Changes since langchain-openai==1.4.1 release(openai): 1.4.2 (#39322) fix(openai): handle ContextWindowExceededError (#39300) chore: bump the minor-and-patch group across 3 directories with 7 updates (#39187) fix(openai): filter langchain-generated content block IDs (#39209) fix(openai): preserve Responses text options (#39204) fix(openai): redact MCP authorization (#39155) chore(model-profiles):…
Changes since langchain-anthropic==1.5.3 release(anthropic): 1.5.4 (#39277) fix(anthropic): handle tool schemas with unsupported top-level composition (#39273) chore: bump the minor-and-patch group across 3 directories with 7 updates (#39187) fix(anthropic): preserve caller tool_choice (#39206) feat(anthropic): add user_profile_id convenience attribute (#39148)
Changes since langchain-core==1.5.2 release(core): 1.5.3 (#39145) fix(core): fall back to LANGSMITH_API_KEY for gateway (#39115)
Changes since langchain-anthropic==1.5.2 release(anthropic): 1.5.3 (#39109) fix(anthropic): preserve empty thinking field in signature_delta streaming (#38765) fix(anthropic): strip unsupported fields from system message content blocks (#39101)
Changes since langchain-core==1.5.1 release(core): 1.5.2 (#39108) fix(core): handle empty string in gateway env vars (#39107) chore: bump setuptools from 82.0.0 to 83.0.0 in /libs/core (#39032) chore: bump jupyterlab from 4.5.9 to 4.5.10 in /libs/core (#39033) chore: bump setuptools from 80.9.0 to 83.0.0 in /libs/text-splitters (#39029)
Changes since langchain-fireworks==1.5.1 release(fireworks): 1.5.2 (#39093) chore(model-profiles): refresh model profile data (#39092) chore(model-profiles): refresh model profile data (#39084) chore(model-profiles): refresh model profile data (#39050)
Changes since langchain-anthropic==1.5.1 release(anthropic): 1.5.2 (#39056) feat(anthropic): add Claude Opus 5 support (#39054)
Changes since langchain-openai==1.4.0 release(openai): 1.4.1 (#39045) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(openai): correct gpt-5.3-chat-latest profile (#39009)
Changes since langchain-fireworks==1.5.0 release(fireworks): 1.5.1 (#39044) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742)
Changes since langchain-anthropic==1.5.0 release(anthropic): 1.5.1 (#39043) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(anthropic): enable structured output for Claude Opus 4.8 (#39021)
Changes since langchain-core==1.5.0 release(core): 1.5.1 (#39042) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(core): use tool_call_schema cache for BaseTool token counting in count_tokens_approximately (#39020)
Changes since langchain-openrouter==0.2.6 release(openrouter): 0.2.7 (#39022) chore(model-profiles): refresh model profile data (#39010) chore(model-profiles): refresh model profile data (#38990) chore(model-profiles): refresh model profile data (#38927) chore(model-profiles): refresh model profile data (#38905) chore(model-profiles): refresh model profile data (#38876) chore(model-profiles): refr…
Changes since langchain-anthropic==1.4.8 release(anthropic): 1.5.0 (#38985) feat(core): add reasoning_effort as a standard chat model parameter (#38887) fix(anthropic): add advisor_ prefix to builtin tool recognition (#38686) chore(deps): refresh lockfiles (#38746) chore(model-profiles): refresh model profile data (#38689) chore(model-profiles): refresh model profile data (#38663) chore: bump the…
Changes since langchain-fireworks==1.4.4 release(fireworks): 1.5.0 (#38986) feat(core): add reasoning_effort as a standard chat model parameter (#38887) chore: bump langsmith from 0.10.2 to 0.10.6 in /libs/partners/fireworks (#38914) fix: patch Dependabot dependency vulnerabilities (#38853) chore: bump langsmith from 0.9.5 to 0.10.2 in /libs/partners/fireworks (#38830)
Changes since langchain-xai==1.2.2 release(xai): 1.3.0 (#38984) feat(core): add reasoning_effort as a standard chat model parameter (#38887) fix: patch Dependabot dependency vulnerabilities (#38853) chore: bump langsmith from 0.9.5 to 0.10.2 in /libs/partners/xai (#38832) chore(deps): refresh lockfiles (#38746) chore(model-profiles): refresh model profile data (#38739) chore: bump langsmith from 0…
Changes since langchain-openai==1.3.5 release(openai): 1.4.0 (#38983) chore: bump pillow from 12.2.0 to 12.3.0 in /libs/partners/openai (#38999) feat(core): add reasoning_effort as a standard chat model parameter (#38887) chore(model-profiles): refresh model profile data (#38797)
Changes since langchain-core==1.4.9 release(core): 1.5.0 (#38978) feat(core): add reasoning_effort as a standard chat model parameter (#38887) chore: bump soupsieve from 2.8 to 2.8.4 in /libs/core (#38750) chore: bump mistune from 3.2.1 to 3.3.0 in /libs/core (#38783)
Changes since langchain==1.3.13 release(langchain): 1.3.14 (#38883) fix(langchain): only retry retryable exceptions in ToolRetryMiddleware (#38845) feat(langchain): ToolErrorMiddleware (#38781)
Changes since langchain==1.3.12 release(langchain): 1.3.13 (#38787) feat(langchain): add meta extra and support langchain-meta in init_chat_model (#38786) feat(openai): support explicit prompt caching (#38762) chore(deps): refresh lockfiles (#38746)
Changes since langchain-openai==1.3.4 release(openai): 1.3.5 (#38785) feat(openai): support explicit prompt caching (#38762) chore(model-profiles): refresh model profile data (#38774)
Changes since langchain-fireworks==1.4.3 release(fireworks): 1.4.4 (#38753) fix(fireworks): report cached prompt token usage (#38751) chore(deps): refresh lockfiles (#38746) chore(model-profiles): refresh model profile data (#38663) chore: bump pytest from 9.1.0 to 9.1.1 in /libs/partners/fireworks (#38594) chore: bump langsmith from 0.8.18 to 0.9.5 in /libs/partners/fireworks (#38595) docs(firewo…
Changes since langchain-openai==1.3.3 release(openai): 1.3.4 (#38731) fix(openai): suppress Pydantic serializer warning on structured output parsed field (#37727) test(openai): skip Codex VCR tests before cassette setup (#38690) chore: bump the minor-and-patch group across 3 directories with 11 updates (#38587) chore: bump langgraph-checkpoint from 4.1.0 to 4.1.1 in /libs/partners/openai (#38476)…
Changes since langchain==1.3.11 release(langchain): 1.3.12 (#38730) fix(langchain): propagate interrupts through ToolRetryMiddleware (#38722) fix(langchain): avoid shared process-group kill in shell middleware (#36359) fix(langchain): sanitize anthropic cache markers on fallback retries (#37867) style: fix some ruff preview rules in langchain_v1 and standard-tests (#38657) chore(langchain): add ty…
Changes since langchain-core==1.4.8 release(core): 1.4.9 (#38728) fix(core): improve langsmith loader error messages (#35648) fix(core): output parser bugs in xml.py and pydantic.py (#35641) style(core): fix some ruff preview rules (#38656) fix(core): avoid dict shadowing in language models (#38480) fix(core): _parse_google_docstring mishandling continuation lines with colons (#35680) fix(core): a…
Changes since langchain-mistralai==1.1.5 release(mistralai): 1.1.6 (#38684) feat(mistralai): surface citation metadata from chat responses (#37008) chore(model-profiles): refresh model profile data (#38663) chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/partners/mistralai (#38302) chore: bump langsmith from 0.8.5 to 0.8.18 in /libs/partners/mistralai (#38304) chore(model-profiles): refresh model p…
Changes since langchain==1.3.10 release(langchain): 1.3.11 (#38377) fix(langchain,openai): only set strict=True on tools for OpenAI-compatible models in ProviderStrategy (#38370) chore: bump pydantic-settings from 2.12.0 to 2.14.2 in /libs/langchain_v1 (#38279) chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/langchain_v1 (#38280) chore: bump langsmith from 0.8.9 to 0.8.18 in /libs/langchain_v1 (#38…
Changes since langchain-openrouter==0.2.5 release(openrouter): 0.2.6 (#38681) fix(openrouter): support default_headers for custom HTTP header injection (#36582) chore(model-profiles): refresh model profile data (#38663)
Changes since langchain-openrouter==0.2.4 release(openrouter): 0.2.5 (#38553) fix(openrouter): deduplicate repeated finish metadata (#38552) fix(openrouter): strip Responses reasoning IDs (#38383)
Changes since langchain-anthropic==1.4.7 release(anthropic): 1.4.8 (#38490) fix(anthropic): keep initial text on content_block_start (#38442) chore: bump langgraph-checkpoint from 4.1.0 to 4.1.1 in /libs/partners/anthropic (#38479) fix(core): add messages to bare raise ValueError calls (#38158)
Changes since langchain-fireworks==1.4.2 release(fireworks): 1.4.3 chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/partners/fireworks (#38314) chore: bump langsmith from 0.8.16 to 0.8.18 in /libs/partners/fireworks (#38313) chore: bump langsmith from 0.8.14 to 0.8.16 in /libs/partners/fireworks (#38235) chore: bump pytest from 9.0.3 to 9.1.0 in /libs/partners/fireworks (#38233) chore(model-profiles…