Fixed #36623 -- Dropped support for PostgreSQL 14 and PostGIS 3.1.

13 files changed, 31 insertions, 30 deletions

diff --git a/.github/workflows/schedule_tests.yml b/.github/workflows/schedule_tests.yml
index ed3b6b9428..c4d559ec95 100644
--- a/.github/workflows/schedule_tests.yml
+++ b/.github/workflows/schedule_tests.yml
@@ -104,7 +104,7 @@ jobs:
     name: Selenium tests, PostgreSQL
     services:
       postgres:
-        image: postgres:14-alpine
+        image: postgres:15-alpine
         env:
           POSTGRES_DB: django
           POSTGRES_USER: user
diff --git a/.github/workflows/selenium.yml b/.github/workflows/selenium.yml
index 9348a3550a..9cb71c9143 100644
--- a/.github/workflows/selenium.yml
+++ b/.github/workflows/selenium.yml
@@ -43,7 +43,7 @@ jobs:
     name: PostgreSQL
     services:
       postgres:
-        image: postgres:14-alpine
+        image: postgres:15-alpine
         env:
           POSTGRES_DB: django
           POSTGRES_USER: user
diff --git a/django/contrib/gis/db/backends/postgis/operations.py b/django/contrib/gis/db/backends/postgis/operations.py
index df3cc7c7ee..5a403fd7fe 100644
--- a/django/contrib/gis/db/backends/postgis/operations.py
+++ b/django/contrib/gis/db/backends/postgis/operations.py
@@ -204,7 +204,7 @@ class PostGISOperations(BaseSpatialOperations, DatabaseOperations):
                 raise ImproperlyConfigured(
                     'Cannot determine PostGIS version for database "%s" '
                     'using command "SELECT postgis_lib_version()". '
-                    "GeoDjango requires at least PostGIS version 3.1. "
+                    "GeoDjango requires at least PostGIS version 3.2. "
                     "Was the database created from a spatial database "
                     "template?" % self.connection.settings_dict["NAME"]
                 )
diff --git a/django/db/backends/postgresql/features.py b/django/db/backends/postgresql/features.py
index 23c31c0929..5bbf4b86cb 100644
--- a/django/db/backends/postgresql/features.py
+++ b/django/db/backends/postgresql/features.py
@@ -7,7 +7,7 @@ from django.utils.functional import cached_property
 
 
 class DatabaseFeatures(BaseDatabaseFeatures):
-    minimum_database_version = (14,)
+    minimum_database_version = (15,)
     allows_group_by_selected_pks = True
     can_return_columns_from_insert = True
     can_return_rows_from_bulk_insert = True
@@ -67,6 +67,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_update_conflicts_with_target = True
     supports_covering_indexes = True
     supports_stored_generated_columns = True
+    supports_nulls_distinct_unique_constraints = True
     can_rename_index = True
     test_collations = {
         "deterministic": "C",
@@ -156,10 +157,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         }
 
     @cached_property
-    def is_postgresql_15(self):
-        return self.connection.pg_version >= 150000
-
-    @cached_property
     def is_postgresql_16(self):
         return self.connection.pg_version >= 160000
 
@@ -172,10 +169,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         return self.connection.pg_version >= 180000
 
     supports_unlimited_charfield = True
-    supports_nulls_distinct_unique_constraints = property(
-        operator.attrgetter("is_postgresql_15")
-    )
-
     supports_any_value = property(operator.attrgetter("is_postgresql_16"))
     supports_virtual_generated_columns = property(
         operator.attrgetter("is_postgresql_18")
diff --git a/docs/ref/contrib/gis/install/geolibs.txt b/docs/ref/contrib/gis/install/geolibs.txt
index f6dba16906..ab9c8a27dc 100644
--- a/docs/ref/contrib/gis/install/geolibs.txt
+++ b/docs/ref/contrib/gis/install/geolibs.txt
@@ -17,7 +17,7 @@ Program                         Description                           Required
 `PROJ`_                         Cartographic Projections library      Yes (PostgreSQL and SQLite only)  9.x, 8.x, 7.x, 6.x
 :ref:`GDAL <gdal-overview>`     Geospatial Data Abstraction Library   Yes                               3.11, 3.10, 3.9, 3.8, 3.7, 3.6, 3.5, 3.4, 3.3, 3.2, 3.1
 :ref:`GeoIP <geoip2-overview>`  IP-based geolocation library          No                                2
-`PostGIS`__                     Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.5, 3.4, 3.3, 3.2, 3.1
+`PostGIS`__                     Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.5, 3.4, 3.3, 3.2
 `SpatiaLite`__                  Spatial extensions for SQLite         Yes (SQLite only)                 5.1, 5.0, 4.3
 ==============================  ====================================  ================================  =======================================================
 
@@ -44,7 +44,6 @@ totally fine with GeoDjango. Your mileage may vary.
     GDAL 3.9.0 2024-05-10
     GDAL 3.10.0 2024-11-06
     GDAL 3.11.0 2025-05-09
-    PostGIS 3.1.0 2020-12-18
     PostGIS 3.2.0 2021-12-18
     PostGIS 3.3.0 2022-08-27
     PostGIS 3.4.0 2023-08-15
diff --git a/docs/ref/contrib/gis/install/index.txt b/docs/ref/contrib/gis/install/index.txt
index 9421723eb8..e08c78b147 100644
--- a/docs/ref/contrib/gis/install/index.txt
+++ b/docs/ref/contrib/gis/install/index.txt
@@ -57,7 +57,7 @@ supported versions, and any notes for each of the supported database backends:
 ==================  ==============================  ==================  =========================================
 Database            Library Requirements            Supported Versions  Notes
 ==================  ==============================  ==================  =========================================
-PostgreSQL          GEOS, GDAL, PROJ, PostGIS       14+                 Requires PostGIS.
+PostgreSQL          GEOS, GDAL, PROJ, PostGIS       15+                 Requires PostGIS.
 MySQL               GEOS, GDAL                      8.0.11+             :ref:`Limited functionality <mysql-spatial-limitations>`.
 Oracle              GEOS, GDAL                      19+                 XE not supported.
 SQLite              GEOS, GDAL, PROJ, SpatiaLite    3.31.0+             Requires SpatiaLite 4.3+
@@ -305,7 +305,7 @@ Summary:
 
 .. code-block:: shell
 
-    $ sudo port install postgresql14-server
+    $ sudo port install postgresql15-server
     $ sudo port install geos
     $ sudo port install proj6
     $ sudo port install postgis3
@@ -319,14 +319,14 @@ Summary:
 
     .. code-block:: shell
 
-        export PATH=/opt/local/bin:/opt/local/lib/postgresql14/bin
+        export PATH=/opt/local/bin:/opt/local/lib/postgresql15/bin
 
     In addition, add the ``DYLD_FALLBACK_LIBRARY_PATH`` setting so that
     the libraries can be found by Python:
 
     .. code-block:: shell
 
-        export DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib:/opt/local/lib/postgresql14
+        export DYLD_FALLBACK_LIBRARY_PATH=/opt/local/lib:/opt/local/lib/postgresql15
 
 __ https://www.macports.org/
 
diff --git a/docs/ref/contrib/postgres/aggregates.txt b/docs/ref/contrib/postgres/aggregates.txt
index d2bd48c4fd..1825ec2fc5 100644
--- a/docs/ref/contrib/postgres/aggregates.txt
+++ b/docs/ref/contrib/postgres/aggregates.txt
@@ -76,7 +76,7 @@ General-purpose aggregation functions
 .. class:: BitXor(expression, filter=None, default=None, **extra)
 
     Returns an ``int`` of the bitwise ``XOR`` of all non-null input values, or
-    ``default`` if all values are null. It requires PostgreSQL 14+.
+    ``default`` if all values are null.
 
 ``BoolAnd``
 -----------
diff --git a/docs/ref/contrib/postgres/constraints.txt b/docs/ref/contrib/postgres/constraints.txt
index 4d13eddd24..ee8ef02aa2 100644
--- a/docs/ref/contrib/postgres/constraints.txt
+++ b/docs/ref/contrib/postgres/constraints.txt
@@ -130,8 +130,7 @@ used for queries that select only included fields
 (:attr:`~ExclusionConstraint.include`) and filter only by indexed fields
 (:attr:`~ExclusionConstraint.expressions`).
 
-``include`` is supported for GiST indexes. PostgreSQL 14+ also supports
-``include`` for SP-GiST indexes.
+``include`` is supported for GiST and SP-GiST indexes.
 
 ``violation_error_code``
 ------------------------
diff --git a/docs/ref/databases.txt b/docs/ref/databases.txt
index 19af564100..cbd0e2feea 100644
--- a/docs/ref/databases.txt
+++ b/docs/ref/databases.txt
@@ -119,7 +119,7 @@ below for information on how to set up your database correctly.
 PostgreSQL notes
 ================
 
-Django supports PostgreSQL 14 and higher. `psycopg`_ 3.1.12+ or `psycopg2`_
+Django supports PostgreSQL 15 and higher. `psycopg`_ 3.1.12+ or `psycopg2`_
 2.9.9+ is required, though the latest `psycopg`_ 3.1.12+ is recommended.
 
 .. note::
diff --git a/docs/ref/models/constraints.txt b/docs/ref/models/constraints.txt
index 34be41962b..9a51c5c7a2 100644
--- a/docs/ref/models/constraints.txt
+++ b/docs/ref/models/constraints.txt
@@ -273,7 +273,7 @@ creates a unique constraint that only allows one row to store a ``NULL`` value
 in the ``ordering`` column.
 
 Unique constraints with ``nulls_distinct`` are ignored for databases besides
-PostgreSQL 15+.
+PostgreSQL.
 
 ``violation_error_code``
 ------------------------
diff --git a/docs/ref/models/indexes.txt b/docs/ref/models/indexes.txt
index 6046abf029..d2b2430643 100644
--- a/docs/ref/models/indexes.txt
+++ b/docs/ref/models/indexes.txt
@@ -214,9 +214,8 @@ See the PostgreSQL documentation for more details about `covering indexes`_.
 
 .. admonition:: Restrictions on PostgreSQL
 
-    PostgreSQL supports covering B-Tree and :class:`GiST indexes
-    <django.contrib.postgres.indexes.GistIndex>`. PostgreSQL 14+ also supports
-    covering :class:`SP-GiST indexes
+    PostgreSQL supports covering B-Tree, :class:`GiST indexes
+    <django.contrib.postgres.indexes.GistIndex>`, and :class:`SP-GiST indexes
     <django.contrib.postgres.indexes.SpGistIndex>`.
 
 .. _covering indexes: https://www.postgresql.org/docs/current/indexes-index-only-scans.html
diff --git a/docs/releases/6.1.txt b/docs/releases/6.1.txt
index 97a9d05d9d..5e852785d9 100644
--- a/docs/releases/6.1.txt
+++ b/docs/releases/6.1.txt
@@ -248,6 +248,17 @@ backends.
   database has native support for ``DurationField``, override this method to
   simply return the value.
 
+:mod:`django.contrib.gis`
+-------------------------
+
+* Support for PostGIS 3.1 is removed.
+
+Dropped support for PostgreSQL 14
+---------------------------------
+
+Upstream support for PostgreSQL 14 ends in November 2026. Django 6.1 supports
+PostgreSQL 15 and higher.
+
 Miscellaneous
 -------------
 
diff --git a/tests/backends/postgresql/tests.py b/tests/backends/postgresql/tests.py
index c5fa17041c..f7e7d1e68c 100644
--- a/tests/backends/postgresql/tests.py
+++ b/tests/backends/postgresql/tests.py
@@ -549,12 +549,12 @@ class Tests(TestCase):
 
     def test_get_database_version(self):
         new_connection = no_pool_connection()
-        new_connection.pg_version = 140009
-        self.assertEqual(new_connection.get_database_version(), (14, 9))
+        new_connection.pg_version = 150009
+        self.assertEqual(new_connection.get_database_version(), (15, 9))
 
-    @mock.patch.object(connection, "get_database_version", return_value=(13,))
+    @mock.patch.object(connection, "get_database_version", return_value=(14,))
     def test_check_database_version_supported(self, mocked_get_database_version):
-        msg = "PostgreSQL 14 or later is required (found 13)."
+        msg = "PostgreSQL 15 or later is required (found 14)."
         with self.assertRaisesMessage(NotSupportedError, msg):
             connection.check_database_version_supported()
         self.assertTrue(mocked_get_database_version.called)