LangChain: Gateway Routing Expands, Python 3.10 Dropped
LangChain core added per-request LangSmith gateway routing, adopted by Groq, XAI, DeepSeek and Mistral in coordinated releases, while Python 3.10 support was removed across the repo and OpenAI added a Decisions API classifier.
Duration: PT2M24S
Episode overview
This episode is a short developer briefing from LangChain.
It explains recent repository work in plain language.
- Show: LangChain
- Published: 2026-11-14T14:02:06Z
- Audio duration: PT2M24S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Saturday, November 14th, 2026, and this is your LangChain briefing.
The headline is centralized model routing: LangChain core now supports a per-request override for the LangSmith gateway, and four provider packages have switched on to use it.
First, gateway expansion. Core change in P R 41836 adds a context manager for the gateway key that applies only to the current thread or async task, unlike the global environment setting. Models built inside it route through the gateway, with the gateway address resolved when the model is constructed, not when it's…
Second, end of Python 3.10 and a release train. P R's 41344, 41268, and 41343 remove end-of-life Python 3.10 from LangChain Classic, partner packages, and utilities including text splitters and test tooling. Those changes shipped immediately: core 1.8.1 in P R 41855, plus DeepSeek 1.2.0, Groq 1.2.0, X A I 1.4.0, and…
Finally, OpenAI and reliability. P R 41787 adds an OpenAI classifier for the generally available Decisions A P I, released as OpenAI 1.8.0 in P R 41841. Separately, open P R 41844 would fix the length-based example selector so a failed add with a missing template variable doesn't corrupt internal…
What'…
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