Fixed #36105 -- Dropped support for MariaDB 10.5.

django/db/backends/mysql/features.py

@@ -11,6 +11,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     allow_sliced_subqueries_with_in = False
     has_select_for_update = True
     has_select_for_update_nowait = True
+    has_select_for_update_skip_locked = True
     supports_forward_references = False
     supports_regex_backreferencing = False
     supports_date_lookup_using_string = False
@@ -26,6 +27,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_over_clause = True
     supports_frame_range_fixed_distance = True
     supports_update_conflicts = True
+    can_rename_index = True
     delete_can_self_reference_subquery = False
     create_test_procedure_without_params_sql = """
         CREATE PROCEDURE test_procedure ()
@@ -65,7 +67,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     @cached_property
     def minimum_database_version(self):
         if self.connection.mysql_is_mariadb:
-            return (10, 5)
+            return (10, 6)
         else:
             return (8, 0, 11)
 
@@ -105,17 +107,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
                 "update.tests.AdvancedTests.test_update_ordered_by_m2m_annotation_desc",
             },
         }
-        if self.connection.mysql_is_mariadb and (
-            self.connection.mysql_version < (10, 5, 2)
-        ):
-            skips.update(
-                {
-                    "https://jira.mariadb.org/browse/MDEV-19598": {
-                        "schema.tests.SchemaTests."
-                        "test_alter_not_unique_field_to_primary_key",
-                    },
-                }
-            )
         if not self.supports_explain_analyze:
             skips.update(
                 {
@@ -222,12 +213,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
             return True
         return self.connection.mysql_version >= (8, 0, 16)
 
-    @cached_property
-    def has_select_for_update_skip_locked(self):
-        if self.connection.mysql_is_mariadb:
-            return self.connection.mysql_version >= (10, 6)
-        return True
-
     @cached_property
     def has_select_for_update_of(self):
         return not self.connection.mysql_is_mariadb
@@ -300,12 +285,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         operator.attrgetter("supports_select_intersection")
     )
 
-    @cached_property
-    def can_rename_index(self):
-        if self.connection.mysql_is_mariadb:
-            return self.connection.mysql_version >= (10, 5, 2)
-        return True
-
     @cached_property
     def supports_expression_defaults(self):
         if self.connection.mysql_is_mariadb:

django/db/backends/mysql/schema.py

@@ -43,15 +43,6 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
             return "ALTER TABLE %(table)s DROP CONSTRAINT IF EXISTS %(name)s"
         return "ALTER TABLE %(table)s DROP CHECK %(name)s"
 
-    @property
-    def sql_rename_column(self):
-        is_mariadb = self.connection.mysql_is_mariadb
-        if is_mariadb and self.connection.mysql_version < (10, 5, 2):
-            # MariaDB < 10.5.2 doesn't support an
-            # "ALTER TABLE ... RENAME COLUMN" statement.
-            return "ALTER TABLE %(table)s CHANGE %(old_column)s %(new_column)s %(type)s"
-        return super().sql_rename_column
-
     def quote_value(self, value):
         self.connection.ensure_connection()
         # MySQLdb escapes to string, PyMySQL to bytes.
@@ -241,16 +232,10 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
         )
 
     def _field_db_check(self, field, field_db_params):
-        if self.connection.mysql_is_mariadb and self.connection.mysql_version >= (
+        if self.connection.mysql_is_mariadb:
-            10,
-            5,
-            2,
-        ):
             return super()._field_db_check(field, field_db_params)
-        # On MySQL and MariaDB < 10.5.2 (no support for
+        # On MySQL, check constraints with the column name as it requires
-        # "ALTER TABLE ... RENAME COLUMN" statements), check constraints with
+        # explicit recreation when the column is renamed.
-        # the column name as it requires explicit recreation when the column is
-        # renamed.
         return field_db_params["check"]
 
     def _rename_field_sql(self, table, old_field, new_field, new_type):

docs/ref/databases.txt

@@ -417,7 +417,7 @@ non-durable <https://www.postgresql.org/docs/current/non-durability.html>`_.
 MariaDB notes
 =============
 
-Django supports MariaDB 10.5 and higher.
+Django supports MariaDB 10.6 and higher.
 
 To use MariaDB, use the MySQL backend, which is shared between the two. See the
 :ref:`MySQL notes <mysql-notes>` for more details.
@@ -774,7 +774,7 @@ a :exc:`~django.db.NotSupportedError` is raised.
 =============== ========= =====
 Option          MariaDB   MySQL
 =============== ========= =====
-``SKIP LOCKED`` X (≥10.6) X
+``SKIP LOCKED`` X         X
 ``NOWAIT``      X         X
 ``OF``                    X
 ``NO KEY``

docs/ref/migration-operations.txt

@@ -259,9 +259,8 @@ Exactly one of ``old_name`` and ``old_fields`` can be provided. ``old_fields``
 is an iterable of the strings, often corresponding to fields of
 ``index_together`` (pre-Django 5.1 option).
 
-On databases that don't support an index renaming statement (SQLite and MariaDB
+On databases that don't support an index renaming statement (SQLite), the
-< 10.5.2), the operation will drop and recreate the index, which can be
+operation will drop and recreate the index, which can be expensive.
-expensive.
 
 ``AddConstraint``
 -----------------

docs/releases/6.0.txt

@@ -237,6 +237,12 @@ backends.
 
 * ...
 
+Dropped support for MariaDB 10.5
+--------------------------------
+
+Upstream support for MariaDB 10.5 ends in June 2025. Django 6.0 supports
+MariaDB 10.6 and higher.
+
 Dropped support for Python < 3.12
 ---------------------------------
 

tests/backends/mysql/tests.py

@@ -106,8 +106,8 @@ class Tests(TestCase):
     @mock.patch.object(connection, "get_database_version")
     def test_check_database_version_supported(self, mocked_get_database_version):
         if connection.mysql_is_mariadb:
-            mocked_get_database_version.return_value = (10, 4)
+            mocked_get_database_version.return_value = (10, 5)
-            msg = "MariaDB 10.5 or later is required (found 10.4)."
+            msg = "MariaDB 10.6 or later is required (found 10.5)."
         else:
             mocked_get_database_version.return_value = (8, 0, 4)
             msg = "MySQL 8.0.11 or later is required (found 8.0.4)."