diff --git a/docs/HISTORY.txt b/docs/HISTORY.txt
index 6ce2a34..6e1616a 100644
--- a/docs/HISTORY.txt
+++ b/docs/HISTORY.txt
@@ -1,13 +1,20 @@
 Changelog
 =========
 
-1.4.6 (unreleased)
+1.4.7 (unreleased)
 ------------------
 
 - Do not use key/value pairs in tipologia_bando and destinatari.
   [cekk]
 
 
+1.4.6 (2024-09-09)
+------------------
+
+- Add effective and modified date to retrieveContentsOfFolderDeepening data.
+  [cekk]
+
+
 1.4.5 (2024-04-15)
 ------------------
 
diff --git a/redturtle/bandi/browser/bando.py b/redturtle/bandi/browser/bando.py
index cc2d209..518c945 100644
--- a/redturtle/bandi/browser/bando.py
+++ b/redturtle/bandi/browser/bando.py
@@ -14,9 +14,9 @@
 from zope.interface import Interface
 from zope.schema.interfaces import IVocabularyFactory
 
-
 try:
     from plone.restapi.serializer.utils import uid_to_url
+    from plone.restapi.serializer.converters import json_compatible
 
     HAS_PLONERESTAPI = True
 except ImportError:
@@ -104,11 +104,17 @@ def retrieveContentsOfFolderDeepening(self, path_dfolder):
         siteid = api.portal.get().getId()
         for brain in brains:
             if not brain.getPath() == path_dfolder and not brain.exclude_from_nav:
+                effective = brain.effective
+                if effective.year() == 1969:
+                    # content not yet published
+                    effective = None
                 dictfields = dict(
                     title=brain.Title,
                     description=brain.Description,
                     url=brain.getURL(),
                     path=brain.getPath(),
+                    effective=effective,
+                    modified=brain.modified,
                 )
                 if brain.Type == "Link":
                     dictfields["url"] = brain.getRemoteUrl
@@ -128,9 +134,9 @@ def retrieveContentsOfFolderDeepening(self, path_dfolder):
                 elif brain.Type == "File":
                     obj_file = brain.getObject().file
                     if obj_file:
-                        dictfields[
-                            "url"
-                        ] = f"{brain.getURL()}/@@download/file/{obj_file.filename}"  # noqa E501
+                        dictfields["url"] = (
+                            f"{brain.getURL()}/@@download/file/{obj_file.filename}"  # noqa E501
+                        )
                         obj_size = obj_file.size
                         dictfields["filesize"] = self.getSizeString(obj_size)
                 # else:
@@ -139,6 +145,9 @@ def retrieveContentsOfFolderDeepening(self, path_dfolder):
                 # icon = getMultiAdapter((self.context, self.request, obj), IContentIcon)
                 # dictfields['icon'] = icon.html_tag()
                 dictfields["type"] = brain.Type
+
+                if HAS_PLONERESTAPI:
+                    dictfields = json_compatible(dictfields)
                 values.append(dictfields)
 
         return values
diff --git a/redturtle/bandi/testing.py b/redturtle/bandi/testing.py
index 6f9ea98..30dab14 100644
--- a/redturtle/bandi/testing.py
+++ b/redturtle/bandi/testing.py
@@ -1,17 +1,15 @@
 # -*- coding: utf-8 -*-
 from plone.app.contenttypes.testing import PLONE_APP_CONTENTTYPES_FIXTURE
-from plone.app.robotframework.testing import REMOTE_LIBRARY_BUNDLE_FIXTURE
 from plone.app.testing import applyProfile
 from plone.app.testing import FunctionalTesting
 from plone.app.testing import IntegrationTesting
 from plone.app.testing import PloneSandboxLayer
-from plone.testing import z2
+from plone.testing.zope import WSGI_SERVER_FIXTURE
 
 import redturtle.bandi
 
 
-class RedTurtleBandiLayer(PloneSandboxLayer):
-
+class TestLayer(PloneSandboxLayer):
     defaultBases = (PLONE_APP_CONTENTTYPES_FIXTURE,)
 
     def setUpZope(self, app, configurationContext):
@@ -21,29 +19,24 @@ def setUpZope(self, app, configurationContext):
         self.loadZCML(package=redturtle.bandi)
 
     def setUpPloneSite(self, portal):
-        applyProfile(portal, 'redturtle.bandi:default')
+        applyProfile(portal, "redturtle.bandi:default")
 
 
-REDTURTLE_BANDI_FIXTURE = RedTurtleBandiLayer()
+FIXTURE = TestLayer()
 
 
-REDTURTLE_BANDI_INTEGRATION_TESTING = IntegrationTesting(
-    bases=(REDTURTLE_BANDI_FIXTURE,),
-    name='RedTurtleBandiLayer:IntegrationTesting',
+INTEGRATION_TESTING = IntegrationTesting(
+    bases=(FIXTURE,),
+    name="RedturtleBandiLayer:IntegrationTesting",
 )
 
 
-REDTURTLE_BANDI_FUNCTIONAL_TESTING = FunctionalTesting(
-    bases=(REDTURTLE_BANDI_FIXTURE,),
-    name='RedTurtleBandiLayer:FunctionalTesting',
+FUNCTIONAL_TESTING = FunctionalTesting(
+    bases=(FIXTURE,),
+    name="RedturtleBandiLayer:FunctionalTesting",
 )
 
-
-REDTURTLE_BANDI_ACCEPTANCE_TESTING = FunctionalTesting(
-    bases=(
-        REDTURTLE_BANDI_FIXTURE,
-        REMOTE_LIBRARY_BUNDLE_FIXTURE,
-        z2.ZSERVER_FIXTURE,
-    ),
-    name='RedTurtleBandiLayer:AcceptanceTesting',
+RESTAPI_TESTING = FunctionalTesting(
+    bases=(FIXTURE, WSGI_SERVER_FIXTURE),
+    name="RedturtleBandiLayer:RestAPITesting",
 )
diff --git a/redturtle/bandi/tests/example.txt b/redturtle/bandi/tests/example.txt
new file mode 100644
index 0000000..d6459e0
--- /dev/null
+++ b/redturtle/bandi/tests/example.txt
@@ -0,0 +1 @@
+xxx
diff --git a/redturtle/bandi/tests/test_bando_view.py b/redturtle/bandi/tests/test_bando_view.py
index d4896c8..26a49cc 100644
--- a/redturtle/bandi/tests/test_bando_view.py
+++ b/redturtle/bandi/tests/test_bando_view.py
@@ -1,14 +1,16 @@
 # -*- coding: utf-8 -*-
-from redturtle.bandi.testing import REDTURTLE_BANDI_INTEGRATION_TESTING
 from plone import api
 from plone.app.testing import setRoles
 from plone.app.testing import TEST_USER_ID
+from plone.namedfile.file import NamedBlobFile
+from redturtle.bandi.testing import INTEGRATION_TESTING
 
+import os
 import unittest
 
 
 class BandoViewTest(unittest.TestCase):
-    layer = REDTURTLE_BANDI_INTEGRATION_TESTING
+    layer = INTEGRATION_TESTING
 
     def setUp(self):
         self.portal = self.layer["portal"]
@@ -104,3 +106,31 @@ def test_tipologia_bando_in_right_view(self):
         )
         self.assertIn("Announcement type", view_new())
         self.assertIn("Altro", view_new())
+
+    def test_dates_in_attachments(self):
+        folder = api.content.create(
+            container=self.bando, type="Bando Folder Deepening", title="attachments"
+        )
+
+        filename = os.path.join(os.path.dirname(__file__), "example.txt")
+        api.content.create(
+            container=folder,
+            type="File",
+            title="attachment",
+            file=NamedBlobFile(
+                data=open(filename, "rb").read(),
+                filename="example.txt",
+                contentType="text/plain",
+            ),
+        )
+
+        view = api.content.get_view(
+            name="bando_view", context=self.bando, request=self.request
+        )
+        data = view.retrieveContentsOfFolderDeepening(
+            "/".join(folder.getPhysicalPath())
+        )
+
+        self.assertEqual(len(data), 1)
+        self.assertIn("modified", data[0])
+        self.assertIn("effective", data[0])
diff --git a/redturtle/bandi/tests/test_collection_criteria.py b/redturtle/bandi/tests/test_collection_criteria.py
index ac34b7d..498f287 100644
--- a/redturtle/bandi/tests/test_collection_criteria.py
+++ b/redturtle/bandi/tests/test_collection_criteria.py
@@ -4,14 +4,14 @@
 from plone.app.testing import setRoles
 from plone.app.testing import TEST_USER_ID
 from plone.app.testing import TEST_USER_NAME
-from redturtle.bandi.testing import REDTURTLE_BANDI_FUNCTIONAL_TESTING
+from redturtle.bandi.testing import FUNCTIONAL_TESTING
 
 import unittest
 
 
 class TestCollectionCriteria(unittest.TestCase):
 
-    layer = REDTURTLE_BANDI_FUNCTIONAL_TESTING
+    layer = FUNCTIONAL_TESTING
 
     def setUp(self):
         self.portal = self.layer["portal"]
@@ -25,7 +25,7 @@ def setUp(self):
             container=self.portal,
             type="Bando",
             title="Bando with destinatari",
-            destinatari=[u"d1", u"d2", u"dà"],
+            destinatari=["d1", "d2", "dà"],
         )
 
         self.bando2 = api.content.create(
diff --git a/redturtle/bandi/tests/test_setup.py b/redturtle/bandi/tests/test_setup.py
index 3a6e436..e5ef0b0 100644
--- a/redturtle/bandi/tests/test_setup.py
+++ b/redturtle/bandi/tests/test_setup.py
@@ -5,7 +5,7 @@
 from plone.app.testing import TEST_USER_ID
 from plone.browserlayer import utils
 from redturtle.bandi.interfaces.browserlayer import IRedturtleBandiLayer
-from redturtle.bandi.testing import REDTURTLE_BANDI_INTEGRATION_TESTING
+from redturtle.bandi.testing import INTEGRATION_TESTING
 
 import unittest
 
@@ -18,19 +18,19 @@
 class TestSetup(unittest.TestCase):
     """Test that redturtle.bandi is properly installed."""
 
-    layer = REDTURTLE_BANDI_INTEGRATION_TESTING
+    layer = INTEGRATION_TESTING
 
     def setUp(self):
         """Custom shared utility setup for tests."""
-        self.portal = self.layer['portal']
+        self.portal = self.layer["portal"]
         if get_installer:
-            self.installer = get_installer(self.portal, self.layer['request'])
+            self.installer = get_installer(self.portal, self.layer["request"])
         else:
-            self.installer = api.portal.get_tool('portal_quickinstaller')
+            self.installer = api.portal.get_tool("portal_quickinstaller")
 
     def test_product_installed(self):
         """Test if redturtle.bandi is installed."""
-        self.assertTrue(self.installer.isProductInstalled('redturtle.bandi'))
+        self.assertTrue(self.installer.isProductInstalled("redturtle.bandi"))
 
     def test_browserlayer(self):
         """Test that IRedturtleBandiLayer is registered."""
@@ -40,24 +40,23 @@ def test_browserlayer(self):
 
 class TestUninstall(unittest.TestCase):
 
-    layer = REDTURTLE_BANDI_INTEGRATION_TESTING
+    layer = INTEGRATION_TESTING
 
     def setUp(self):
-        self.portal = self.layer['portal']
+        self.portal = self.layer["portal"]
         if get_installer:
-            self.installer = get_installer(self.portal, self.layer['request'])
+            self.installer = get_installer(self.portal, self.layer["request"])
         else:
-            self.installer = api.portal.get_tool('portal_quickinstaller')
+            self.installer = api.portal.get_tool("portal_quickinstaller")
         roles_before = api.user.get_roles(TEST_USER_ID)
-        setRoles(self.portal, TEST_USER_ID, ['Manager'])
-        self.installer.uninstallProducts(['redturtle.bandi'])
+        setRoles(self.portal, TEST_USER_ID, ["Manager"])
+        self.installer.uninstallProducts(["redturtle.bandi"])
         setRoles(self.portal, TEST_USER_ID, roles_before)
 
     def test_product_uninstalled(self):
         """Test if redturtle.bandi is cleanly uninstalled."""
-        self.assertFalse(self.installer.isProductInstalled('redturtle.bandi'))
+        self.assertFalse(self.installer.isProductInstalled("redturtle.bandi"))
 
     def test_browserlayer_removed(self):
         """Test that IRedturtleBandiLayer is removed."""
         self.assertNotIn(IRedturtleBandiLayer, utils.registered_layers())
-
diff --git a/setup.py b/setup.py
index 72cfddc..16e7d90 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 import os
 from setuptools import setup, find_packages
 
-version = "1.4.6.dev0"
+version = "1.4.7.dev0"
 
 setup(
     name="redturtle.bandi",
@@ -56,7 +56,8 @@
             "plone.testing>=5.0.0",
             "plone.app.contenttypes",
             "plone.app.robotframework[debug]",
-        ]
+            "collective.MockMailHost",
+        ],
     },
     test_suite="redturtle.bandi.tests.test_docs.test_suite",
     entry_points="""