release: 4.75.0

[openai-sdks]

Automated Release PR

4.75.0 (2026-10-01)

Features

• agents: Prepare hosted files and download turn artifacts (47add84)

---

This PR was generated with Release Please. See documentation.

[openai-sdks]

OkTest Summary

✅ 236/236 SDK tests passed in 16.746s for Java SDK PR #1132.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	198ms
tests/chat-completions-create.test.ts	✅ Passed	456ms
tests/chat-completions-stream.test.ts	✅ Passed	748ms
tests/files-content-binary.test.ts	✅ Passed	372ms
tests/files-create-multipart.test.ts	✅ Passed	264ms
tests/files-list-pagination.test.ts	✅ Passed	261ms
tests/initialize-config.test.ts	✅ Passed	117ms
tests/instance-isolation.test.ts	✅ Passed	295ms
tests/models-list.test.ts	✅ Passed	293ms
tests/responses-background-lifecycle.test.ts	✅ Passed	266ms
tests/responses-body-method-errors.test.ts	✅ Passed	460ms
tests/responses-cancel-timeout.test.ts	✅ Passed	214ms
tests/responses-cancel.test.ts	✅ Passed	215ms
tests/responses-compact-retries.test.ts	✅ Passed	400ms
tests/responses-compact.test.ts	✅ Passed	240ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	702ms
tests/responses-create-advanced.test.ts	✅ Passed	1.499s
tests/responses-create-disconnect.test.ts	✅ Passed	1.05s
tests/responses-create-errors.test.ts	✅ Passed	375ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	250ms
tests/responses-create-retries.test.ts	✅ Passed	235ms
tests/responses-create-stream-failures.test.ts	✅ Passed	288ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	227ms
tests/responses-create-stream-wire.test.ts	✅ Passed	6.581s
tests/responses-create-stream.test.ts	✅ Passed	134ms
tests/responses-create-terminal-states.test.ts	✅ Passed	395ms
tests/responses-create-timeout.test.ts	✅ Passed	235ms
tests/responses-create.test.ts	✅ Passed	1.242s
tests/responses-delete.test.ts	✅ Passed	229ms
tests/responses-input-items-errors.test.ts	✅ Passed	284ms
tests/responses-input-items-list.test.ts	✅ Passed	338ms
tests/responses-input-items-options.test.ts	✅ Passed	319ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	313ms
tests/responses-input-tokens-count.test.ts	✅ Passed	281ms
tests/responses-malformed-inputs.test.ts	✅ Passed	5.195s
tests/responses-not-found-errors.test.ts	✅ Passed	356ms
tests/responses-parse.test.ts	✅ Passed	641ms
tests/responses-retrieve-retries.test.ts	✅ Passed	251ms
tests/responses-retrieve.test.ts	✅ Passed	338ms
tests/responses-stored-method-errors.test.ts	✅ Passed	967ms
tests/retry-behavior.test.ts	✅ Passed	3.443s
tests/sdk-error-shape.test.ts	✅ Passed	446ms

View OkTest run #36937572481

_{SDK merge (a064c9da4c2f) · head (8408c651e0ab) · base (47add844df66) · OkTest (92ff272954a1)}

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

93 mixed files remain; 0 existing customizations changed.

Compared 47add844df66 → 8408c651e0ab. Generated baselines verified.

93 existing customizations unchanged

• openai-java-core/src/main/kotlin/com/openai/models/audio/AudioResponseFormat.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuth.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthCreateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthRotateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponse.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionMessageFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionToolMessageParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/Embedding.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/EmbeddingCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/Response.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionWebSearch.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseInputItem.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseTextConfig.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/videos/Video.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/UnwrapWebhookEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/WebhookEndpointWithSecret.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ImageServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/SkillServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/VideoServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranscriptionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranslationServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/beta/agents/SessionServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/beta/agents/SessionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/chat/ChatCompletionServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/finetuning/checkpoints/PermissionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/skills/VersionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/blocking/BetaService.kt

53 more in the full report.

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 36937616582 --repo openai/openai-java \
  --name castiron-custom-code-36937616582-1 --dir /tmp/castiron-custom-code-36937616582-1
git apply --stat /tmp/castiron-custom-code-36937616582-1/custom-code.patch
cat /tmp/castiron-custom-code-36937616582-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin 47add844df665a2dcbcedf745eb6f95dedcc4e9a 8408c651e0ab802c710c5cf79a38b087f436b3b9
python3 scripts/castiron/custom_code_report.py report \
  --base 47add844df665a2dcbcedf745eb6f95dedcc4e9a \
  --head 8408c651e0ab802c710c5cf79a38b087f436b3b9 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-8408c651e0ab
cat /tmp/castiron-custom-code-8408c651e0ab/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch

[apcha-oai]

Reviewed the release version updates and changelog, including the restored Agents entries.

[openai-sdks]

🤖 Created releases:

• v4.75.0

🌻