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3.0.0 (2026-11-05)

⚠ BREAKING CHANGES

• Default Gemini Developer API version is now v1 (was v1beta) (2d0f947)

  • Clients targeting the Gemini Developer API now default to API version v1 instead of v1beta.
  • No effect on Gemini Enterprise (Vertex AI) defaults: Clients with vertexai=True / enterprise=True are unaffected by this default change and continue to default to v1beta1.
  • How to configure or restore the previous default via environment variable: Set GOOGLE_GENAI_API_VERSION (works for both Gemini Developer API and Enterprise / Vertex AI clients when no version is set in code):

    # Restores the beta default ('v1beta' on Gemini Developer API, 'v1beta1' on Enterprise / Vertex AI)
    export GOOGLE_GENAI_API_VERSION=beta
    
    # Or set an explicit API version string on either platform (e.g. 'v1', 'v1beta', 'v1beta1')
    export GOOGLE_GENAI_API_VERSION=v1beta

  • How to set the API version in code: Pass api_version in HttpOptions (takes precedence over GOOGLE_GENAI_API_VERSION):

    from google import genai
    from google.genai import types
    
    client = genai.Client(
        http_options=types.HttpOptions(api_version='v1beta')
    )

• Default HTTP client is now httpx2 (was httpx), and httpx is no longer installed by default (51285c8)

  • httpx is no longer installed by default. httpx2 is now the required dependency and default HTTP client.
  • How to restore the previous httpx default via environment variable: Because httpx2 is installed by default, installing google-genai[httpx] alone only makes import httpx available; to switch the SDK's default client back to httpx without code changes, both install the httpx extra and set GOOGLE_GENAI_HTTP_CLIENT=httpx:

    pip install "google-genai[httpx]"
    export GOOGLE_GENAI_HTTP_CLIENT=httpx

  • How to pass an httpx client in code: After installing google-genai[httpx], you can pass httpx.Client / httpx.AsyncClient directly via HttpOptions:

    import httpx
    from google import genai
    from google.genai import types
    
    client = genai.Client(
        http_options=types.HttpOptions(
            httpx_client=httpx.Client(),
            httpx_async_client=httpx.AsyncClient(),
        )
    )

  • Migrating existing httpx code to httpx2: In most cases, updating your imports with import httpx2 as httpx is sufficient.
  • SSL certificate verification: By default, httpx2 uses the OS certificate trust store (via truststore / httpx2.create_ssl_context()) instead of certifi when SSL_CERT_FILE and SSL_CERT_DIR are not set.
  • When httpx vs. httpx2 types matter: Package-specific objects passed in HttpOptions(client_args=..., async_client_args=...) (such as Timeout, Limits, MockTransport / BaseTransport, or custom Auth subclasses) and unwrapped transport exceptions caught from client.models, client.files, etc. (TimeoutException, ConnectError, HTTPError) must match the active HTTP client. (When GOOGLE_GENAI_HTTP_CLIENT is unset or auto, passing httpx objects in HttpOptions will also auto-select the httpx backend if google-genai[httpx] is installed.)

• interactions: CodeExecutionResultStep.result changes from string to the CodeExecutionResultStepResult union. Code that reads result as a string must now check which variant is present and read the string from it. The JSON for text-only results is unchanged.

Features

• Add source_text to AudioTranscriptionConfig and SmartTranscriptionMode. (1ac3c91)
• Add MALFORMED_RESPONSE to FinishReason (6eb8523), refs #2937
• cli: Use gemini-3.5-transcribe as default model for transcribe command (b18fd3c)
• Default Gemini API version to v1 instead of v1beta across SDKs (2d0f947)
• Disable GenerateVideos for Gemini API, update tests/READMEs (8ddc655)
• interactions: Add Office and OpenDocument MIME types (753cc1c)
• interactions: Support multimodal content in CodeExecutionResultStep.result (a216d95)
• Support GOOGLE_GENAI_API_VERSION environment variable across SDKs (2d0f947)
• Switch default HTTP client to httpx2 and use OS trust store by default (51285c8)
• Update discovery doc (5647e1e)

Bug Fixes

• interactions: Retries = attempts - 1 (0f688a6)
• Preserve unknown fields and open-union variants in Interactions models (2eaf2d8)
• Respect configured and default API version for Gemini API file uploads across SDKs (ddc45d0)

Documentation

• Update embedding examples from gemini-embedding-2-preview to gemini-embedding-2 (d97752a)
• Update remaining documentation links from ai.google.dev to aistudio.google.com. (0e34831)

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[release-please]

🤖 Created releases:

• v3.0.0

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