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Threshold Autoscaling public beta

Change effective on 17 November 2016

Threshold Autoscaling is now available as a public beta feature for Performance and Private web dynos. The feature automatically scales the number of web dynos based on a user-specified 95th percentile latency. More details are available in Dev Center.

autoscalingdemo

Release phase and deploy hooks are now compatible Update Ruby's libyaml to 0.1.7 for CVE-2014-9130