OpenJDK 27.0.1, 25.0.5, 21.0.13, 17.0.21, 11.0.33 and 1.8.0_512 now available

Change effective on 23 October 2026

Heroku’s support for Java, Scala, Clojure, and Groovy now uses the following default versions for each supported major version:

  • Java 8 is now 1.8.0_512
  • Java 11 is now 11.0.33
  • Java 17 is now 17.0.21
  • Java 21 is now 21.0.13
  • Java 25 is now 25.0.5
  • Java 27 is now 27.0.1

Please visit the Dev Center for more information on Java version support.