diff --git a/stripe/_api_requestor.py b/stripe/_api_requestor.py
index 7cf5bc38e..97cee5c2e 100644
--- a/stripe/_api_requestor.py
+++ b/stripe/_api_requestor.py
@@ -43,7 +43,6 @@
 
 from stripe._base_address import BaseAddress
 from stripe._api_mode import ApiMode
-from stripe import _util
 
 if TYPE_CHECKING:
     from stripe._stripe_object import StripeObject
@@ -143,13 +142,6 @@ def _global_with_options(
     ) -> "APIRequestor":
         return APIRequestor._global_instance()._replace_options(params)
 
-    @classmethod
-    @_util.deprecated(
-        "This method is internal to stripe-python and the public interface will be removed in a future stripe-python version"
-    )
-    def format_app_info(cls, info):
-        return cls._format_app_info(info)
-
     @classmethod
     def _format_app_info(cls, info):
         str = info["name"]
diff --git a/stripe/_error.py b/stripe/_error.py
index 39bbc6503..c86ce0e1c 100644
--- a/stripe/_error.py
+++ b/stripe/_error.py
@@ -4,9 +4,6 @@
 import stripe  # noqa: IMP101
 from stripe._error_object import ErrorObject
 
-from stripe import _util
-import warnings
-
 
 class StripeError(Exception):
     _message: Optional[str]
@@ -71,10 +68,7 @@ def __repr__(self):
             self.request_id,
         )
 
-    @_util.deprecated(
-        "For internal stripe-python use only. The public interface will be removed in a future version."
-    )
-    def construct_error_object(self) -> Optional[ErrorObject]:
+    def _construct_error_object(self) -> Optional[ErrorObject]:
         if (
             self.json_body is None
             or not isinstance(self.json_body, dict)
@@ -89,11 +83,6 @@ def construct_error_object(self) -> Optional[ErrorObject]:
             api_mode="V1",
         )
 
-    def _construct_error_object(self):
-        with warnings.catch_warnings():
-            warnings.simplefilter("ignore", DeprecationWarning)
-            return self.construct_error_object()
-
 
 class APIError(StripeError):
     pass
diff --git a/stripe/_list_object.py b/stripe/_list_object.py
index 554fad608..bfd1a5a37 100644
--- a/stripe/_list_object.py
+++ b/stripe/_list_object.py
@@ -142,16 +142,6 @@ def auto_paging_iter(self) -> Iterator[T]:
             if page.is_empty:
                 break
 
-    @classmethod
-    @_util.deprecated(
-        "This method is for internal stripe-python use only. The public interface will be removed in a future version."
-    )
-    def empty_list(
-        cls,
-        **params: Unpack[RequestOptions],
-    ) -> Self:
-        return cls._empty_list(**params)
-
     @classmethod
     def _empty_list(
         cls,
diff --git a/stripe/_search_result_object.py b/stripe/_search_result_object.py
index 6f71492ca..862ebda4f 100644
--- a/stripe/_search_result_object.py
+++ b/stripe/_search_result_object.py
@@ -97,18 +97,6 @@ def _empty_search_result(
             api_mode="V1",
         )
 
-    @classmethod
-    @_util.deprecated(
-        "For internal stripe-python use only. This will be removed in a future version."
-    )
-    def empty_search_result(
-        cls,
-        **params: Unpack[RequestOptions],
-    ) -> Self:
-        return cls._empty_search_result(
-            **params,
-        )
-
     @property
     def is_empty(self) -> bool:
         return not self.data
diff --git a/stripe/_stripe_object.py b/stripe/_stripe_object.py
index f67d7887a..fe909f505 100644
--- a/stripe/_stripe_object.py
+++ b/stripe/_stripe_object.py
@@ -84,12 +84,6 @@ def default(self, o: Any) -> Any:
                 return _encode_datetime(o)
             return super(StripeObject._ReprJSONEncoder, self).default(o)
 
-    @_util.deprecated(
-        "For internal stripe-python use only. The public interface will be removed in a future version"
-    )
-    class ReprJSONEncoder(_ReprJSONEncoder):
-        pass
-
     _retrieve_params: Mapping[str, Any]
     _previous: Optional[Mapping[str, Any]]
 
@@ -376,13 +370,6 @@ def _refresh_from(
 
         self._previous = values
 
-    @classmethod
-    @_util.deprecated(
-        "This will be removed in a future version of stripe-python."
-    )
-    def api_base(cls) -> Optional[str]:
-        return None
-
     @_util.deprecated(
         "This will be removed in a future version of stripe-python."
     )
diff --git a/stripe/oauth_error.py b/stripe/oauth_error.py
index a97019a25..d646eb538 100644
--- a/stripe/oauth_error.py
+++ b/stripe/oauth_error.py
@@ -17,7 +17,7 @@ def __init__(
             description, http_body, http_status, json_body, headers, code
         )
 
-    def construct_error_object(self):
+    def _construct_error_object(self):
         if self.json_body is None:
             return None
 
diff --git a/tests/api_resources/test_list_object.py b/tests/api_resources/test_list_object.py
index 48d7c4df3..72aa8dc11 100644
--- a/tests/api_resources/test_list_object.py
+++ b/tests/api_resources/test_list_object.py
@@ -90,7 +90,7 @@ def test_is_empty(self):
         assert lo.is_empty is True
 
     def test_empty_list(self):
-        lo = stripe.ListObject.empty_list()
+        lo = stripe.ListObject._empty_list()
         assert lo.is_empty
 
     def test_iter(self):
@@ -176,7 +176,7 @@ def test_next_page_empty_list(self):
         )
 
         next_lo = lo.next_page()
-        assert next_lo == stripe.ListObject.empty_list()
+        assert next_lo == stripe.ListObject._empty_list()
 
     def test_prev_page(self, http_client_mock):
         lo = stripe.ListObject.construct_from(
diff --git a/tests/api_resources/test_search_result_object.py b/tests/api_resources/test_search_result_object.py
index c61c3305e..c77abf467 100644
--- a/tests/api_resources/test_search_result_object.py
+++ b/tests/api_resources/test_search_result_object.py
@@ -47,7 +47,7 @@ def test_is_empty(self):
         assert sro.is_empty is True
 
     def test_empty_search_result(self):
-        sro = stripe.SearchResultObject.empty_search_result()
+        sro = stripe.SearchResultObject._empty_search_result()
         assert sro.is_empty
 
     def test_iter(self):
@@ -149,7 +149,7 @@ def test_next_search_result_page_empty_search_result(self):
         )
 
         next_sro = sro.next_search_result_page()
-        assert next_sro == stripe.SearchResultObject.empty_search_result()
+        assert next_sro == stripe.SearchResultObject._empty_search_result()
 
     def test_serialize_empty_search_result(self):
         empty = stripe.SearchResultObject.construct_from(