diff --git a/scripts/check_min_core_version.py b/scripts/check_min_core_version.py
index b8365735..c06de7de 100644
--- a/scripts/check_min_core_version.py
+++ b/scripts/check_min_core_version.py
@@ -168,6 +168,7 @@
     # release is tagged, set each None entry here to that tag -- the test's
     # tag-verification section insists on it once the tag is in its list.
     "src.common.fetch_service": None,  # core #702 (shared fetch service)
+    "src.display_arbiter": None,  # core #733 (run() stage 2 arbiter)
 }
 
 #: Releases whose ``src/__init__.py`` ``__version__`` lags their tag. The
diff --git a/scripts/test_stage3_mixin_copies.py b/scripts/test_stage3_mixin_copies.py
index d900bc54..e0e35f96 100644
--- a/scripts/test_stage3_mixin_copies.py
+++ b/scripts/test_stage3_mixin_copies.py
@@ -56,7 +56,9 @@
         "SportsFetchMixin", "sports.py", "SportsCore", ALL, (),
         ("_fetch_season_directly", "_background_fetches_espn_ranges",
          "_needs_previous_day", "_wants_live_odds",
-         "_LOOKBACK_CUTOFF_HOUR", "_LIVE_ODDS_LOOKAHEAD")),
+         "_LOOKBACK_CUTOFF_HOUR", "_LIVE_ODDS_LOOKAHEAD",
+         # core #728 (fetch service stage 2): the shared ESPN schedule window
+         "_schedule_cache_key", "_cached_schedule", "_retire_previous_window")),
     "src.common.sports_celebration": (
         "SportsCelebrationMixin", "sports.py", "SportsLive",
         ("afl", "football", "hockey", "nrl", "soccer"),