LangGraph SDK 0.4.9 lets you set per-thread run priority and fairness groups (beta)
Released Oct 23, a new Priority class lets you register an assign function in langgraph.json that gives each thread a priority and a fairness group (say, premium users first, grouped by org); the server calls it on a thread's first run and keeps the result for later runs. It's a beta API and needs LangGraph CLI 0.4.38+ (reference).