We will be ending support for the Play 1.x framework on June 1, 2017. The Play Framework core team ceased active development of Play 1.x on August 6, 2013, with version 2.0 released in March 2012. Play 1.x is no longer receiving bug fixes and security updates by Lightbend (formerly Typesafe) nor the core team.
Your Play 1.x apps will continue to work on Heroku, but the buildpack will no longer be automatically detected after June 1, 2017. To continue using Play 1.x, set the buildpack manually:
heroku buildpacks:set https://github.com/heroku/heroku-buildpack-play
The buildpack will no longer receive updates of new JDK versions and framework point releases. While Heroku customer support does its best to lend a hand with unsupported languages/frameworks, we will no longer officially answer Play 1.x technical questions.
We suggest upgrading your app to a newer 2.x version of the framework. After youve made the code changes necessary to support Play 2.x, you can use the Scala buildpack. Heroku customer support will continue to answer Play 2.x technical questions.