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Heroku Platform API now requires TLS v1.2 or higher

Change effective on 15 April 2020

The Heroku Platform API now requires TLS version 1.2 or higher. Clients using TLS 1.1 should upgrade to TLS 1.2+ to avoid interruptions. This only affects the Platform API and does not affect routing to dynos.

Heroku-16 and Heroku-18 Stack Images Updated New logging infrastructure and L14 reporting change