[GH-15832] Add "Known Bug" section to release notes

Changes.md

@@ -47,6 +47,10 @@ Download at: <a href='http://h2o-release.s3.amazonaws.com/h2o/rel-3.44.0/1/index
 - [[#15706]](https://github.com/h2oai/h2o-3/issues/15706) - Addressed CVE-2023-40167 and CVE-2023-36479 by upgrading the Jetty server.
 - [[#15470]](https://github.com/h2oai/h2o-3/issues/15470) - Upgraded Hadoop Libraries in Main Standalone Jar to address high and critical vulnerabilities.
 
+#### *Known Bugs*
+*(The list of bugs introduced by the changes in this release)*
+- [[#15832]](https://github.com/h2oai/h2o-3/issues/15832) - Broken Python and R API for UpliftDRF MOJO models.
+
 ### 3.42.0.4 - 10/3/2023
 
 Download at: <a href='http://h2o-release.s3.amazonaws.com/h2o/rel-3.42.0/4/index.html'>http://h2o-release.s3.amazonaws.com/h2o/rel-3.42.0/4/index.html</a>