use Java 20

Author: AugustNagro

README.md

@@ -54,11 +54,11 @@ CompletionStage<byte[]> userPdf = userIdsFromDb().thenCompose(userIds -> {
 <dependency>
   <groupId>com.augustnagro</groupId>
   <artifactId>java-async-await</artifactId>
-  <version>0.2.1</version>
+  <version>0.3.0</version>
 </dependency>
 ```
 
-This library requires [JDK 19](https://jdk.java.net/19/) with `--enable-preview`, and has no dependencies.
+This library requires [JDK 20](https://jdk.java.net/20/) with `--enable-preview`, and has no dependencies.
 
 ## Docs:
 
@@ -84,9 +84,6 @@ Project Loom solves all five issues, although Async-Await only solves the first
 * You lose the concurrency features like timeout and retry offered by Rx, Uni, ZIO, etc.
 * Maybe you're already using Async libraries; the effort to migrate back to sync is gigantic, whereas introducing Async-Await can be done incrementally.
 
-## See Also
-An optimized implementation for Vertx: https://github.com/AugustNagro/vertx-async-await
-
 ## Alternative Approaches
 
 * Java bytecode manipulation: https://github.com/electronicarts/ea-async

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>com.augustnagro</groupId>
   <artifactId>java-async-await</artifactId>
-  <version>0.2.1</version>
+  <version>0.3.0</version>
 
   <name>Java Async-Await</name>
   <description>Async-Await support for Java</description>
@@ -67,7 +67,7 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.8.1</version>
         <configuration>
-          <release>19</release>
+          <release>20</release>
           <compilerArgs>
             <compilerArg>--enable-preview</compilerArg>
           </compilerArgs>
@@ -134,4 +134,4 @@
     </plugins>
   </build>
 
-</project>
+</project>