LangGraph 发布 1.2.15 版本，修复多项 DeltaChannel 与检查点问题

AI 摘要

LangGraph 发布 1.2.15 版本，主要包含一系列针对 DeltaChannel、检查点（checkpoint）、中断（interrupt）和状态更新（update_state）的 bug 修复。修复内容涉及消息 ID 分配、缓存节点写入保存、中断断点处理、退出模式运行重放顺序等。该版本还升级了 notebook 依赖。

正文节选

Changes since 1.2.14 * release(langgraph): 1.2.15 (#9283) * fix(langgraph): give every message written to a messages DeltaChannel an id (#9275) * fix(langgraph): save a cached node's writes like a node that ran (#9259) * fix(langgraph): stop at an interrupt_before breakpoint when a drain is requested before it (#9281) * fix(langgraph): keep an exit run from a checkpoint the thread moved past out of its newer branch (#9269) * fix(langgraph): store an update_state input's writes on the checkpoint

发布时间：2026-10-13 06:38

抓取时间：2026-10-13 06:47

来源机构：LangChain