Privacy choices

Official-source monitor

OpenAI changes

ReleaseDelta follows OpenAI's official API changelog and publishes approved changes that may affect models, endpoints, SDK behavior, limits, or capabilities.

What this page covers

  • Model lifecycle and retirement dates
  • API and response contract changes
  • SDK, limit, pricing, and capability changes

Official sources

Common migration scenarios

  • Replace a model before a retirement date
  • Review Responses API or response-shape changes
  • Re-test tool calling after SDK or limit changes

Source check cadence: every 30 minutes.

The event summary below reports the latest approved public catalog state.

Only approved events with official evidence appear in the change list below.

Published events

Published event count and Last updated time are loaded from the approved public catalog below.

Loading verified changes…

Checking the latest approved events from official provider sources.