[Release] langchain-ai/langchain langchain-text-splitters==1.1.1: langchain-text-splitters==1.1.1

langchain-text-splitters version 1.1.1 was released with bug fixes including prevention of JSFrameworkTextSplitter mutating internal separators, resolution of a Server-Side Request Forgery vulnerability in HTMLHeaderTextSplitter, and fixes to HTMLSemanticPreservingSplitter. The release also includes dependency updates, code style improvements with ruff linting, and new features like model_kwargs support for SentenceTransformersTokenTextSplitter.

Key Points

• •Fixed JSFrameworkTextSplitter mutating self._separators on each split_text() call to prevent state corruption
• •Patched Server-Side Request Forgery (SSRF) vulnerability in HTMLHeaderTextSplitter.split_text_from_url method
• •Added model_kwargs parameter to SentenceTransformersTokenTextSplitter for enhanced configuration flexibility
• •Fixed HTMLSemanticPreservingSplitter to correctly reverse preserved elements iterator and handle nested preserved elements
• •Upgraded critical dependencies including langsmith (0.4.31→0.6.3), transformers (5.1.0→5.2.0), urllib3 (2.6.3), and mypy/ruff tooling
• •Improved code quality through ruff linting upgrades (0.14.11→0.15), added type checking targets, and enforced absolute imports across packages
• •Fixed typo in documentation ('seperator'→'separator') and added comprehensive edge case tests for CharacterTextSplitter
• •Enhanced project infrastructure with CI checks for out-of-date lockfiles and Python 3.14 dependency compatibility

Concepts