TL;DR: LangChain version 1.3.3 introduces typed subagent run projection and interactive interrupt predicates to improve agent flow control.
Summary: LangChain has released version 1.3.3, introducing key updates to its agent orchestration features. The release adds the ability to project subagent runs onto a typed subagents channel, alongside new interrupt modes and predicates for human-in-the-loop middleware. It also updates and loosens dependencies for LangGraph.
Why it matters: These changes allow for more deterministic orchestration and streamlined human intervention in complex multi-agent systems. Builders should upgrade to utilize the refined state tracking and coordination capabilities.
Source: github.com