diff --git a/.evergreen/config.yml b/.evergreen/config.yml
index 6aa2020ca..f0b010b84 100644
--- a/.evergreen/config.yml
+++ b/.evergreen/config.yml
@@ -69,10 +69,10 @@ tasks:
 
 buildvariants:
   - name: tests-5-noauth-nossl
-    display_name: Run Tests 5.0 NoAuth NoSSL
+    display_name: Run Tests 6.0 NoAuth NoSSL
     run_on: rhel87-small
     expansions:
-      MONGODB_VERSION: "5.0"
+      MONGODB_VERSION: "6.0"
       TOPOLOGY: server
       AUTH: "noauth"
       SSL: "nossl"
@@ -80,10 +80,10 @@ buildvariants:
       - name: run-tests
 
   - name: tests-5-auth-ssl
-    display_name: Run Tests 5.0 Auth SSL
+    display_name: Run Tests 6.0 Auth SSL
     run_on: rhel87-small
     expansions:
-      MONGODB_VERSION: "5.0"
+      MONGODB_VERSION: "6.0"
       TOPOLOGY: server
       AUTH: "auth"
       SSL: "ssl"
diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 72ca4cd8c..5aadeac0a 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -52,6 +52,6 @@ jobs:
       - name: Start MongoDB
         uses: supercharge/mongodb-github-action@1.12.0
         with:
-          mongodb-version: 5.0
+          mongodb-version: 6.0
       - name: Run tests
         run: python3 django_repo/tests/runtests_.py
diff --git a/django_mongodb_backend/features.py b/django_mongodb_backend/features.py
index 59f867e09..303393b20 100644
--- a/django_mongodb_backend/features.py
+++ b/django_mongodb_backend/features.py
@@ -1,11 +1,9 @@
-import operator
-
 from django.db.backends.base.features import BaseDatabaseFeatures
 from django.utils.functional import cached_property
 
 
 class DatabaseFeatures(BaseDatabaseFeatures):
-    minimum_database_version = (5, 0)
+    minimum_database_version = (6, 0)
     allow_sliced_subqueries_with_in = False
     allows_multiple_constraints_on_same_fields = False
     can_create_inline_fk = False
@@ -24,10 +22,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_expression_indexes = False
     supports_foreign_keys = False
     supports_ignore_conflicts = False
-    # Before MongoDB 6.0, $in cannot be used in partialFilterExpression.
-    supports_in_index_operator = property(operator.attrgetter("is_mongodb_6_0"))
-    # Before MongoDB 6.0, $or cannot be used in partialFilterExpression.
-    supports_or_index_operator = property(operator.attrgetter("is_mongodb_6_0"))
     supports_json_field_contains = False
     # BSON Date type doesn't support microsecond precision.
     supports_microsecond_precision = False
@@ -97,16 +91,11 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         "expressions.tests.ExpressionOperatorTests.test_lefthand_bitwise_xor_right_null",
         "expressions.tests.ExpressionOperatorTests.test_lefthand_transformed_field_bitwise_or",
     }
-    _django_test_expected_failures_partial_expression_in = {
-        "schema.tests.SchemaTests.test_remove_ignored_unique_constraint_not_create_fk_index",
-    }
 
     @cached_property
     def django_test_expected_failures(self):
         expected_failures = super().django_test_expected_failures
         expected_failures.update(self._django_test_expected_failures)
-        if not self.supports_in_index_operator:
-            expected_failures.update(self._django_test_expected_failures_partial_expression_in)
         if not self.is_mongodb_6_3:
             expected_failures.update(self._django_test_expected_failures_bitwise)
         return expected_failures
@@ -601,10 +590,6 @@ def django_test_expected_failures(self):
         },
     }
 
-    @cached_property
-    def is_mongodb_6_0(self):
-        return self.connection.get_database_version() >= (6, 0)
-
     @cached_property
     def is_mongodb_6_3(self):
         return self.connection.get_database_version() >= (6, 3)
diff --git a/django_mongodb_backend/indexes.py b/django_mongodb_backend/indexes.py
index 0fc6646b2..567cd4070 100644
--- a/django_mongodb_backend/indexes.py
+++ b/django_mongodb_backend/indexes.py
@@ -1,6 +1,5 @@
 from django.db import NotSupportedError
 from django.db.models import Index
-from django.db.models.fields.related_lookups import In
 from django.db.models.lookups import BuiltinLookup
 from django.db.models.sql.query import Query
 from django.db.models.sql.where import AND, XOR, WhereNode
@@ -37,20 +36,12 @@ def builtin_lookup_idx(self, compiler, connection):
     return {lhs_mql: {operator: value}}
 
 
-def in_idx(self, compiler, connection):
-    if not connection.features.supports_in_index_operator:
-        raise NotSupportedError("MongoDB < 6.0 does not support the 'in' lookup in indexes.")
-    return builtin_lookup_idx(self, compiler, connection)
-
-
 def where_node_idx(self, compiler, connection):
     if self.connector == AND:
         operator = "$and"
     elif self.connector == XOR:
         raise NotSupportedError("MongoDB does not support the '^' operator lookup in indexes.")
     else:
-        if not connection.features.supports_in_index_operator:
-            raise NotSupportedError("MongoDB < 6.0 does not support the '|' operator in indexes.")
         operator = "$or"
     if self.negated:
         raise NotSupportedError("MongoDB does not support the '~' operator in indexes.")
@@ -69,6 +60,5 @@ def where_node_idx(self, compiler, connection):
 
 def register_indexes():
     BuiltinLookup.as_mql_idx = builtin_lookup_idx
-    In.as_mql_idx = in_idx
     Index._get_condition_mql = _get_condition_mql
     WhereNode.as_mql_idx = where_node_idx
diff --git a/tests/indexes_/test_condition.py b/tests/indexes_/test_condition.py
index f0d67b36b..b5b02e9b3 100644
--- a/tests/indexes_/test_condition.py
+++ b/tests/indexes_/test_condition.py
@@ -2,7 +2,7 @@
 
 from django.db import NotSupportedError, connection
 from django.db.models import Index, Q
-from django.test import TestCase, skipIfDBFeature, skipUnlessDBFeature
+from django.test import TestCase
 
 from .models import Article
 
@@ -46,26 +46,6 @@ def test_xor_not_supported(self):
                 condition=Q(pk=True) ^ Q(pk=False),
             )._get_condition_mql(Article, schema_editor=editor)
 
-    @skipIfDBFeature("supports_or_index_operator")
-    def test_or_not_supported(self):
-        msg = "MongoDB < 6.0 does not support the '|' operator in indexes."
-        with self.assertRaisesMessage(NotSupportedError, msg), connection.schema_editor() as editor:
-            Index(
-                name="test",
-                fields=["headline"],
-                condition=Q(pk=True) | Q(pk=False),
-            )._get_condition_mql(Article, schema_editor=editor)
-
-    @skipIfDBFeature("supports_in_index_operator")
-    def test_in_not_supported(self):
-        msg = "MongoDB < 6.0 does not support the 'in' lookup in indexes."
-        with self.assertRaisesMessage(NotSupportedError, msg), connection.schema_editor() as editor:
-            Index(
-                name="test",
-                fields=["headline"],
-                condition=Q(pk__in=[True]),
-            )._get_condition_mql(Article, schema_editor=editor)
-
     def test_operations(self):
         operators = (
             ("gt", "$gt"),
@@ -86,7 +66,6 @@ def test_operations(self):
                 )
                 self.assertAddRemoveIndex(editor, Article, index)
 
-    @skipUnlessDBFeature("supports_in_index_operator")
     def test_composite_index(self):
         with connection.schema_editor() as editor:
             index = Index(
@@ -110,8 +89,6 @@ def test_composite_op_index(self):
             (operator.or_, "$or"),
             (operator.and_, "$and"),
         )
-        if not connection.features.supports_or_index_operator:
-            operators = operators[1:]
         for op, mongo_operator in operators:
             with self.subTest(operator=op), connection.schema_editor() as editor:
                 index = Index(