Sourced from langchain's releases.

langchain==1.3.9

Changes since langchain==1.3.8

release(anthropic): 1.4.6 (#38105) release(langchain): 1.3.9 (#38104) fix(langchain,anthropic): confine file-search results and tighten anthropic allowed_prefixes (#38106)

langchain==1.3.8

Changes since langchain==1.3.7

release(langchain): 1.3.8 (#38096) style(core,langchain,langchain-classic,partners): replace double backticks in docstrings (#38095) release(core): 1.4.6 (#38061) chore(langchain): add overloads to create_agent (#34309) chore(infra): bump mypy to 2.1 and unify type-check config across the monorepo (#36470) fix(langchain): support async middleware decorator typing (#34584) fix(langchain): tighten structured output model fallbacks (#38042) release(anthropic): 1.4.5 (#38036) hotfix(core): bump lockfile(s) (#38032) refactor(langchain): refactor test_create_agent_tool_validation (#34443)

langchain==1.3.7

Changes since langchain==1.3.6

release(langchain): 1.3.7 (#38024) style(langchain): add ruff rules ARG (#34435) feat(langchain): add ProviderToolSearchMiddleware (#37969) chore(langchain): activate mypy warn_return_any (#34249) test(langchain): mark legacy trigger view for 2.0 removal (#38002)

langchain==1.3.6

Changes since langchain==1.3.5

release(langchain): 1.3.6 (#38001) fix(langchain): preserve summarization trigger compatibility (#38000)

langchain==1.3.5

Changes since langchain==1.3.4

release(langchain): 1.3.5 (#37998) feat(langchain): port AND-capable trigger conditions to SummarizationMiddleware (#34576) hotfix(openai): min core dep (#37990) feat(openai): support apply_patch built-in tool (#37157) chore: bump pyarrow from 21.0.0 to 23.0.1 in /libs/langchain_v1 (#37930) chore: bump dependencies (#37892) chore: bump aiohttp from 3.13.4 to 3.14.0 in /libs/langchain_v1 (#37888)

langchain==1.3.4

Changes since langchain==1.3.3

... (truncated)

• 3bfb6a3 release(langchain): 1.3.9 (#38104)
• dcaf779 fix(langchain,anthropic): confine file-search results and tighten anthropic `...
• 0392b6b fix(core): fix Pydantic v1 support in tools/runnable (#33698)
• f6d63bc release(langchain): 1.3.8 (#38096)
• 5d20596 style(core,langchain,langchain-classic,partners): replace double backticks in...
• fb55c66 chore: bump langsmith from 0.8.9 to 0.8.14 in /libs/partners/huggingface (#38...
• 51daae5 chore: bump langsmith from 0.8.9 to 0.8.14 in /libs/partners/chroma (#38092)
• 70e9579 chore: bump langsmith from 0.8.9 to 0.8.14 in /libs/partners/fireworks (#38093)
• 6c0e9af chore: bump langsmith from 0.8.9 to 0.8.14 in /libs/partners/xai (#38094)
• 222dc84 ci(infra): clarify early PR auto-close guidance (#38090)
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