langchain-core==1.2.22

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)

langchain-openai==1.1.12

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)

langchain-core==1.2.21

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)

langchain==1.2.13

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)

langchain-core==1.2.20

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)

langchain-anthropic==1.4.0

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)

langchain-anthropic==1.3.5

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)

langchain-mistralai==1.1.2

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)

langchain-core==1.2.19

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)

langchain-classic==1.0.3

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)