Changes since langchain-core==1.2.24
release(core): 1.2.25 (#36473) fix(core): harden check for txt files in deprecated prompt loading functions (#36471) fix(core): fixed typos in the documentation (#36459)
Credit to Jeff Ponte (@JDP-Security) for reporting the symlink resolution issue resolved in #36471.
Changes since langchain-core==1.2.23
release(core): 1.2.24 (#36434) feat(core): impute placeholder filenames for OpenAI file inputs (#36433) chore: pygments>=2.20.0 across all packages (CVE-2026-4539) (#36385) fix(core): add "computer" to _WellKnownOpenAITools (#36261)
Changes since langchain==1.2.13
release(langchain): 1.2.14 (#36396)
chore: pygments>=2.20.0 across all packages (CVE-2026-4539) (#36385)
test(langchain): cover runtime recursion limit override in create_agent (#36376)
perf(langchain): reduce init speed by 15% (#36375)
fix(langchain): update recursion limit for create_agent (#36351)
fix(infra): correct lint_diff relative paths in package makefiles (#36333)
chore: bump cryptography from 46.0.5 to 46.0.6 in /libs/langchain_v1 (#36324)
fix(langchain): recognize ChatAnthropicVertex in _get_approximate_token_counter (#36320)
chore(langchain): remove unnecessary description for toods list as a group (#36315)
chore(langchain): add async implementation to todolist and test (#36313)
chore(langchain): speed up todo list middleware init (#36311)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/langchain_v1 (#36241)
chore(partners): bump langchain-core min to 1.2.21 (#36183)
fix(core,model-profiles): add missing ModelProfile fields, warn on schema drift (#36129)
fix(langchain,langchain-classic): update model provider classes for Azure AI Foundry (#35812)
Changes since langchain-openrouter==0.2.0
release(openrouter): 0.2.1 (#36348)
fix(openrouter): pass attribution headers via httpx default_headers (#36347)
chore(model-profiles): refresh model profile data (#36267)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/partners/openrouter (#36247)
Changes since langchain-core==1.2.22
release(core): 1.2.23 (#36323) revert: Revert "fix(core): trace invocation params in metadata" (#36322) chore: bump requests from 2.32.5 to 2.33.0 in /libs/core (#36243)
Changes since langchain-exa==1.0.0
release(exa): 1.1.0 (#36278)
feat(exa): update default search type from neural to auto (#36125)
chore: bump requests from 2.32.5 to 2.33.0 in /libs/partners/exa (#36255)
chore(partners): bump langchain-core min to 1.2.21 (#36183)
ci: suppress pytest streaming output in CI (#36092)
ci: avoid unnecessary dep installs in lint targets (#36046)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/exa (#35869)
chore(deps): bump langsmith from 0.4.31 to 0.6.3 in /libs/partners/exa (#35158)
chore: add make type target (#35015)
revert: "chore: add typing target in Makefile" (#35013)
chore: add typing target in Makefile (#35012)
chore: enrich pyproject.toml files (#34980)
chore(deps): bump the uv group across 20 directories with 3 updates (#34941)
chore: upgrade urllib3 to 2.6.3 (#34940)
chore: update twitter URLs (#34736)
chore: ban relative imports on all packages (#34691)
chore: update core dep in lockfiles (#34216)
chore: update pyproject.toml url entries (#33587)
Changes since langchain-openrouter==0.1.0
release(openrouter): 0.2.0 (#36227)
feat(openrouter): add app_categories field for marketplace attribution (#36205)
chore(openrouter): update URL/title (#36204)
chore(model-profiles): refresh model profile data (#36195)
chore(partners): bump langchain-core min to 1.2.21 (#36183)
fix(core,model-profiles): add missing ModelProfile fields, warn on schema drift (#36129)
chore(model-profiles): refresh model profile data (#36123)
chore(model-profiles): refresh model profile data (#36099)
ci: suppress pytest streaming output in CI (#36092)
ci: avoid unnecessary dep installs in lint targets (#36046)
chore(model-profiles): refresh model profile data (#35959)
chore(model-profiles): refresh model profile data (#35784)
feat(model-profiles): new fields + Makefile target (#35788)
chore(model-profiles): refresh model profile data (#35646)
chore(model-profiles): refresh model profile data (#35593)
Changes since langchain-core==1.2.21
release(core): 1.2.22 (#36201)
fix(core): validate paths in prompt.save and load_prompt, deprecate methods (#36200)
Changes since langchain-openai==1.1.11
fix(openai): bump min core version (#36180)
release(openai): 1.1.12 (#36178)
fix(core,model-profiles): add missing ModelProfile fields, warn on schema drift (#36129)
fix(openai): support phase parameter (#36161)
fix(openai): preserve namespace field in streaming function_call chunks (#36108)
ci: suppress pytest streaming output in CI (#36092)
ci: avoid unnecessary dep installs in lint targets (#36046)
chore(model-profiles): refresh model profile data (#36039)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/openai (#35860)
fix(openai): add type: message to Responses API input items (#35693)
perf(.github): set a timeout on get min versions HTTP calls (#35851)
feat(model-profiles): new fields + Makefile target (#35788)
fix(openai): close PIL Image handles in token counting to prevent fd leak (#35742)
fix(openai): typo (#35763)
chore(model-profiles): refresh model profile data (#35754)
Changes since langchain-core==1.2.20
release(core): 1.2.21 (#36179)
fix(core,model-profiles): add missing ModelProfile fields, warn on schema drift (#36129)
chore(core): remove stale blockbuster allowlist for deleted context module (#36168)
ci: suppress pytest streaming output in CI (#36092)
Changes since langchain==1.2.12
release(langchain): 1.2.13 (#36111)
ci: suppress pytest streaming output in CI (#36092)
feat: Add LangSmith integration metadata to create_agent and init_chat_model (#35810)
ci: avoid unnecessary dep installs in lint targets (#36046)
chore: bump pyasn1 from 0.6.2 to 0.6.3 in /libs/langchain_v1 (#36029)
chore: bump pyjwt from 2.10.1 to 2.12.0 in /libs/langchain_v1 (#36024)
fix(langchain): export Runtime from agents.middleware (#35975)
chore: bump locks, lint (#35985)
fix(openai): add type: message to Responses API input items (#35693)
chore: bump black from 25.11.0 to 26.3.1 in /libs/langchain_v1 (#35802)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/langchain_v1 (#35807)
chore(langchain): add baseten to _BUILTIN_PROVIDERS (#35777)
Changes since langchain-core==1.2.19
release(core): 1.2.20 (#36085)
fix(core): trace invocation params in metadata (#36080)
feat: Add LangSmith integration metadata to create_agent and init_chat_model (#35810)
feat(core): harden anti-ssrf (#35960)
ci: avoid unnecessary dep installs in lint targets (#36046)
docs(core): document base_url in mermaid api (#35961)
chore: bump orjson from 3.11.5 to 3.11.6 in /libs/core (#35805)
chore: housekeeping (#35850)
Changes since langchain-anthropic==1.3.5
release(anthropic): 1.4 (#36018) feat(anthropic): AnthropicPromptCachingMiddleware: apply explicit caching to system message and tool definitions (#35969) feat(anthropic): delegate cache_control kwarg to anthropic top-level param (#35967) chore(model-profiles): refresh model profile data (#35959) chore: bump orjson from 3.11.5 to 3.11.6 in /libs/partners/anthropic (#35867)
Changes since langchain-anthropic==1.3.4
release(anthropic): 1.3.5 (#35873)
fix(anthropic): Ignore general usage cache_creation fields if more specific fields are set (#35845)
perf(.github): set a timeout on get min versions HTTP calls (#35851)
feat(model-profiles): new fields + Makefile target (#35788)
fix(anthropic): support eager_input_streaming (#35779)
fix(anthropic): move _make_message_chunk_from_anthropic_event to instance method (#35670)
chore: bump langgraph from 1.0.8 to 1.0.10rc1 in /libs/partners/anthropic (#35614)
fix(anthropic): update integration test (#35577)
fix(anthropic): drop forced tool_choice when thinking is enabled (#35544)
chore: bump langgraph-checkpoint from 3.0.1 to 4.0.0 in /libs/partners/anthropic (#35450)
Changes since langchain-mistralai==1.1.1
release(mistralai): 1.1.2 (#35835)
feat(model-profiles): new fields + Makefile target (#35788)
fix(model-profiles): sort generated profiles by model ID for stable diffs (#35344)
chore: bump model profiles (#35294)
fix(mistralai): update test (#35270)
fix(mistralai): update exception retry logic in embeddings (#35238)
fix(mistralai): fix NameError in RunnableWithFallbacks.__getattr__ when resolving type hints (#35172)
chore(deps): bump langsmith from 0.4.31 to 0.6.3 in /libs/partners/mistralai (#35164)
feat(model-profiles): add text_inputs and text_outputs (#35084)
chore: add make type target (#35015)
revert: "chore: add typing target in Makefile" (#35013)
chore: add typing target in Makefile (#35012)
chore: enrich pyproject.toml files (#34980)
chore(deps): bump the uv group across 20 directories with 3 updates (#34941)
chore: upgrade urllib3 to 2.6.3 (#34940)
docs: add missing module-level docstrings to partner integrations (#34838)
chore(deps): bump the uv group across 8 directories with 6 updates (#34773)
chore: update twitter URLs (#34736)
chore: ban relative imports on all packages (#34691)
fix: typo: saved the world 'wether' -> 'whether' (#34524)
Changes since langchain-classic==1.0.2
release(langchain): 1.0.3 (#35834) chore(core): move BaseCrossEncoder to langchain-core (#35809) chore: bump tornado from 6.5.2 to 6.5.5 in /libs/langchain (#35773) release(langchain_v1): 1.2.11 (#35723) chore: bump the minor-and-patch group across 3 directories with 7 updates (#35605) chore: bump types-pytz from 2025.2.0.20251108 to 2026.1.1.20260304 in /libs/langchain (#35592) chore: bump packaging from 24.2 to 26.0 in /libs/langchain (#35591)
Changes since langchain-core==1.2.18
release(core): 1.2.19 (#35832) chore(core): move BaseCrossEncoder to langchain-core (#35809) chore: bump tornado from 6.5.2 to 6.5.5 in /libs/core (#35775)
Changes since langchain==1.2.11
release(langchain_v1): 1.2.12 (#35770) feat: tracing for wrap model + tool call (#35765)
Changes since langchain==1.2.10
release(langchain_v1): 1.2.11 (#35723)
fix(langchain): normalize custom detector output to prevent KeyError in hash/mask strategies (#35651)
chore: bump the minor-and-patch group across 3 directories with 7 updates (#35605)
chore(langchain): switch refs from gemini-3 to gemini-3.1 (#35535)
chore: bump the langchain-deps group across 3 directories with 7 updates (#35513)
chore: bump langgraph-checkpoint from 3.0.1 to 4.0.0 in /libs/langchain_v1 (#35445)
chore: bump the langchain-deps group across 3 directories with 14 updates (#35441)
chore: bump google-cloud-aiplatform from 1.127.0 to 1.133.0 in /libs/langchain_v1 (#35397)
revert: add ChatAnthropicBedrockWrapper (#35371)
fix(langchain): support anthropic-bedrock in init_chat_model (#35366)
style: fix some ruff noqa (#35321)
fix(langchain): allow Gemini 3 models to use ProviderStrategy with tools (#34464)
docs: fix docstring inaccuracies and update outdated LangSmith URLs (#35283)
feat(openai): support automatic server-side compaction (#35212)
chore: bump the langchain-deps group across 3 directories with 8 updates (#35257)
feat(openrouter): add langchain-openrouter provider package (#35211)
style: bump ruff version to 0.15 (#35042)
chore(deps): bump pillow from 12.0.0 to 12.1.1 in /libs/langchain_v1 (#35174)
chore(core): raise more descriptive model error in init_chat_model (#35167)
chore(deps): bump langsmith from 0.4.42 to 0.6.3 in /libs/langchain_v1 (#35149)
chore(deps): bump cryptography from 46.0.3 to 46.0.5 in /libs/langchain_v1 (#35148)
Changes since langchain-openai==1.1.10
fix(openai): bump min core version (#35705) release(openai): 1.1.11 (#35703) fix(openai): update responses API model detection for pro and codex models (#35594) feat(openai): support tool search (#35582) chore: bump langgraph from 1.0.8 to 1.0.10rc1 in /libs/partners/openai (#35612) chore(model-profiles): refresh model profile data (#35593) fix(openai): avoid PydanticSerializationUnexpectedValue for structured output (#35543) feat(openrouter): add streaming token usage support (#35559) fix: compaction typo (#35467) fix(openai): add test for CSV and accommodate breaking changes in file url inputs (#35454) chore: bump langgraph-checkpoint from 3.0.0 to 4.0.0 in /libs/partners/openai (#35448) fix(model-profiles): sort generated profiles by model ID for stable diffs (#35344) fix(openai): accept valid responses that are falsy at runtime (#35307)