diff --git a/hypothesis-python/RELEASE.rst b/hypothesis-python/RELEASE.rst
new file mode 100644
index 0000000000..03575b3ee5
--- /dev/null
+++ b/hypothesis-python/RELEASE.rst
@@ -0,0 +1,3 @@
+RELEASE_TYPE: patch
+
+Clean up an internal helper.
diff --git a/hypothesis-python/src/hypothesis/_settings.py b/hypothesis-python/src/hypothesis/_settings.py
index 13c90373ed..6d100b7296 100644
--- a/hypothesis-python/src/hypothesis/_settings.py
+++ b/hypothesis-python/src/hypothesis/_settings.py
@@ -18,7 +18,6 @@
 import datetime
 import inspect
 import os
-import warnings
 from collections.abc import Collection, Generator, Sequence
 from enum import Enum, EnumMeta, unique
 from functools import total_ordering
@@ -31,13 +30,13 @@
 )
 
 from hypothesis.errors import (
-    HypothesisDeprecationWarning,
     InvalidArgument,
 )
 from hypothesis.internal.conjecture.providers import AVAILABLE_PROVIDERS
 from hypothesis.internal.reflection import get_pretty_function_description
 from hypothesis.internal.validation import check_type, try_convert
 from hypothesis.utils.conventions import not_set
+from hypothesis.utils.deprecation import note_deprecation
 from hypothesis.utils.dynamicvariables import DynamicVariable
 
 if TYPE_CHECKING:
@@ -1191,20 +1190,6 @@ def local_settings(s: settings) -> Generator[settings, None, None]:
         yield s
 
 
-def note_deprecation(
-    message: str, *, since: str, has_codemod: bool, stacklevel: int = 0
-) -> None:
-    if since != "RELEASEDAY":
-        date = datetime.date.fromisoformat(since)
-        assert datetime.date(2021, 1, 1) <= date
-    if has_codemod:
-        message += (
-            "\n    The `hypothesis codemod` command-line tool can automatically "
-            "refactor your code to fix this warning."
-        )
-    warnings.warn(HypothesisDeprecationWarning(message), stacklevel=2 + stacklevel)
-
-
 default = settings(
     max_examples=100,
     derandomize=False,
diff --git a/hypothesis-python/src/hypothesis/control.py b/hypothesis-python/src/hypothesis/control.py
index 11f8223231..628ee5c6af 100644
--- a/hypothesis-python/src/hypothesis/control.py
+++ b/hypothesis-python/src/hypothesis/control.py
@@ -18,7 +18,6 @@
 from weakref import WeakKeyDictionary
 
 from hypothesis import Verbosity, settings
-from hypothesis._settings import note_deprecation
 from hypothesis.errors import InvalidArgument, UnsatisfiedAssumption
 from hypothesis.internal.compat import BaseExceptionGroup
 from hypothesis.internal.conjecture.data import ConjectureData
@@ -26,6 +25,7 @@
 from hypothesis.internal.reflection import get_pretty_function_description
 from hypothesis.internal.validation import check_type
 from hypothesis.reporting import report, verbose_report
+from hypothesis.utils.deprecation import note_deprecation
 from hypothesis.utils.dynamicvariables import DynamicVariable
 from hypothesis.vendor.pretty import IDKey, PrettyPrintFunction, pretty
 
diff --git a/hypothesis-python/src/hypothesis/database.py b/hypothesis-python/src/hypothesis/database.py
index 9106a2d219..68568675f3 100644
--- a/hypothesis-python/src/hypothesis/database.py
+++ b/hypothesis-python/src/hypothesis/database.py
@@ -37,11 +37,11 @@
 from urllib.request import Request, urlopen
 from zipfile import BadZipFile, ZipFile
 
-from hypothesis._settings import note_deprecation
 from hypothesis.configuration import storage_directory
 from hypothesis.errors import HypothesisException, HypothesisWarning
 from hypothesis.internal.conjecture.choice import ChoiceT
 from hypothesis.utils.conventions import UniqueIdentifier, not_set
+from hypothesis.utils.deprecation import note_deprecation
 
 __all__ = [
     "DirectoryBasedExampleDatabase",
diff --git a/hypothesis-python/src/hypothesis/errors.py b/hypothesis-python/src/hypothesis/errors.py
index 0e8fa889df..daf81828c9 100644
--- a/hypothesis-python/src/hypothesis/errors.py
+++ b/hypothesis-python/src/hypothesis/errors.py
@@ -222,8 +222,8 @@ class Frozen(HypothesisException):
 
 def __getattr__(name: str) -> Any:
     if name == "MultipleFailures":
-        from hypothesis._settings import note_deprecation
         from hypothesis.internal.compat import BaseExceptionGroup
+        from hypothesis.utils.deprecation import note_deprecation
 
         note_deprecation(
             "MultipleFailures is deprecated; use the builtin `BaseExceptionGroup` type "
diff --git a/hypothesis-python/src/hypothesis/extra/numpy.py b/hypothesis-python/src/hypothesis/extra/numpy.py
index e78b0dd15d..0cf3efaea3 100644
--- a/hypothesis-python/src/hypothesis/extra/numpy.py
+++ b/hypothesis-python/src/hypothesis/extra/numpy.py
@@ -27,7 +27,6 @@
 import numpy as np
 
 from hypothesis import strategies as st
-from hypothesis._settings import note_deprecation
 from hypothesis.errors import HypothesisException, InvalidArgument
 from hypothesis.extra._array_helpers import (
     _BIE,
@@ -60,6 +59,7 @@
     check_strategy,
 )
 from hypothesis.strategies._internal.utils import defines_strategy
+from hypothesis.utils.deprecation import note_deprecation
 
 
 def _try_import(mod_name: str, attr_name: str) -> Any:
diff --git a/hypothesis-python/src/hypothesis/extra/pandas/impl.py b/hypothesis-python/src/hypothesis/extra/pandas/impl.py
index 4d4c00f127..12da7370a6 100644
--- a/hypothesis-python/src/hypothesis/extra/pandas/impl.py
+++ b/hypothesis-python/src/hypothesis/extra/pandas/impl.py
@@ -19,7 +19,6 @@
 import pandas
 
 from hypothesis import strategies as st
-from hypothesis._settings import note_deprecation
 from hypothesis.control import reject
 from hypothesis.errors import InvalidArgument
 from hypothesis.extra import numpy as npst
@@ -33,6 +32,7 @@
 )
 from hypothesis.strategies._internal.strategies import Ex, check_strategy
 from hypothesis.strategies._internal.utils import cacheable, defines_strategy
+from hypothesis.utils.deprecation import note_deprecation
 
 try:
     from pandas.core.arrays.integer import IntegerDtype
diff --git a/hypothesis-python/src/hypothesis/internal/conjecture/data.py b/hypothesis-python/src/hypothesis/internal/conjecture/data.py
index 4ac53e9dd9..9ac26e1cba 100644
--- a/hypothesis-python/src/hypothesis/internal/conjecture/data.py
+++ b/hypothesis-python/src/hypothesis/internal/conjecture/data.py
@@ -70,6 +70,7 @@
 from hypothesis.internal.observability import PredicateCounts
 from hypothesis.reporting import debug_report
 from hypothesis.utils.conventions import not_set
+from hypothesis.utils.deprecation import note_deprecation
 from hypothesis.utils.threading import ThreadLocal
 
 if TYPE_CHECKING:
@@ -81,7 +82,6 @@
 
 def __getattr__(name: str) -> Any:
     if name == "AVAILABLE_PROVIDERS":
-        from hypothesis._settings import note_deprecation
         from hypothesis.internal.conjecture.providers import AVAILABLE_PROVIDERS
 
         note_deprecation(
diff --git a/hypothesis-python/src/hypothesis/internal/conjecture/engine.py b/hypothesis-python/src/hypothesis/internal/conjecture/engine.py
index 85b34f474f..3a1c1944b4 100644
--- a/hypothesis-python/src/hypothesis/internal/conjecture/engine.py
+++ b/hypothesis-python/src/hypothesis/internal/conjecture/engine.py
@@ -23,7 +23,7 @@
 from typing import Literal, NoReturn, cast
 
 from hypothesis import HealthCheck, Phase, Verbosity, settings as Settings
-from hypothesis._settings import local_settings, note_deprecation
+from hypothesis._settings import local_settings
 from hypothesis.database import ExampleDatabase, choices_from_bytes, choices_to_bytes
 from hypothesis.errors import (
     BackendCannotProceed,
@@ -70,6 +70,7 @@
 from hypothesis.internal.healthcheck import fail_health_check
 from hypothesis.internal.observability import Observation, with_observability_callback
 from hypothesis.reporting import base_report, report, verbose_report
+from hypothesis.utils.deprecation import note_deprecation
 
 # In most cases, the following constants are all Final. However, we do allow users
 # to monkeypatch all of these variables, which means we cannot annotate them as
diff --git a/hypothesis-python/src/hypothesis/internal/observability.py b/hypothesis-python/src/hypothesis/internal/observability.py
index 84d5b51bf4..ad674f2265 100644
--- a/hypothesis-python/src/hypothesis/internal/observability.py
+++ b/hypothesis-python/src/hypothesis/internal/observability.py
@@ -51,6 +51,7 @@
 from hypothesis.internal.escalation import InterestingOrigin
 from hypothesis.internal.floats import float_to_int
 from hypothesis.internal.intervalsets import IntervalSet
+from hypothesis.utils.deprecation import note_deprecation
 
 if TYPE_CHECKING:
     from hypothesis.internal.conjecture.data import ConjectureData, Spans, Status
@@ -355,8 +356,6 @@ def __bool__(self):
         return bool(_callbacks)
 
     def _note_deprecation(self):
-        from hypothesis._settings import note_deprecation
-
         note_deprecation(
             "hypothesis.internal.observability.TESTCASE_CALLBACKS is deprecated. "
             "Replace TESTCASE_CALLBACKS.append with add_observability_callback, "
diff --git a/hypothesis-python/src/hypothesis/stateful.py b/hypothesis-python/src/hypothesis/stateful.py
index 8026d2d167..2103fdcb2c 100644
--- a/hypothesis-python/src/hypothesis/stateful.py
+++ b/hypothesis-python/src/hypothesis/stateful.py
@@ -28,12 +28,7 @@
 from unittest import TestCase
 
 from hypothesis import strategies as st
-from hypothesis._settings import (
-    HealthCheck,
-    Verbosity,
-    note_deprecation,
-    settings as Settings,
-)
+from hypothesis._settings import HealthCheck, Verbosity, settings as Settings
 from hypothesis.control import _current_build_context, current_build_context
 from hypothesis.core import TestFunc, given
 from hypothesis.errors import (
@@ -62,6 +57,7 @@
     SearchStrategy,
     check_strategy,
 )
+from hypothesis.utils.deprecation import note_deprecation
 from hypothesis.vendor.pretty import RepresentationPrinter
 
 T = TypeVar("T")
diff --git a/hypothesis-python/src/hypothesis/strategies/_internal/core.py b/hypothesis-python/src/hypothesis/strategies/_internal/core.py
index 5aaf0fe497..4a8224cc9c 100644
--- a/hypothesis-python/src/hypothesis/strategies/_internal/core.py
+++ b/hypothesis-python/src/hypothesis/strategies/_internal/core.py
@@ -45,7 +45,6 @@
 )
 from uuid import UUID
 
-from hypothesis._settings import note_deprecation
 from hypothesis.control import (
     cleanup,
     current_build_context,
@@ -138,6 +137,7 @@
 )
 from hypothesis.strategies._internal.utils import cacheable, defines_strategy
 from hypothesis.utils.conventions import not_set
+from hypothesis.utils.deprecation import note_deprecation
 from hypothesis.vendor.pretty import RepresentationPrinter
 
 
diff --git a/hypothesis-python/src/hypothesis/utils/deprecation.py b/hypothesis-python/src/hypothesis/utils/deprecation.py
new file mode 100644
index 0000000000..e27e2cf9c1
--- /dev/null
+++ b/hypothesis-python/src/hypothesis/utils/deprecation.py
@@ -0,0 +1,28 @@
+# This file is part of Hypothesis, which may be found at
+# https://github.com/HypothesisWorks/hypothesis/
+#
+# Copyright the Hypothesis Authors.
+# Individual contributors are listed in AUTHORS.rst and the git log.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public License,
+# v. 2.0. If a copy of the MPL was not distributed with this file, You can
+# obtain one at https://mozilla.org/MPL/2.0/.
+
+import datetime
+import warnings
+
+from hypothesis.errors import HypothesisDeprecationWarning
+
+
+def note_deprecation(
+    message: str, *, since: str, has_codemod: bool, stacklevel: int = 0
+) -> None:
+    if since != "RELEASEDAY":
+        date = datetime.date.fromisoformat(since)
+        assert datetime.date(2021, 1, 1) <= date
+    if has_codemod:
+        message += (
+            "\n    The `hypothesis codemod` command-line tool can automatically "
+            "refactor your code to fix this warning."
+        )
+    warnings.warn(HypothesisDeprecationWarning(message), stacklevel=2 + stacklevel)
diff --git a/hypothesis-python/tests/cover/test_settings.py b/hypothesis-python/tests/cover/test_settings.py
index 5cac554320..754d04dd63 100644
--- a/hypothesis-python/tests/cover/test_settings.py
+++ b/hypothesis-python/tests/cover/test_settings.py
@@ -26,7 +26,6 @@
     Verbosity,
     default_variable,
     local_settings,
-    note_deprecation,
     settings,
 )
 from hypothesis.database import InMemoryExampleDatabase
@@ -36,6 +35,7 @@
 )
 from hypothesis.stateful import RuleBasedStateMachine, rule
 from hypothesis.utils.conventions import not_set
+from hypothesis.utils.deprecation import note_deprecation
 
 from tests.common.utils import (
     checks_deprecated_behaviour,
@@ -381,22 +381,6 @@ def test_deadline_given_valid_timedelta():
     assert x.microseconds == 30000
 
 
-@pytest.mark.parametrize(
-    "x",
-    [
-        0,
-        -0.7,
-        -1,
-        86400000000000000.2,
-        datetime.timedelta(microseconds=-1),
-        datetime.timedelta(0),
-    ],
-)
-def test_invalid_deadline(x):
-    with pytest.raises(InvalidArgument):
-        settings(deadline=x)
-
-
 @pytest.mark.parametrize("value", ["always"])
 def test_can_not_set_print_blob_to_non_print_settings(value):
     with pytest.raises(InvalidArgument):
@@ -467,6 +451,10 @@ def test_derandomise_with_explicit_database_is_invalid():
         {"stateful_step_count": 2.5},
         {"deadline": -1},
         {"deadline": 0},
+        {"deadline": -0.7},
+        {"deadline": 86400000000000000.2},
+        {"deadline": datetime.timedelta(microseconds=-1)},
+        {"deadline": datetime.timedelta(0)},
         {"deadline": True},
         {"deadline": False},
         {"backend": "nonexistent_backend"},
@@ -489,11 +477,9 @@ def __repr__(self):
 
     not_settings = NotSettings()
 
-    with pytest.raises(InvalidArgument) as excinfo:
+    with pytest.raises(InvalidArgument, match=r"parent=\(not settings repr\)"):
         settings(not_settings)
 
-    assert "parent=(not settings repr)" in str(excinfo.value)
-
 
 def test_default_settings_do_not_use_ci():
     assert settings.get_profile("default").suppress_health_check == ()