Prepare for 2.2.1 release (#272)

* Prepare for 2.2.1 release

* Revise breaking change language on release 2.2.0

Author: ethkatnic

README.md

@@ -156,7 +156,11 @@ all languages.
 * The [Amazon Kinesis Forum][kinesis-forum]
 
 ## Release Notes
-### Release 2.2.0 (2025-03-12) - IMPORTANT: See section ``Migration to Python KCL 2.2.0`` to ensure upgrading does not break compatibility
+### Release 2.2.1 (March 22, 2025)
+* Downgrade logback from 1.5.16 to 1.3.15 to maintain JDK 8 compatability
+
+### Release 2.2.0 (March 12, 2025) - IMPORTANT: See section ``Migration to Python KCL 2.2.0`` to ensure upgrading does not break compatibility
+#### :warning: [BREAKING CHANGES] - Release 2.2.0 contains a dependency version that is not compatible with JDK 8. Please upgrade to a later version if your KCL application requires JDK 8.
 * [#1444](https://github.com/awslabs/amazon-kinesis-client/pull/1444) Fully remove dependency on the AWS SDK for Java 1.x which will reach [end-of-support by December 31st, 2025](https://aws.amazon.com/blogs/developer/announcing-end-of-support-for-aws-sdk-for-java-v1-x-on-december-31-2025/).
     * The Glue Schema Registry integration functionality no longer depends on AWS SDK for Java 1.x. Previously, it required this as a transient dependency.
     * Multilangdaemon has been upgraded to use AWS SDK for Java 2.x. It no longer depends on AWS SDK for Java 1.x.

pom.xml

@@ -8,7 +8,8 @@
         <netty.version>4.1.118.Final</netty.version>
         <netty-reactive.version>2.0.6</netty-reactive.version>
         <fasterxml-jackson.version>2.13.5</fasterxml-jackson.version>
-        <logback.version>1.5.16</logback.version>
+        <!--do not upgrade to logback version 1.5.x, as this is not compatible with JDK 8-->
+        <logback.version>1.3.15</logback.version>
     </properties>
     <dependencies>
         <dependency>

setup.py

@@ -42,7 +42,7 @@
 
 PACKAGE_NAME = 'amazon_kclpy'
 JAR_DIRECTORY = os.path.join(PACKAGE_NAME, 'jars')
-PACKAGE_VERSION = '2.2.0'
+PACKAGE_VERSION = '2.2.1'
 PYTHON_REQUIREMENTS = [
     'boto3',
     # argparse is part of python2.7 but must be declared for python2.6