From c77c15e369ddb9d9c63abb0adb9ac7d3f8ab11ef Mon Sep 17 00:00:00 2001
From: Iris <58442094+sleepyStick@users.noreply.github.com>
Date: Mon, 7 Jul 2025 14:00:11 -0700
Subject: [PATCH] PYTHON-5421 continued - update changelog, update docstring,
 and add testing (#2420)

---
 doc/changelog.rst                  | 1 +
 pymongo/asynchronous/uri_parser.py | 3 +++
 pymongo/synchronous/uri_parser.py  | 3 +++
 test/test_uri_parser.py            | 4 ++++
 4 files changed, 11 insertions(+)

diff --git a/doc/changelog.rst b/doc/changelog.rst
index 2fd1bdd6b..933e2922d 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -13,6 +13,7 @@ PyMongo 4.14 brings a number of changes including:
 
 - Introduces a minor breaking change. When encoding :class:`bson.binary.BinaryVector`, a ``ValueError`` will be raised
   if the 'padding' metadata field is < 0 or > 7, or non-zero for any type other than PACKED_BIT.
+- Changed :meth:`~pymongo.uri_parser.parse_uri`'s ``options`` parameter to be type ``dict`` instead of ``_CaseInsensitiveDictionary``.
 
 Changes in Version 4.13.2 (2025/06/17)
 --------------------------------------
diff --git a/pymongo/asynchronous/uri_parser.py b/pymongo/asynchronous/uri_parser.py
index 11a6a6299..055b04d75 100644
--- a/pymongo/asynchronous/uri_parser.py
+++ b/pymongo/asynchronous/uri_parser.py
@@ -80,6 +80,9 @@ async def parse_uri(
           wait for a response from the DNS server.
     :param srv_service_name: A custom SRV service name
 
+    .. versionchanged:: 4.14
+       ``options`` is now type ``dict`` as opposed to a ``_CaseInsensitiveDictionary``.
+
     .. versionchanged:: 4.6
        The delimiting slash (``/``) between hosts and connection options is now optional.
        For example, "mongodb://example.com?tls=true" is now a valid URI.
diff --git a/pymongo/synchronous/uri_parser.py b/pymongo/synchronous/uri_parser.py
index da0f86d72..45c175295 100644
--- a/pymongo/synchronous/uri_parser.py
+++ b/pymongo/synchronous/uri_parser.py
@@ -80,6 +80,9 @@ def parse_uri(
           wait for a response from the DNS server.
     :param srv_service_name: A custom SRV service name
 
+    .. versionchanged:: 4.14
+       ``options`` is now type ``dict`` as opposed to a ``_CaseInsensitiveDictionary``.
+
     .. versionchanged:: 4.6
        The delimiting slash (``/``) between hosts and connection options is now optional.
        For example, "mongodb://example.com?tls=true" is now a valid URI.
diff --git a/test/test_uri_parser.py b/test/test_uri_parser.py
index ed1a53ea2..502faf82b 100644
--- a/test/test_uri_parser.py
+++ b/test/test_uri_parser.py
@@ -555,6 +555,10 @@ class TestURI(unittest.TestCase):
         with self.assertRaisesRegex(ValueError, r"Port contains whitespace character: '\\n'"):
             parse_uri("mongodb://localhost:27\n017")
 
+    def test_parse_uri_options_type(self):
+        opts = parse_uri("mongodb://localhost:27017")["options"]
+        self.assertIsInstance(opts, dict)
+
 
 if __name__ == "__main__":
     unittest.main()