fix: bound langchain-anthropic<1.7.0 in uipath-langchain-client - #132
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langchain-anthropic 1.7.0 changed the private _create/_acreate contract to raw responses, breaking every UiPathChatAnthropic operation. Bound <1.7.0 on the anthropic extra and explicitly on the bedrock extra (previously unbounded there via langchain-aws[anthropic]). Interim pin until the overrides adopt the new contract. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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September 1, 2026 11:11
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Sep 1, 2026
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What changed and why
Interim hotfix (follow-up to the 1.18.1
anthropic<1.0.0bedrock pin, #130 — second incompatibility from the same dependency-drift event):langchain-anthropic>=1.4.1,<1.7.0on theanthropicextra.bedrockextra, which previously admitted it unbounded vialangchain-aws[anthropic].uipath-langchain-clientto 1.18.2, changelog entry, regenerated lockfile (metadata-only diff; locked version stays 1.4.1).langchain-anthropic 1.7.0 (2026-08-27) changed the private
_create/_acreatecontract to raw responses (with_raw_response.create+raw_response.parse()).UiPathChatAnthropicoverrides those methods with the ≤1.6.1-style bodies, so under 1.7.0 every operation fails with'Message'/'Stream'/'AsyncStream' object has no attribute 'parse'. Evidence: the uipath-langchain-python chat-models integration suite fails on exactly theUiPathChatAnthropicsection on all environments (run).This pin is interim — to be reverted when the
_create/_acreateoverrides adopt the raw-response contract and the floor moves to>=1.7.0(tracked separately). No Python code changes.Affected packages
uipath-langchain-clientonly (1.18.1 → 1.18.2). Core untouched.Verification
[anthropic],[bedrock], and[all]against PyPI lands onlangchain-anthropic==1.6.1+anthropic==0.125.0, no conflicts. The other extras pull no anthropic packages.ruff check,ruff format,pyrightpass; full test suite passes (2080 passed), including the Anthropic chat-model tests run explicitly against langchain-anthropic 1.6.1.🤖 Generated with Claude Code