[Release] langchain-ai/langchain langchain-deepseek==1.1.0: langchain-deepseek==1.1.0

langchain-deepseek version 1.1.0 is a maintenance and feature release that includes dependency updates, infrastructure improvements, and bug fixes. Key changes involve bumping core dependencies (langchain-core, langsmith), security patches (Pygments CVE fix), and enhancements to model profile handling and streaming capabilities. The release standardizes integration testing, improves Azure endpoint detection, and adds content-block-centric streaming support from langchain-core.

Key Points

• •Upgraded langchain-core from 1.3.2 to 1.3.3 and langsmith from 0.6.3 to 0.8.3 for improved core functionality
• •Applied security patch for Pygments (CVE-2026-4539) across all packages by bumping to version >=2.20.0
• •Fixed Azure endpoint detection with proper URL parsing and improved tool choice handling for Azure deployments
• •Added content-block-centric streaming (v2) support from langchain-core for enhanced streaming capabilities
• •Standardized integration test invocation across partner packages and added pytest-xdist for parallel testing
• •Implemented base_url as an alias for api_base parameter for improved API configuration flexibility
• •Refreshed model profile data multiple times with new fields (text_inputs, text_outputs) and stable sorting by model ID
• •Bumped minimum langchain-core version to 1.2.21 and langchain-tests floor to 1.1.9 for compatibility
• •Updated various dependencies including urllib3 (2.6.3→2.7.0), idna (3.10→3.15), and requests (2.32.5→2.33.0)
• •Enhanced pyproject.toml files and added type checking targets via Makefile for improved development workflow

Workflow Diagram

Concepts