stagehand Releases

This release introduces CLI metadata support for sessions, connection flags for existing Browserbase sessions, and support for LLM middleware. It also adds various v4 route stubs and fixes schema parsing and OpenAI agent issues.

Mar 31, 2026

Focuses on v4 route architecture improvements, including selector type unification and Fastify plugin grouping. It also fixes SSE streaming events and applies tool timeout configuration to more tools.

Mar 24, 2026

Adds HTTP header support for custom headers and CDP connections, improves agent behavior regarding captchas and streaming, and expands model provider support to include Bedrock.

Mar 18, 2026

Initial release of the browse CLI, featuring Browserbase Context management capabilities and persistence flags for AI agent browser automation.

Mar 18, 2026

Adds HTTP header support for pages and contexts, introduces CDP connection headers, and launches the browse CLI package alongside restructuring the server package into v3 and v4 directories.

Mar 10, 2026

A maintenance release for the server component fixing session initialization issues and adding Bedrock AI provider support.

Feb 25, 2026

Major release with significant new features including cookie management APIs, server-side caching, multi-region support, and various model provider additions. Includes breaking changes to dotenv loading and mode configuration.

Feb 24, 2026

Patch release fixing target closed errors when rapidly opening and closing popups.

Feb 19, 2026

This release focuses on improvements to RLMs (Reasoning Language Models), updates to GEPA dependencies for Python 3.14 and optimized metrics, and general maintenance fixes including ColBERTv2 error handling.

Feb 5, 2026

Server version 3.6.0 with major improvements including bedrock provider support, enhanced model support, and various bug fixes for screenshot masking and CDP connections.

Feb 4, 2026

Server version 3.5.1 with improved linting, agent metrics, and Vertex provider support.

Jan 24, 2026

A patch release focusing on agent enhancements, including the addition of new page methods like snapshot() and waitForSelector(), improved logging, and the deprecation of legacy DOM mode in favor of hybrid mode.

Jan 22, 2026

A minor patch release that updates the extract tool implementation.

Jan 22, 2026

A maintenance-focused release that includes CI improvements, fixes for RAG tutorials, and exposes new configuration parameters for the Parallel module.

Jan 19, 2026

Enhances model support with GPT-5.2, ensures Gradio 6 compatibility, and implements a robust timeout mechanism for Python execution.

Jan 16, 2026

Updates to the server OpenAPI specification and documentation, including the removal of specific metadata headers and updates to model name syntax.

Jan 13, 2026

Server-side updates introducing hybrid mode documentation, new page methods like waitForTimeout and snapshot, and improvements to agent logging and screenshot handling.

Jan 9, 2026

Introduces tool exclusion capabilities, adds safety confirmation callbacks for specific AI providers, and improves cache management on action failure.

Dec 27, 2025

Stabilizes hybrid mode, improves agent lifecycle management by killing agents on close, and moves Playwright to optional dependencies.

Dec 27, 2025

Introduces the core Hybrid CUA + DOM mode functionality, refactors snapshot logic into submodules, and improves agent lifecycle and testing infrastructure.

Dec 24, 2025