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OpenAI API changes
Deprecation

SDK version 5.21.0 yanked

sdk:npm/openai@5.21.0
Product
OpenAI API
Source
GitHub Releases
Change kind
Sdk Version Yanked
Detected
Last updated

Deterministic evidence

Before / after

Extracted from OpenAI's published contract. Open the source ↗

−2+22 changes

1 / 2
"link": "https://github.com/openai/openai-node/releases/tag/v5.21.0",
"link": "https://github.com/openai/openai-node/releases/tag/v5.21.0",
"notes": "v5.21.0\n## 5.21.0 (2025-09-17)\n\nFull Changelog: [v5.20.3...v5.21.0](https://github.com/openai/openai-node/compare/v5.20.3...v5.21.0)\n\n### Features\n\n* **api:** type updates for conversations, reasoning_effort and results for evals ([f243f54](https://github.com/openai/openai-node/commit/f243f54072d00cb8d83b8c6093accaaabf34d4cf))",
"notes": "v5.21.0\n## 5.21.0 (2025-09-17)\n\nFull Changelog: [v5.20.3...v5.21.0](https://github.com/openai/openai-node/compare/v5.20.3...v5.21.0)\n\n### Features\n\n* **api:** type updates for conversations, reasoning_effort and results for evals ([f243f54](https://github.com/openai/openai-node/commit/f243f54072d00cb8d83b8c6093accaaabf34d4cf))",
"published_at": "2025-09-17T22:03:12Z",
"published_at": "2025-09-17T22:03:12Z",
"registry_message": "",
"registry_message": "The registry no longer lists this version.",
"version": "5.21.0",
"version": "5.21.0",
"yanked": false
"yanked": true
}
}

Deadline

Deprecation timeline

sdk:npm/openai@5.21.0 was announced as deprecated on Oct 18, 2026, with no removal date yet.

See all OpenAI deprecation deadlines →

Interpreted documentation change

What the vendor announced

The evidence indicates a change where the current text states that the registry no longer lists this version, suggesting a deprecation or removal notice for the npm package version 5.21.0. No explicit replacement endpoint is provided, and there is no specific deadline mentioned beyond the historical release date in the previous text. The change is categorized as informational.

The registry no longer lists this version.

Vendor source ↗

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Multi-source correlation

Other OpenAI findings correlated with this change across sources.

  1. Info
    Documentation section changed: 2025-09-26: Legacy GPT model snapshots (March 2026 shutdown)doc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Past deprecations/2025-09-26: Legacy GPT model snapshots (March 2026 shutdown)
    OpenAI API
  2. Info
    Documentation section changed: 2026-08-26: Transcription modelsdoc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Upcoming deprecations/2026-08-26: Transcription models
    OpenAI API
  3. Info
    Documentation section changed: 2026-10-14: GPT-4 series model deprecationsdoc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Upcoming deprecations/2026-10-14: GPT-4 series model deprecations
    OpenAI API
  4. Info
    Documentation section changed: 2026-04-22: Legacy GPT model snapshotsdoc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Upcoming deprecations/2026-04-22: Legacy GPT model snapshots
    OpenAI API
  5. Info
    Documentation section changed: 2026-04-22: Legacy GPT model snapshotsdoc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Past deprecations/2026-04-22: Legacy GPT model snapshots
    OpenAI API
  6. Info
    Documentation section changed: Overviewdoc:019fb619-9a96-7dbf-bd33-e06fdf8a22fb::Deprecations/Overview
    OpenAI API