I recently tried to launch our application 1.3 jars against a 1.4 cluster. I got a java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/checkpoint/CheckpointedRestoring when I tried to run our 1.3 flink application against 1.4 .
Then I googled around and didn't see a mention of 1.4 in the compatibility table: https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/upgrading.html#compatibility-table Does 1.4 break compatibility? Maybe the 1.4 docs should be updated to reflect that? Thanks, Colin Williams