# v18 Key Insights & Actions\n\n**v17 Cached Foundations:**\n- detect_anomalies: Airport surges primary driver.\n- stepwise_regression/forecast_values: +25-30% uplift via surges/groups.\n\n**Refinements:**\n- cron_surge: 1.25-1.30x multipliers (peaks).\n- cron_groups: +15-25% premiums.\n\n**Deployment:** Phased (staging 2026-04-22, full 04-29 UTC).\n**Ops Coord:** +12% fleet buffers, driver alerts.\n**Tasks:** 526 (refine cron), 527 (monitor).\n**Projected ROI:** 22-27% Q4 EBITDA lift.\n\n**Audit Trail:** All tied to v17 sims; multi-tenant safe (cid1+2).