Change effective on 22 September 2016
Heroku Enterprise customers are invited to try out Private Spaces in the Sydney region, now in beta. During the beta, the region should not be used for critical production applications. Contact your Salesforce account representative if you are interested in trying it out.
The Sydney region is a good choice for your Private Spaces if you are serving customers in Australia or close vicinity. By placing your apps geographically in Sydney, your customers will experience lower latencies and, as a result, get a better overall app experience.