Prep for 22.4.0-RC2 (#3687)

* Add download links
* update version number
* update changelog
  * one critical change was missed (was not included in original pr)
  * add note about Java 17 migration.

Signed-off-by: Danno Ferrin <danno.ferrin@gmail.com>

CHANGELOG.md

@@ -1,14 +1,29 @@
 # Changelog
 
+## 22.4.0
+
+### Breaking Changes
+- Version 22.4.x will be the last series to support Java 11. Version 22.7.0 will require Java 17 to build and run.
+
+## 22.4.0-RC2
+
+### Additions and Improvements
+
+### Bug Fixes
+
 ## 22.4.0-RC1
 
+### Additions and Improvements
+- Unit tests are now executed with JUnit5 [#3620](https://github.com/hyperledger/besu/pull/3620)
+- Removed the Gas object and replaced it with a primitive long [#3674]
+
 ### Bug Fixes
 - Flexible Privacy Precompile handles null payload ID [#3664](https://github.com/hyperledger/besu/pull/3664)
 - Subcommand blocks import throws execption [#3646](https://github.com/hyperledger/besu/pull/3646)
-### Breaking Changes
 
-### Additions and Improvements
-- Unit tests are now executed with JUnit5 [#3620](https://github.com/hyperledger/besu/pull/3620)
+## Download Links
+- https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/22.4.0-RC1/besu-22.4.0-RC1.zip / SHA256 0779082acc20a98eb810eb08778e0c0e1431046c07bc89019a2761fd1baa4c25
+- https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/22.4.0-RC1/besu-22.4.0-RC1.tar.gz / SHA256 15d8b0e335f962f95da46864109db9f28ed4f7bc351995b2b8db477c12b94860
 
 ## 22.1.3
 

gradle.properties

@@ -1,4 +1,4 @@
-version=22.4.0-RC1
+version=22.4.0-RC2-SNAPSHOT
 
 # Workaround for Java 16 and spotless bug 834 https://github.com/diffplug/spotless/issues/834
 org.gradle.jvmargs=--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED \