releases.shpreview
LangChain/LangChain.js/langchain@1.2.33

langchain@1.2.33

$npx -y @buildinternet/releases show rel_T6XNOT5nvzBvjswm2LdXF

Patch Changes

  • #9862 5b250b1 Thanks @stellarrover! - fix(langchain/agents): Fix ReactAgent routing with returnDirect + beforeModel middleware

    This fixes a routing error when an agent has both tools with returnDirect: true and middleware with beforeModel hooks (e.g., summarizationMiddleware). Before this fix, non-returnDirect tools would fail with "Branch condition returned unknown or null destination".

  • Updated dependencies [6db417b, d69dfcc]:

    • @langchain/core@1.1.33

Fetched April 7, 2026