Sourced from langchain-openai's releases.

langchain-openai==1.2.1

Changes since langchain-openai==1.2.0

hotfix: bump min core versions (#36996) release(openai): 1.2.1 (#36995) fix(openai): add gpt-5.5 pro to Responses API check (#36994) feat(core): add content-block-centric streaming (v2) (#36834) chore(model-profiles): refresh model profile data (#36982)

langchain-openai==1.2.0

Changes since langchain-openai==1.1.16

release(openai): 1.2.0 (#36961) feat(openai): prevent silent streaming hangs in ChatOpenAI (#36949) hotfix(ci): remove nobenchmark flag (#36959) chore(partners): standardize integration test invocation (#36958)

langchain-openai==1.1.16

Changes since langchain-openai==1.1.15

release(openai): 1.1.16 (#36927) fix(openai): tolerate prompt_cache_retention drift in streaming (#36925)

langchain-openai==1.1.15

Changes since langchain-openai==1.1.14

release(openai): 1.1.15 (#36901) fix(openai): accommodate dict response items in streaming (#36899) fix(openai): infer azure chat profiles from model name (#36858) chore(model-profiles): refresh model profile data (#36864)

langchain-openai==1.1.14

Changes since langchain-openai==1.1.13

release(openai): 1.1.14 (#36820) fix(openai): use SSRF-safe transport for image token counting (#36819) chore(deps): bump pytest to 9.0.3 (#36801) chore: bump langsmith from 0.6.3 to 0.7.31 in /libs/partners/openai (#36795) chore: bump pillow from 12.1.1 to 12.2.0 in /libs/partners/openai (#36777)

• 87ba30f ci(infra): label release jobs, resolve package name in run title (#36998)
• 56d6e89 hotfix: bump min core versions (#36996)
• a70e7ab release(openai): 1.2.1 (#36995)
• 5a37cd5 fix(openai): add gpt-5.5 pro to Responses API check (#36994)
• c4498cc chore(core): mark stream_v2/astream_v2 as beta (#36992)
• fa0f0d8 release(core): 1.3.2 (#36990)
• 9ce72eb feat(core): add content-block-centric streaming (v2) (#36834)
• 889a45b ci(infra): overlay local langchain-* installs for external partners (#36989)
• ffaac42 ci(infra): add pytest-xdist to partner test groups (#36988)
• cc2feb1 chore(model-profiles): refresh model profile data (#36982)
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