[ https://issues.apache.org/jira/browse/KAFKA-19376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17959709#comment-17959709 ]
Lucas Brutschy commented on KAFKA-19376: ---------------------------------------- * Online migration there is no explicit way to detect that a user is attempting a migration. We will log an error message though once the client tries to join the group. * Topology Updates Similar as above. Topology update just means the application is started as usual, but with a changed topology. We will detect this and log an error. * High Availability Assignor This is the default, and usually the only option. So there is no configuration to error out on > Throw an error message if any unsupported feature is used with KIP-1071 > ----------------------------------------------------------------------- > > Key: KAFKA-19376 > URL: https://issues.apache.org/jira/browse/KAFKA-19376 > Project: Kafka > Issue Type: Sub-task > Components: streams > Reporter: Lucas Brutschy > Assignee: Lucas Brutschy > Priority: Major > > We should be mindful of ours users and let them know early if they are using > an unsupported feature in 4.1. > Unsupported features: > - Regular expressions > - Warm-up replicas (high availability assignor) > - Static membership > - Standby replicas enabled through local config > - Named topologies (already checked) > - Non-default kafka-client supplier -- This message was sent by Atlassian Jira (v8.20.10#820010)