stacksunset

Your dependency scanner is not watching the thing that will break you.

Dependabot watches package versions. Snyk watches vulnerabilities. Nothing watches the vendor announcement layer — the API being sunset, the licence being pulled, the model being retired. Those break production on a schedule someone else picked, and today you find out by happening to read a changelog.

Below is every verified deprecation we track. 4 of them land in the next 90 days. Every entry cites the vendor's own documentation.

Upcoming

api shutdown Shuts down August 26, 2026 · replaced by Responses API and Conversations API

api shutdown Shuts down September 24, 2026 · no first-party replacement announced

model shutdown Shuts down September 28, 2026 · replaced by gpt-5.6-terra

model shutdown Shuts down October 23, 2026 · replaced by gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna depending on model

api shutdown Shuts down November 30, 2026 · replaced by Move prompt storage into application code

product shutdown Shuts down November 30, 2026 · replaced by Promptfoo (suggested by OpenAI)

product shutdown Shuts down November 30, 2026 · replaced by Agents SDK or ChatGPT Workspace Agents

model shutdown Shuts down December 1, 2026 · replaced by gpt-image-2

model shutdown Shuts down December 11, 2026 · replaced by gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna depending on model

access restriction Shuts down January 6, 2027 · no self-serve replacement announced

model shutdown Shuts down January 20, 2027 · replaced by gpt-realtime-2.1, gpt-audio-1.5, and mini variants

Get told before the deadline, not after

Point Stack Sunset at your stack and it tells you which vendor announcements actually affect you — and how long you have.

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Where this data comes from. Every entry is verified against the vendor's own documentation before publication; secondary reporting is not accepted as a source. Coverage is currently limited to what has been verified — it is not exhaustive, and you should always confirm against the vendor before acting. If you spot an error or a missing deprecation, open an issue.