LangGraph 1.2.20 released
A patch release adding interrupt tracking and a strict resume mode for better control over task resumption.
What changed in 1.2.20
- Each interrupt() call in a task now gets its own unique id for better tracking and identification.
- New strict resume mode that rejects stale interrupt answers, preventing outdated responses from resuming tasks.
- Improved error message for multiple-interrupts scenario with updated documentation reference.
Summarised by AgentGid from LangChain's official release notes on GitHub, as reported there; read the original before relying on it. Price, status and release dates come from our daily data.
LangGraph at a glance
| What it is | A low-level orchestration framework for building stateful agents as graphs, with durable execution, persistence and human-in-the-loop steps. Available for Python and JavaScript. |
|---|---|
| Latest version | 1.2.22, Nov 14, 2026. This page is about an earlier release. |
| Release pace | 7 stable releases in the last 30 days; 1.2.20 came 6 days after the previous one |
| Price | Free (OSS). LangGraph is open source and free to use; you pay only for the models and infrastructure it runs on. (checked Nov 5, 2026) |
| Downloads, last 7 days | 19M up 1.7% |
| Gid Score | 74 #2 in Agent frameworks and SDKs |
