release: 3.19.4

[stainless-app]

Automated Release PR

3.19.4 (2026-04-03)

Full Changelog: v3.19.3...v3.19.4

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Summary by cubic

Release stagehand 3.19.4. Bumps package version and updates generated metadata/stats; no runtime changes.

^{Written for commit b1c8e35. Summary will update on new commits. Review in cubic}

[stainless-app]

🤖 Release is at https://github.com/browserbase/stagehand-python/releases/tag/v3.19.4 🌻

[cubic-dev-ai]

No issues found across 5 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 Application
    participant SDK as Stagehand SDK (Python)
    participant Meta as _version.py
    participant API as Stagehand API

    Note over User,API: Runtime interaction using updated SDK version

    User->>SDK: Initialize Client
    SDK->>Meta: Load package metadata
    Note right of Meta: CHANGED: __version__ = "3.19.4"

    User->>SDK: Call API Method (e.g., .act(), .observe())
    SDK->>SDK: Prepare Request Headers

    Note over SDK: Sets User-Agent header with<br/>"stagehand-python/3.19.4"

    SDK->>API: HTTP Request (with version headers)
    
    alt Successful Request
        API-->>SDK: Response Data
        SDK-->>User: Parsed Object
    else API Error
        API-->>SDK: Error Response (4xx/5xx)
        SDK-->>User: Raise SDK Error
    end

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