On October 1, 2015, all databases that use a legacy Heroku Postgres plan will be decommissioned.
We introduced our new production tier plans over 10 months ago. These plans give you up to twice the amount of memory and three times the performance at the same price points of comparable legacy plans. The new databases have been re-engineered to give developers more performant and reliable infrastructure for their applications.
These apps have legacy databases attached to them, identified by the plan name and resource name, that need to be upgraded to the new plan lineup: