Upcoming changes to REDIS_URL for Heroku Data for Redis Mini add-ons
Change effective on 22 July 2024
On September 30, 2024, the REDIS_URL config var will become the secure TLS connection URL for all mini Heroku Data for Redis add-on plans. We’ll begin rolling REDIS_URL config vars to the TLS connection for mini add-on plans on that date.
We’re deprecating REDIS_TLS_URL on December 2, 2024. If you use REDIS_TLS_URL, you can switch to REDIS_URL after September 30, 2024.
Currently for mini plans, REDIS_URL is the insecure connection while REDIS_TLS_URL is the secure connection. We’re deprecating REDIS_TLS_URL in favor of a unified REDIS_URL for all add-on plans.
Customers using REDIS_URL on mini plans who must keep their insecure connections to prepare their app for supporting TLS can transfer their configuration to a temporary, insecure config var REDIS_TEMPORARY_URL. REDIS_TEMPORARY_URL and REDIS_TLS_URL will be available until December 2, 2024. By that date, all Redis connections require TLS with REDIS_URL.
See this Help article and Connecting to Heroku Data for Redis for more information on config var changes.