Protobuf](https://developers.google.com/protocol-buffers/) data format. It is open source software released under the
 [Apache License, v2.0](https://www.apache.org/licenses/LICENSE-2.0 "The Apache License, v2.0").
@@ -20,16 +20,39 @@ Add this dependency to your `pom.xml` file:
 <dependency>
    <groupId>org.infinispan.protostream</groupId>
    <artifactId>protostream</artifactId>
-   <version>5.0.0-SNAPSHOT</version>
+   <version>5.0.1.Final</version>
 </dependency>
 ```
 
 Annotation processor
 --------------------
 
-The annotation processor should be automatically discovered by the compiler when
-the `org.infinispan.protostream:protostream-processor` dependency is on the classpath using
-the service loader.
+The Java compiler discovers annotation processors differently, depending on the version and the options in use.
+With Java up to version 21, it's enough to put the `protostream-processor` dependency on the classpath and it 
+will be automatically discovered by the service loader mechanism. Another way, which is mandatory since Java 22,
+is to use the `--processor-path` option.
+
+```shell
+javac --processor-path /path/to/protostream-processor-5.0.1.Final.jar:... ...
+```
+
+Using Maven:
+```xml
+<plugin>
+  <artifactId>maven-compiler-plugin</artifactId>
+  <version>3.12.1</version>
+  <configuration>
+    <!-- Annotation processors -->
+    <annotationProcessorPaths>
+      <annotationProcessorPath>
+        <groupId>org.infinispan.protostream</groupId>
+        <artifactId>protostream-processor</artifactId>
+        <version>5.0.1.Final</version>
+      </annotationProcessorPath>
+    </annotationProcessorPaths>
+  </configuration>
+</plugin>
+```
 
 The annotation processor supports some configuration options:
 
@@ -41,21 +64,28 @@ The following `pom.xml` snippet shows how to do it with Maven:
 
 ```xml
 <plugin>
-   <groupId>org.apache.maven.plugins</groupId>
-   <artifactId>maven-compiler-plugin</artifactId>
-   <version>3.12.1</version>
-   <configuration>
-      <compilerArgs>
-         <arg>-Aprotostream-debug=true</arg>
-      </compilerArgs>
-   </configuration>
+  <artifactId>maven-compiler-plugin</artifactId>
+  <version>3.12.1</version>
+  <configuration>
+    <compilerArgs>
+      <arg>-Aprotostream-debug=true</arg>
+    </compilerArgs>
+    <!-- Annotation processors -->
+    <annotationProcessorPaths>
+      <annotationProcessorPath>
+        <groupId>org.infinispan.protostream</groupId>
+        <artifactId>protostream-processor</artifactId>
+        <version>5.0.1.Final</version>
+      </annotationProcessorPath>
+    </annotationProcessorPaths>
+  </configuration>
 </plugin>
 ```
 
 Requirements
 ------------
 
-Target runtime platform is Java 17.
+Target runtime platform is Java 17 or newer.
 
 Requires Java 17 or newer to build.