Hindcast runs use the fleet's rows + states: value-based cache keys, merging fleet fetch, gap-safe cache plan, fleet state carried past the fleet period, speed scheme default

UX-level user isolation: per-browser job ownership + tokens, configuration-tagged caches, calibration no longer locks the gauge, global + per-user CPU admission, tab guard

V24 foundation: two-phase incremental routed nowcast (routednow.compute) + 10-day state retention (prune_states) + temp /api/_rn_test verify endpoint

V13: upstream-gauge boundary conditions (multi-gauge control + EF5 DA), cancel/supersede running sims + Stop button, auto re-run after calibration

statecache: discover warm-start states from disk (union with JSON index)

fix result cache: 1-step slack (EF5 first ts row lands after TIME_BEGIN)

V2: FastAPI+Leaflet map dashboard, Docker SDK (EF5 fork + Arrow), live hydrograph + 2-D streamflow, warmup/state/cache, SNOW17, western CREST