langgraph==1.2.20
LangGraph 1.2.20 introduces unique IDs for interrupts within tasks and adds a strict resume mode to reject stale interrupt responses.
Why this signal matters
LangGraph version 1.2.20 brings key updates to workflow interruption handling. Each interrupt() call within a task now receives its own distinct identifier ( 9589). A new strict resume mode has been introduced to prevent execution using stale answers to interrupts ( 9574). Additionally, documentation references for multiple-interrupt errors were updated ( 9590), and development dependencies types-requests and pycryptodome were bumped ( 9535, 9534).
Actionable summary
LangGraph v1.2.20 updates interrupt handling by assigning unique IDs to each interrupt() within a task and introducing a strict resume mode that rejects stale interrupt answers. It also updates documentation links for multiple-interrupt errors and bumps dev dependencies.
- Agent usefulness
- 72/100
- Confidence
- 96%
- Canonical data
- JSON + Markdown
What builders should check
- Upgrade to langgraph==1.2.20 via your package manager.
- Evaluate adopting strict resume mode if your application needs protection against resuming execution with stale interrupt responses.