openai breaking changes

7.0.0

1 breaking change, first published July 27, 2026.

• Removed
  The package now requires Node.js 22 or later, so older Node.js versions are no longer supported. Upgrade Node.js to 22 or later before updating. github.com

6.0.0

11 breaking changes, first published September 30, 2025.

• Signature changed AzureOpenAI.Responses.ResponseCustomToolCallOutput.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed AzureOpenAI.Responses.ResponseFunctionToolCallOutputItem.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed AzureOpenAI.Responses.ResponseInputItem.FunctionCallOutput.output
  Was output: string; now output: string | ResponsesAPI.ResponseFunctionCallOutputItemList. npmjs.com
• Signature changed default.Responses.ResponseCustomToolCallOutput.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed default.Responses.ResponseFunctionToolCallOutputItem.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed default.Responses.ResponseInputItem.FunctionCallOutput.output
  Was output: string; now output: string | ResponsesAPI.ResponseFunctionCallOutputItemList. npmjs.com
• Signature changed OpenAI.Responses.ResponseCustomToolCallOutput.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed OpenAI.Responses.ResponseFunctionToolCallOutputItem.output
  Was output: string; now output: string | Array<ResponseInputText | ResponseInputImage | ResponseInputFile>. npmjs.com
• Signature changed OpenAI.Responses.ResponseInputItem.FunctionCallOutput.output
  Was output: string; now output: string | ResponsesAPI.ResponseFunctionCallOutputItemList. npmjs.com
• Signature changed ResponseCustomToolCallOutput.output
  The output field now returns either a string or an array of input text, image or file parts. Code that assumes output is always a string must handle the array form. github.com

And 1 more in this version.

5.0.0

560 breaking changes, first published May 29, 2025.

• Removed
  Support for end-of-life Node.js versions is dropped; users on those versions must upgrade Node.js. github.com
• Removed client.beta.chat.completions.runFunctions
  The deprecated runFunctions method is removed in favor of the tools-based helpers; users must switch to the replacement helpers. github.com
• Removed client.files.retrieveContent
  client.files.retrieveContent is gone in v5.0.0; code calling it must change. github.com
• Renamed client.beta.assistants.del
  Call client.beta.assistants.delete instead of del. github.com
• Renamed client.beta.threads.del
  Call client.beta.threads.delete instead of del. github.com
• Renamed client.chat.completions.del
  Call client.chat.completions.delete instead of del. github.com
• Renamed client.containers.del
  Call client.containers.delete instead of del. github.com
• Renamed client.evals.del
  Call client.evals.delete instead of del. github.com
• Renamed client.files.del
  Call client.files.delete instead of client.files.del. github.com
• Renamed client.fineTuning.checkpoints.permissions.del
  Call the delete method instead of del, and pass the new arguments shown in api.md. github.com

And 550 more in this version.

Check your code

These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.