LangChain releases
152 articles archived · Visit source ↗ · RSS
-
LangChain releases dev-tools 2d ago
langchain-anthropic==1.7.6
Changes since langchain-anthropic==1.7.5 release(anthropic): 1.7.6 ( #41221 ) chore(model-profiles): refresh model profile data ( #41145 ) feat(core,anthropic,openai): declare mid-conversation support in model profiles ( #41180 ) chore(deps): bump langgraph-sdk from 0.4.4 to…
26 -
langchain==1.4.4
Changes since langchain==1.4.3 release(langchain): 1.4.4 ( #41163 ) fix(langchain): (SummarizationMiddleware) retry summary step on context overflow ( #41159 ) chore(deps): bump fsspec from 2026.6.0 to 2026.9.0 in /libs/langchain_v1 ( #41097 ) chore(deps): bump multidict from…
36 -
langchain-core==1.6.9
Changes since langchain-core==1.6.8 release(core): 1.6.9 ( #41160 ) feat(core): accept a callable in with_retry ( #41158 )
31 -
langchain-openai==1.7.0
Changes since langchain-openai==1.6.7 release(openai): 1.7.0 ( #41154 ) feat(openai): support decisions api ( #41125 ) chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/openai ( #41096 ) chore(deps): bump langgraph-sdk from 0.4.2 to 0.4.4 in…
23 -
langchain-fireworks==1.7.1
Changes since langchain-fireworks==1.7.0 release(fireworks): 1.7.1 ( #41137 ) fix(fireworks): preserve reasoning in streaming and tool loops ( #41093 ) chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/fireworks ( #41100 ) chore(deps): bump langgraph-sdk from…
38 -
langchain-huggingface==1.2.3
Changes since langchain-huggingface==1.2.2 fix(huggingface): use a supported Scaleway model in streaming test ( #41095 ) chore(deps): bump langgraph-sdk from 0.4.4 to 0.4.6 in /libs/partners/huggingface ( #41098 ) chore(deps): bump langgraph-sdk from 0.4.2 to 0.4.4 in…
12 -
langchain-core==1.6.7
Changes since langchain-core==1.6.6 release(core): 1.6.7 ( #41087 ) fix(core): include openai redacted_content in v1 output for bedrock converse ( #41086 ) fix(core): python 3.14 hardening around inspect.signature ( #41059 ) chore(deps): bump notebook from 7.5.7 to 7.6.3 in…
6 -
langchain-text-splitters==1.1.3
Changes since langchain-text-splitters==1.1.2 release(text-splitters): 1.1.3 ( #41001 ) chore(deps): bump the minor-and-patch group across 3 directories with 4 updates ( #40969 ) chore(deps): bump tornado from 6.5.9 to 6.5.10 in /libs/text-splitters ( #40971 ) chore(deps): bump…
4 -
langchain-openai==1.6.7
Changes since langchain-openai==1.6.6 release(openai): 1.6.7 ( #40933 ) chore(model-profiles): refresh model profile data ( #40924 ) test(openai): drop retired completions live tests ( #40910 ) chore(model-profiles): refresh model profile data ( #40869 ) feat(openai): discover…
11 -
langchain-fireworks==1.7.0
Changes since langchain-fireworks==1.6.3 hotfix(fireworks): replace unavailable integration test model ( #40890 ) release(fireworks): 1.7.0 ( #40889 ) feat(fireworks): add prompt caching middleware ( #38823 ) fix(fireworks): classify mid-stream read timeouts ( #40874 )…
29 -
langchain==1.4.3
Changes since langchain==1.4.2 release(langchain): 1.4.3 ( #40888 ) fix(langchain): sanitize cache settings for fallback models ( #40886 ) feat(langchain): support Bedrock Mantle chat models in init_chat_model ( #40837 ) fix(langchain): recognize GPT-6 structured output without…
31 -
langchain-fireworks==1.6.3
Changes since langchain-fireworks==1.6.2 release(fireworks): 1.6.3 ( #40834 ) fix(fireworks): declare native PDF inputs unsupported ( #40814 ) fix(fireworks): preserve malformed tool arguments as diagnostic JSON ( #40818 ) chore(model-profiles): refresh model profile data (…
27 -
langchain-core==1.6.5
Changes since langchain-core==1.6.4 release(core): 1.6.5 ( #40816 ) fix(core): abbreviate long tool IDs in XML buffer strings ( #40792 )
37 -
langchain-openai==1.6.6
Changes since langchain-openai==1.6.5 release(openai): 1.6.6 ( #40800 ) fix(openai): raise on error events in stream path ( #40791 )
8 -
langchain-anthropic==1.7.4
Changes since langchain-anthropic==1.7.3 chore(anthropic): fix integration test cassette ( #40790 ) release(anthropic): 1.7.4 ( #40786 ) fix(anthropic): add Opus 5.5 and GPT-6 profile augmentations ( #40785 ) feat(anthropic,openai): mid-conversation tool changes on SystemMessage…
17 -
langchain-anthropic==1.7.3
Changes since langchain-anthropic==1.7.2 release(anthropic): 1.7.3 ( #40773 ) chore(model-profiles): refresh anthropic model profile data ( #40772 ) fix(anthropic): auto-route with_structured_output to method="json_schema" for fable and opus 5.5 ( #40766 ) chore(anthropic):…
38 -
langchain-fireworks==1.6.2
Changes since langchain-fireworks==1.6.1 fix(fireworks): use current completions model in LLM tests ( #40740 ) hotfix(fireworks): use available model in LLM tests ( #40737 ) release(fireworks): 1.6.2 ( #40735 ) chore(model-profiles): refresh model profile data ( #40665 )…
24 -
langchain-deepseek==1.1.1
Changes since langchain-deepseek==1.1.0 fix(deepseek,infra): resolve compatible minimum OpenAI dependencies, bump min ver ( #40738 ) release(deepseek): 1.1.1 ( #40734 ) chore(deps): bump anyio from 4.11.0 to 4.14.2 in /libs/partners/deepseek ( #40641 ) chore(model-profiles):…
5 -
langchain-openrouter==0.2.9
Changes since langchain-openrouter==0.2.8 release(openrouter): 0.2.9 ( #40736 ) chore(model-profiles): refresh model profile data ( #40705 ) chore(model-profiles): refresh model profile data ( #40685 ) chore(model-profiles): refresh model profile data ( #40665 ) chore(deps):…
23 -
langchain-openai==1.6.3
Changes since langchain-openai==1.6.2 release(openai): 1.6.3 ( #40719 ) fix(openai): expose inferred Responses API routing at initialization ( #40715 ) chore(deps): bump anyio from 4.11.0 to 4.14.2 in /libs/partners/openai ( #40629 ) fix(openai): support GPT-6 request…
11 -
langchain-core==1.6.4
Changes since langchain-core==1.6.3 release(core): 1.6.4 ( #40718 ) chore(core): deprecate chat message history ( #40711 ) chore(deps): bump anyio from 4.12.0 to 4.14.2 in /libs/core ( #40634 ) chore(deps): bump soupsieve from 2.8.4 to 2.9 in /libs/core ( #40574 )
18 -
langchain-typesafe==0.0.1a3
Initial release release(typesafe): 0.0.1a3 ( #40693 ) feat(typesafe): make classifier questions invocation-scoped ( #40659 ) release(typesafe): bump to 0.0.1a2 ( #40576 ) feat(typesafe): experimental AutoModeMiddleware ( #40545 ) feat(typesafe): experimental…
35 -
langchain-typesafe==0.0.1a2
Initial release release(typesafe): bump to 0.0.1a2 ( #40576 ) feat(typesafe): experimental AutoModeMiddleware ( #40545 ) feat(typesafe): experimental ModelRouterMiddleware ( #40543 ) fix(typesafe): trace usage metadata ( #40570 ) feat(typesafe): TypeSafeClassifier ( #40542 )
31 -
langchain-typesafe==0.0.1a1
Initial release feat(typesafe): TypeSafeClassifier ( #40542 )
22 -
langchain-core==1.6.3
Changes since langchain-core==1.6.2 release(core): 1.6.3 ( #40407 ) feat(core): Allow model name and provider tracing metadata override based on gateway response ( #40406 ) test(core): cover the deprecated .text() access path ( #40243 ) docs(core): remove stale Args/Raises…
38 -
-
langchain-openai==1.6.1
Changes since langchain-openai==1.6.0 fix(openai): bump max_completion_tokens in cache breakpoint integration test ( #40284 ) release(openai): 1.6.1 ( #40268 ) chore(model-profiles): refresh model profile data ( #40217 ) fix(openai): support Azure AD auth with OpenAI 3.8 (…
33 -
langchain-core==1.6.2
Changes since langchain-core==1.6.1 release(core): 1.6.2 ( #40209 ) feat(openai): support async tools ( #40208 ) chore(deps): bump mistune from 3.3.0 to 3.3.3 in /libs/core ( #40150 ) chore(deps): bump tornado from 6.5.7 to 6.5.8 in /libs/core ( #40113 ) fix(core): avoid…
15 -
langchain==1.4.0
Changes since langchain==1.3.18 docs(langchain): runnable langchain.mcp examples ( #39976 ) feat(langchain): langchain.mcp namespace, MCPAdapter ( #39939 ) perf(anthropic,langchain): omit middleware trace inputs ( #40098 ) fix(langchain): include model destination in agent tool…
28 -
langchain==1.4.0a4
Initial release release(langchain): 1.4.0a4 test(langchain): cover mixed-era ClientGroup and group elicitation Update libs/langchain_v1/langchain/mcp/adapter.py fix(langchain): drive MCP elicitation via member session for fastmcp 4.0.1 fix(sdk): use latest fastmcp and rm…
33 -
langchain==1.4.0a3
Third alpha of the 1.4.0 line. This release focuses on the new langchain.mcp namespace for adapting MCP servers into LangChain tools. langchain.mcp highlights MCPAdapter adapts any target fastmcp.Client accepts — a URL, a local script, an in-process server, an MCPConfig naming…
36 -
langchain==1.4.0a2
Alpha preview of langchain.mcp — a first-party adapter that turns any MCP server into LangChain tools you can hand straight to create_agent . Connection handling is FastMCP 's, so its client features are available as-is rather than re-implemented behind a narrower interface. pip…
32 -
langchain==1.4.0a1
Initial release fix(langchain): name the content type MCP conversion could not handle release(langchain): 1.4.0a1 test(langchain): skip MCP tests on a pydantic older than mcp supports test(langchain): drive MCP tests through FastMCP's own utilities fix(langchain/mcp): review…
25 -
langchain-core==1.6.1
Changes since langchain-core==1.6.0 revert: release(core): 1.6.2 ( #39971 ) release(core): 1.6.2 ( #39967 ) fix(core): shore up indexing in genai v1 streaming content ( #39964 ) fix(core): make StructuredTool JSON-serializable ( #39631 ) chore(deps): bump minor and patch…
21 -
-
langchain-anthropic==1.7.0
Changes since langchain-anthropic==1.6.1 release(anthropic): 1.7.0 ( #39963 ) feat(anthropic): support top-level param for skills via container ; updates thinking display mode ( #39962 ) feat(anthropic): support 1.0 sdk ( #39938 ) fix(anthropic): auto-append…
28