Apache Kafka 0.10, 0.11, 1.0 and 1.1 are now EOL

Change effective on 26 July 2019

Apache Kafka 0.10, 0.11, 1.0 and 1.1 are now EOL for Apache Kafka on Heroku. The current recommended version is 2.2.1. You can upgrade your addon today by running heroku kafka:upgrade –version 2.2. Please see Dev Center for more details.