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What Heroku shipped in December 2025

5 tracked updates · December 2025

Signal breakdown — December 2025

1 feature updates

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Feature/heroku.com

Faster Agents with Automatic Prompt Caching

Heroku is launching automatic prompt caching starting December 18, 2025. Prompt caching delivers a notable, zero-effort performance increase for Heroku Managed Inference and Agents . Enabled by defaul

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