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- #38437 · mdrxy opened
on Jun 24, 2026 - #35673 · mdrxy opened
on Mar 8, 2026 - #40072 · sydney-runkle opened
on Aug 31, 2026 4
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LLMToolSelectorMiddleware ignores conversation history on follow-up queries
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.langchain-typesafe: TypeSafeClassifier sends requests when questions is empty
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureStatus: Open.#40706 In langchain-ai/langchain;PIIMiddleware inspects only the newest message of each kind, so PII in supplied history reaches the model and block does not raise
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.#40704 In langchain-ai/langchain;langchain-typesafe: ModelRouterMiddleware overrides ModelFallbackMiddleware fallback models
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.#40700 In langchain-ai/langchain;langchain-typesafe: AutoModeMiddleware classifies a tool call that inner middleware can replace before execution
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.#40694 In langchain-ai/langchain;ToolRetryMiddleware: default settings retry non-idempotent tools on ambiguous transport errors, then ask the model to retry againbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRsStatus: Open.#40688 In langchain-ai/langchain;core: Responses file-URL test overwrites its expected result without asserting it
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#40678 In langchain-ai/langchain;core: Message chunk addition drops 'name' and fallback 'id', breaking streaming multi-agent metadata and merge_message_runs
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#40677 In langchain-ai/langchain;anthropic:
FilesystemClaudeTextEditorMiddlewarereads and writes files with the locale encoding so non ascii content breaks on non utf8 systemsanthropic`langchain-anthropic` package issues & PRs`langchain-anthropic` package issues & PRsbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureStatus: Open.#40675 In langchain-ai/langchain;Cache writes are counted twice for priority and flex
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featureopenai`langchain-openai` package issues & PRs`langchain-openai` package issues & PRsStatus: Open.#40668 In langchain-ai/langchain;pyproject.toml is read with the locale encoding in unit tests — full inventory (4 call sites, one missed by #40588, one latent)
bugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurelangchain`langchain` package issues & PRs`langchain` package issues & PRslangchain-classic`langchain-classic` package issues & PRs`langchain-classic` package issues & PRsStatus: Open.#40664 In langchain-ai/langchain;PromptTemplate silently accepts empty f-string field
{}then crashes with IndexError on formatbugRelated to a bug, vulnerability, unexpected error with an existing featureRelated to a bug, vulnerability, unexpected error with an existing featurecore`langchain-core` package issues & PRs`langchain-core` package issues & PRsStatus: Open.#40657 In langchain-ai/langchain;