release: 3.20.0

[stainless-app]

Automated Release PR

3.20.0 (2026-04-08)

Full Changelog: v3.19.5...v3.20.0

Features

• Bedrock auth passthrough (9463fa4)

Bug Fixes

• client: preserve hardcoded query params when merging with user params (feac39d)

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🔗 Stainless website
📚 Read the docs
🙋 Reach out for help or questions

[stainless-app]

🧪 Testing

To try out this version of the SDK:

pip install 'https://pkg.stainless.com/s/stagehand-python/9463fa49cb839abbb2c6a1adb0d053e5006216a7/stagehand-3.19.5-py3-none-any.whl'

Expires at: Fri, 08 May 2026 18:23:44 GMT
Updated at: Wed, 08 Apr 2026 18:23:44 GMT

[cubic-dev-ai]

No issues found across 6 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

Architecture diagram

sequenceDiagram
    participant User as User/Service
    participant Client as Stagehand Client
    participant Build as _build_request()
    participant HTTPX as httpx.Request

    Note over User,HTTPX: Request Preparation Flow

    User->>Client: call_api(url="/path?fixed=1", params={"user": "2"})
    Client->>Build: Initialize request construction
    
    Build->>Build: _prepare_url(options.url)
    
    alt NEW: Both URL query and params dictionary exist
        Note right of Build: Merging logic to prevent parameter loss
        Build->>Build: CHANGED: Extract params from URL string
        Build->>Build: CHANGED: Merge URL params with user params dict
        Build->>Build: CHANGED: Strip query from raw_path (prevent duplication)
    else Only URL query or only params dict
        Build->>Build: Use standard httpx parameter handling
    end

    Build->>HTTPX: Create Request object
    HTTPX-->>Build: request (with merged query string)
    Build-->>Client: Prepared request
    Client->>User: Execute and return response

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