LangChain 1.5.0 Released, Drops Support for Python 3.10

At a glance

LangChain, a tool for building AI apps, has released version 1.5.0. This version no longer supports Python 3.10. Users on Python 3.10 will keep using the older 1.4.x version.

Key points

1. 1

   You need Python 3.11 or later to install it.

2. 2

   The minimum version of langchain-core, the core part of LangChain, is now 1.8.0.

3. 3

   A model router that picks among several AI models based on the situation, plus an auto mode middleware, were added.

4. 4

   The model router middleware is still marked as beta, meaning it is in testing before full release.

Why it matters

Developers who build AI apps with LangChain should check Python version and installation requirements. Keeping an old setup may change what gets installed.