langchain-ai/langchain

chore: add model profile info to agent files infra internal

chore(model-profiles): refresh model profile data integration openrouter

chore(infra): add GitHub App token generation step infra github_actions internal

fix(infra): fix trailing comma regex in profile generation script integration fix model-profiles deepseek internal

chore(model-profiles): refresh model profile data integration anthropic deepseek fireworks groq huggingface mistralai openai perplexity xai openrouter

feat(infra): model profile bump tool github_actions feature model-profiles internal

fix(core): add __str__ to BaseMessage for intuitive text content output core fix external

release(core): 1.2.14 core release dependencies

core: Add __str__ to BaseMessage for intuitive text content output core external

chore(core): remove `langserve` from sys info util, add `deepagents` core infra internal

fix(core): improve typing/docs for on_chat_model_start to clarify required positional args core fix external

fix(core): prevent IndexError in handle_event when on_chat_model_start fallback lacks args core fix external

style: fix some ruff noqa core langchain standard-tests dependencies linting external

revert: accept integer temperature values in _get_ls_params core

release(text-splitters): 1.1.1 text-splitters dependencies internal

fix(core): accept integer temperature values in _get_ls_params core fix external

fix(text-splitters): prevent JSFrameworkTextSplitter from mutating self._separators on each split_text() call text-splitters fix external

fix(langchain-classic): prevent duplicate output in TodoListMiddleware when model returns text and write_todos simultaneously langchain fix external

feat(anthropic): Support web_search_20260209 with native dynamic web result filtering integration feature anthropic external

docs(core): update load note to be precise documentation core internal

fix(openai): accept valid responses that are falsy at runtime integration fix openai

fix(langchain): use profile-based check for structured output with tools core langchain fix model-profiles external

fixes/34442 langchain external

feat: Add ModelsLab tools (image generation, utilities) feature external

fix(core): accept int temperature in _get_ls_params for LangSmith tracing core fix external

perf(core): defer specific `langsmith` imports to reduce import time core performance internal

Rename .mcp.json to .mcp.json external

chore: bump model profiles integration infra model-profiles anthropic deepseek fireworks groq huggingface mistralai perplexity xai internal openrouter

chore(anthropic): add version integration infra github_actions anthropic internal

release(openai): 1.1.10 integration release dependencies openai internal