We have recently added a property 'routing_api.enabled' which indicates if
the routing-api is also deployed.

Gorouter has a property 'router.enable_routing_api' which would determine
if gorouter should also fetch routes from the routing-api.

CC is using the new generic 'routing_api.enabled'. So to avoid duplication
we removed 'router.enable_routing_api' and now gorouter references the
newer 'routing_api.enabled' property.

Therefore if anyone was explicitly overriding 'router.enable_routing_api' ,
you will no longer have to do this once you get the change.

For more info:
https://www.pivotaltracker.com/story/show/115965445

https://github.com/cloudfoundry/cf-release/commit/dcc9bd69ca7f9a0e2615035999764ff1d976f7ff

Cheers

Mark (and Leo)