[Release] langchain-ai/langchain langchain-mistralai==1.1.3: langchain-mistralai==1.1.3

langchain-mistralai version 1.1.3 introduces image input support for human messages and updates core streaming capabilities with content-block-centric streaming (v2). The release includes dependency updates, security patches (CVE-2026-4539 via pygments), model profile refreshes, and infrastructure improvements. Key changes involve bumping minimum core versions, updating langsmith to 0.7.31, and standardizing integration test invocation across partner packages.

Key Points

• •Added image input support for human messages in Mistral AI integration
• •Implemented content-block-centric streaming (v2) in core for improved streaming architecture
• •Security patch: upgraded pygments to >=2.20.0 across all packages to address CVE-2026-4539
• •Bumped langchain-core minimum version to 1.2.21 for compatibility
• •Updated langsmith dependency from 0.6.3 to 0.7.31 for enhanced functionality
• •Refreshed model profile data to ensure accurate model configurations
• •Standardized integration test invocation across partner packages for consistency
• •Updated pytest to 9.0.3 and added pytest-xdist for parallel test execution
• •Improved CI/CD infrastructure with corrected lint_diff relative paths and suppressed streaming output
• •Bumped requests library from 2.32.5 to 2.33.0 for security and stability

Workflow Diagram

Concepts