diff --git a/tests/integration/fixtures/external_components/legacy_climate_component/__init__.py b/tests/integration/fixtures/external_components/legacy_climate_component/__init__.py
index a495fb81ad3..ba9eff2d892 100644
--- a/tests/integration/fixtures/external_components/legacy_climate_component/__init__.py
+++ b/tests/integration/fixtures/external_components/legacy_climate_component/__init__.py
@@ -1 +1,4 @@
-"""Legacy climate component — tests deprecated ClimateTraits setters backward compat."""
+"""Legacy climate component — tests deprecated ClimateTraits setters backward compat.
+
+Remove this entire directory in 2026.11.0 when the deprecated setters are removed.
+"""
diff --git a/tests/integration/test_legacy_climate_compat.py b/tests/integration/test_legacy_climate_compat.py
index 1ea3c2bc4a5..aad71dd04ae 100644
--- a/tests/integration/test_legacy_climate_compat.py
+++ b/tests/integration/test_legacy_climate_compat.py
@@ -2,7 +2,10 @@
 
 Verifies that external components using the old traits.set_supported_custom_fan_modes()
 and traits.set_supported_custom_presets() API still work correctly during the
-deprecation period (removed in 2026.11.0).
+deprecation period.
+
+Remove this entire test file and the legacy_climate_component external component
+in 2026.11.0 when the deprecated ClimateTraits setters are removed.
 """
 
 from __future__ import annotations