Streamed tool-call arguments are now emitted as tool-call-delta slices instead of block-delta snapshots of the args so far; .tool_calls.get() and .output are unchanged. Iterating ChatModelStream.tool_calls now yields each call's new args slice rather than a snapshot.
LangChain (Python)
npx @buildinternet/releases get langchain-pythonStream consumers in core, langchain, and standard-tests now read tool-call-delta events. LangChainTracer also accepts an address.
Stream consumers in core, langchain, and standard-tests now read tool-call-delta events. Also bumps certifi from 2025.11.12 to 2026.10.19.
Fixed ChatPerplexity dropping Agent API search results, mapping Responses API cache tokens into input_token_details, and emitting search_context_size once per stream in _astream. Also refreshed model profile data and bumped certifi, urllib3, and anyio.
Extras are now propagated on content-block-start streaming events.
LangChainTracer can now be configured with an address.
Human-in-the-loop middleware now supports opt-in per-call interrupts.
Fixed Responses streaming so items remain grouped on a single content block when output_index drifts.
SummarizationMiddleware now accepts a summarizer argument in LangChain 1.4.5.
Model profiles now declare mid-conversation support across core, Anthropic, and OpenAI integrations, and model profile data is refreshed. Plus dependency bumps for langgraph-sdk and urllib3.
Model profiles now declare mid-conversation support across core, Anthropic, and OpenAI integrations.
Model profiles for core, Anthropic, and OpenAI now declare mid-conversation support.
SummarizationMiddleware now retries the summary step when it hits a context overflow. Also bumps the minimum FastMCP version to 4.0.11 and refreshes several dependencies, including fsspec, multidict, langgraph-sdk, pyjwt, and urllib3.
with_retry now accepts a callable, alongside the 1.6.9 release bump.
langchain-openai 1.7.0 adds support for the OpenAI Decisions API. The release also bumps langgraph-sdk, pyjwt, and urllib3 dependencies.
A security fix hardens scoped and compatible IPv6 SSRF checks in langchain-core.
Fixed reasoning being dropped during streaming and tool loops in langchain-fireworks. Also refreshed model profile data and bumped langgraph-sdk.
Device count detection now uses torch.accelerator for device-agnostic behavior, the retired IPEX backend is removed, and huggingfacehub_api_token is hidden from repr. The rest of the release is dependency bumps and model-profile refreshes.
Fixed the v1 output for Bedrock converse to include OpenAI redacted_content, and hardened inspect.signature handling for Python 3.14. Plus dependency bumps to notebook, urllib3, and tornado.
Removed invalid and duplicate separators in the Kotlin, Rust, and Haskell language splitters and incorrect C# and Elixir separator keywords, plus RecursiveJsonSplitter now raises TypeError for non-dict, non-convertible input. Also restored lazy imports for heavy optional dependencies.


