LangGraph 1.2.22 released
A patch release that fixes child graph streaming and improves performance across message handling and state updates.
What changed in 1.2.22
- Child graphs now stream on their own thread when called from a parent graph with streaming enabled.
- Message conversion optimized in add_messages for plain messages.
- State updates and channel tracking made faster through filtering, set matching, and single-pass lookups.
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 is the latest stable release we track. |
| Release pace | 7 stable releases in the last 30 days; 1.2.22 came 2 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 |
