Dear users of the Flink Runner, Just a heads-up that we may remove Flink 1.5/1.6 support for future version of Beam (>=2.16.0): https://jira.apache.org/jira/browse/BEAM-7962
Why? We support 1.5 - 1.8 and have a 1.9 version in the making. The increased number of supported versions manifests in a more complex build environment and increased build times. Also, Flink only supports the last two released minor versions. Cheers, Max
