From c9e727b2bcd18db95527e3c97538501bde08cf56 Mon Sep 17 00:00:00 2001
From: Akarsh Singhal <83413214+akarshsinghal@users.noreply.github.com>
Date: Fri, 28 Nov 2025 23:20:50 -0500
Subject: [PATCH] Deprecate Flask.should_ignore_error: emits DeprecationWarning
 and returns False for backward compatibility

---
 src/flask/app.py | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/flask/app.py b/src/flask/app.py
index e0c193dc..c14360e3 100644
--- a/src/flask/app.py
+++ b/src/flask/app.py
@@ -12,6 +12,7 @@ from inspect import iscoroutinefunction
 from itertools import chain
 from types import TracebackType
 from urllib.parse import quote as _url_quote
+import warnings
 
 import click
 from werkzeug.datastructures import Headers
@@ -1589,3 +1590,19 @@ class Flask(App):
         wrapped to apply middleware.
         """
         return self.wsgi_app(environ, start_response)
+
+    def should_ignore_error(self, error):
+        """
+        Deprecated: this method is no longer meaningful in Flask's current
+        context preservation design. It will be removed in a future release.
+
+        Kept for backwards compatibility — it always returns False.
+        """
+        import warnings
+        warnings.warn(
+            "Flask.should_ignore_error is deprecated and will be removed in a "
+            "future release. It currently always returns False and should not be used.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return False