diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 55d2dc7..1cda87f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
     needs: lint
     strategy:
       matrix:
-        ckan-version: ["2.10", 2.9, 2.9-py2, 2.8, 2.7]
+        ckan-version: [master, "2.10", 2.9, 2.9-py2, 2.8, 2.7]
       fail-fast: false
 
     name: CKAN ${{ matrix.ckan-version }}
diff --git a/ckanext/envvars/tests/test_base_envvars.py b/ckanext/envvars/tests/test_base_envvars.py
index 0a33d9f..e15db8d 100644
--- a/ckanext/envvars/tests/test_base_envvars.py
+++ b/ckanext/envvars/tests/test_base_envvars.py
@@ -1,4 +1,7 @@
 import os
+
+import pytest
+
 import ckan.plugins as p
 import ckantoolkit as tk
 from ckanext.envvars.plugin import EnvvarsPlugin
@@ -122,8 +125,11 @@ def test_core_ckan_envvar_values_in_config(self, datastore_configure):
         assert tk.config['smtp.user'] == 'my_user'
         assert tk.config['smtp.password'] == 'password'
         assert tk.config['smtp.mail_from'] == 'server@example.com'
-        # See https://github.com/ckan/ckan/pull/7502
-        assert tk.config['smtp.starttls'] == 'True'
+        if tk.check_ckan_version(min_version='2.11'):
+            assert tk.config['smtp.starttls'] is True
+        else:
+            assert tk.config['smtp.starttls'] == 'True'
+
 
         if tk.check_ckan_version(min_version='2.10'):
             assert tk.config['ckan.datasets_per_page'] == 14
@@ -134,10 +140,14 @@ def test_core_ckan_envvar_values_in_config(self, datastore_configure):
 
         self._teardown_env_vars(core_ckan_env_var_list)
 
+    @pytest.mark.skipif(tk.check_ckan_version(min_version='2.11'), reason="This does not apply to CKAN>=2.11")
     @mock.patch('ckanext.datastore.plugin.DatastorePlugin.configure')
     def test_core_ckan_envvar_values_in_config_take_precedence(self, datastore_configure):
         '''Core CKAN env var transformations take precedence over this
-        extension'''
+        extension in CKAN<2.11
+
+        See https://github.com/ckan/ckan/pull/7502#issuecomment-1499049307
+        '''
 
         combined_list = [
             ('CKAN___SQLALCHEMY__URL', 'postgresql://thisextensionformat/'),
@@ -149,3 +159,22 @@ def test_core_ckan_envvar_values_in_config_take_precedence(self, datastore_confi
         assert tk.config['sqlalchemy.url'] == 'postgresql://coreckanformat/'
 
         self._teardown_env_vars(combined_list)
+
+    @pytest.mark.skipif(tk.check_ckan_version(max_version='2.11'), reason="This does not apply to CKAN<2.11")
+    @mock.patch('ckanext.datastore.plugin.DatastorePlugin.configure')
+    def test_core_ckan_envvar_values_in_config_does_not_take_precedence(self, datastore_configure):
+        '''This extension takes precedence over Core CKAN env var transformations in CKAN>=2.11
+
+        See https://github.com/ckan/ckan/pull/7502#issuecomment-1499049307
+        '''
+
+        combined_list = [
+            ('CKAN___SQLALCHEMY__URL', 'postgresql://thisextensionformat/'),
+            ('CKAN_SQLALCHEMY_URL', 'postgresql://coreckanformat/'),
+        ]
+
+        self._setup_env_vars(combined_list)
+
+        assert tk.config['sqlalchemy.url'] == 'postgresql://thisextensionformat/'
+
+        self._teardown_env_vars(combined_list)