Changelog

0.1.0a1 - 2026-10-05

First alpha. Python 3.12 to 3.14.

Added

• Graphs of sync or async nodes over a typed state, with conditional routes, fan-out with Send and a Mermaid drawing of the flow.
• Runs with invoke and stream, ready nodes in parallel, timeouts and a step limit.
• Threads, history and time travel, in memory or in files, and interrupts that pause a run for a person.
• Chat agents with tools, structured output and sub-agents. OpenAIChat in the openai extra, ScriptedChat for tests.
• Middleware for tool approvals, tool-call limits, summarization, to-do lists, skills and memory.
• Workspaces for file tools, on disk or in memory.
• nodestep sandbox in the sandbox extra: a local web page that runs a graph step by step.