Heroku Changelog Bamboo stack EOL on June 16th 2015

Change effective on 16 June 2014

On June 16th 2015, 1 year from today, we will shut down the Bamboo stack. If you have apps on Bamboo, we recommend migrating immediately. Please refer to the Cedar migration guide for details on performing the migration.

Bamboo relies on components (including OS version and Ruby VMs) that have reached EOL, and the Bamboo stack is not recommended for use by production apps.