diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index a174ab2f..444b9e25 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -8,8 +8,15 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
-        django-version: ["32","4"]
+        include:
+          # Explicitly include Python 3.8 and 3.9 only with Django 4
+          - python-version: "3.8"
+            django-version: "4"
+          - python-version: "3.9"
+            django-version: "4"
+            # Define the general matrix for Python with Django 
+        python-version: ["3.10", "3.11", "3.12"]
+        django-version: ["4"]
     steps:
     - uses: actions/checkout@v4
 
@@ -21,7 +28,7 @@ jobs:
     - uses: actions/cache@v4
       with:
         path: ~/.cache/pip
-        key: ${{ hashFiles('requirements.txt') }}-${{ hashFiles('requirements-testing.txt')}}-${{ hashFiles('tox.ini') }}-${{ matrix.python-version }}-${{ matrix.django-version }}
+        key: ${{ hashFiles('requirements.txt') }}-${{ hashFiles('requirements-testing.txt')}}-${{ hashFiles('tox.ini') }}-${{ matrix.python-version }}-${{ matrix.django-version }} 
 
     - name: Install dependencies
       run: |
diff --git a/constraints-Django5.txt b/constraints-Django5.txt
new file mode 100644
index 00000000..a4769e29
--- /dev/null
+++ b/constraints-Django5.txt
@@ -0,0 +1 @@
+Django >=5,<6
diff --git a/helpdesk/query.py b/helpdesk/query.py
index 9c5a0930..ea69a133 100644
--- a/helpdesk/query.py
+++ b/helpdesk/query.py
@@ -1,6 +1,8 @@
 
 from base64 import b64decode, b64encode
-from django.db.models import Q
+from django.db.models import Q, Max
+from django.db.models import F, Window, Subquery, OuterRef
+from .models import FollowUp
 from django.urls import reverse
 from django.utils.html import escape
 from django.utils.translation import gettext as _
@@ -65,8 +67,9 @@ DATATABLES_ORDER_COLUMN_CHOICES = Choices(
     ('6', 'due_date'),
     ('7', 'assigned_to'),
     ('8', 'submitter_email'),
-    # ('9', 'time_spent'),
-    ('10', 'kbitem'),
+    ('9', 'last_followup'),
+    # ('10', 'time_spent'),
+    ('11', 'kbitem'),
 )
 
 
@@ -169,13 +172,26 @@ class __Query__:
         search_value = kwargs.get('search[value]', [""])[0]
         order_column = kwargs.get('order[0][column]', ['5'])[0]
         order = kwargs.get('order[0][dir]', ["asc"])[0]
-
+        
         order_column = DATATABLES_ORDER_COLUMN_CHOICES[order_column]
         # django orm '-' -> desc
         if order == 'desc':
             order_column = '-' + order_column
-
-        queryset = objects.all().order_by(order_by)
+        
+        queryset = objects.annotate(
+            last_followup=Subquery(
+                FollowUp.objects.order_by().annotate(
+                    last_followup=Window(
+                        expression=Max("date"),
+                        partition_by=[F("ticket_id"),],
+                        order_by="-date"
+                    )
+                ).filter(
+                    ticket_id=OuterRef("id")
+                ).values("last_followup").distinct()
+            )
+        ).order_by(order_by)
+        
         total = queryset.count()
 
         if search_value:  # Dead code currently
diff --git a/helpdesk/serializers.py b/helpdesk/serializers.py
index c8c4dbb7..142e6689 100644
--- a/helpdesk/serializers.py
+++ b/helpdesk/serializers.py
@@ -18,6 +18,7 @@ class DatatablesTicketSerializer(serializers.ModelSerializer):
     ticket = serializers.SerializerMethodField()
     assigned_to = serializers.SerializerMethodField()
     submitter = serializers.SerializerMethodField()
+    last_followup = serializers.SerializerMethodField()
     created = serializers.SerializerMethodField()
     due_date = serializers.SerializerMethodField()
     status = serializers.SerializerMethodField()
@@ -30,8 +31,8 @@ class DatatablesTicketSerializer(serializers.ModelSerializer):
         model = Ticket
         # fields = '__all__'
         fields = ('ticket', 'id', 'priority', 'title', 'queue', 'status',
-                  'created', 'due_date', 'assigned_to', 'submitter', 'row_class',
-                  'time_spent', 'kbitem')
+                  'created', 'due_date', 'assigned_to', 'submitter', 'last_followup',
+                  'row_class', 'time_spent', 'kbitem')
 
     def get_queue(self, obj):
         return {"title": obj.queue.title, "id": obj.queue.id}
@@ -70,8 +71,11 @@ class DatatablesTicketSerializer(serializers.ModelSerializer):
 
     def get_kbitem(self, obj):
         return obj.kbitem.title if obj.kbitem else ""
-
-
+        
+    def get_last_followup(self, obj):
+        return obj.last_followup
+        
+    
 class FollowUpAttachmentSerializer(serializers.ModelSerializer):
     class Meta:
         model = FollowUpAttachment
diff --git a/helpdesk/templates/helpdesk/report_index.html b/helpdesk/templates/helpdesk/report_index.html
index 63194afb..30470312 100644
--- a/helpdesk/templates/helpdesk/report_index.html
+++ b/helpdesk/templates/helpdesk/report_index.html
@@ -27,11 +27,11 @@
                 <tbody>
                     <tr>
                         <td>{% trans "Average number of days until ticket is closed (all tickets): " %}</td>
-                        <td><strong style="color: red;">{{ basic_ticket_stats.average_nbr_days_until_ticket_closed }}</strong>.</td>
+                        <td><strong style="color: red;">{{ basic_ticket_stats.average_nbr_days_until_ticket_closed|floatformat:2 }}</strong>.</td>
                     </tr>
                     <tr>
                         <td>{% trans "Average number of days until ticket is closed (tickets opened in last 60 days): " %}</td>
-                        <td><strong style="color: red;">{{ basic_ticket_stats.average_nbr_days_until_ticket_closed_last_60_days }}</strong>. {% trans "Click" %} <strong><a href="{% url 'helpdesk:report_index' %}daysuntilticketclosedbymonth">here</a></strong> {% trans "for detailed average by month." %} </td>
+                        <td><strong style="color: red;">{{ basic_ticket_stats.average_nbr_days_until_ticket_closed_last_60_days|floatformat:2 }}</strong>. {% trans "Click" %} <strong><a href="{% url 'helpdesk:report_index' %}daysuntilticketclosedbymonth">here</a></strong> {% trans "for detailed average by month." %} </td>
                     </tr>
                 </tbody>
             </table>
diff --git a/helpdesk/templates/helpdesk/ticket_list.html b/helpdesk/templates/helpdesk/ticket_list.html
index 2e644c7f..0059e81e 100644
--- a/helpdesk/templates/helpdesk/ticket_list.html
+++ b/helpdesk/templates/helpdesk/ticket_list.html
@@ -76,6 +76,7 @@
                                 <th>{% trans "Due Date" %}</th>
                                 <th>{% trans "Owner" %}</th>
                                 <th>{% trans "Submitter" %}</th>
+                                <th>{% trans "Last Followup" %}</th>
                                 {% if helpdesk_settings.HELPDESK_ENABLE_TIME_SPENT_ON_TICKET %}<th>{% trans "Time Spent" %}</th>{% endif %}
                                 {% if helpdesk_settings.HELPDESK_KB_ENABLED %}<th>{% trans "KB item" %}</th>{% endif %}
                             </tr>
@@ -330,7 +331,13 @@
     {% else %}
     <script src="{% static 'helpdesk/vendor/timeline3/js/timeline.js' %}"></script>
     {% endif %}
+
     <script>
+        window.helpdesk_settings = {
+            LANGUAGE_CODE: "{{ helpdesk_settings.LANGUAGE_CODE|default:'en-US' }}",
+            NO_FOLLOWUP_TEXT: "{% trans helpdesk_settings.ALTERNATIVE_UI_STRINGS.No_followup_found|default:'No followup found' %}"
+        };
+
         function get_url(row) {
             return "{% url 'helpdesk:view' 1234 %}".replace(/1234/, row.id.toString());
         }
@@ -415,6 +422,27 @@
                         }
                     },
                     {data: "submitter"},
+                    {
+                        data: "last_followup",
+                        render: function (data, type, row) {
+                            let locale = navigator.language || navigator.userLanguage || window.helpdesk_settings.LANGUAGE_CODE;
+                            
+                            if (isNaN(Date.parse(data))) {
+                                return window.helpdesk_settings.NO_FOLLOWUP_TEXT;
+                            }
+
+                            let date = new Date(data);
+                            return date.toLocaleString(locale, {
+                                weekday: "short",
+                                year: "numeric",
+                                month: "long",
+                                day: "numeric",
+                                hour: "2-digit",
+                                minute: "2-digit",
+                                hour12: true
+                            });
+                        }
+                    },
                     {% if helpdesk_settings.HELPDESK_ENABLE_TIME_SPENT_ON_TICKET %}
                     {data: "time_spent", "visible": false},
                     {% endif %}
diff --git a/helpdesk/tests/test_get_email.py b/helpdesk/tests/test_get_email.py
index bdd4274a..4f02ed96 100644
--- a/helpdesk/tests/test_get_email.py
+++ b/helpdesk/tests/test_get_email.py
@@ -280,7 +280,7 @@ class GetEmailCommonTests(TestCase):
             self.assertTrue(att_retrieved.filename.endswith(att_filename), "Filename of attached multipart not detected: %s" % (att_retrieved.filename))
             with att_retrieved.file.open('r') as f:
                 retrieved_content = f.read()
-                self.assertEquals(att_content, retrieved_content, "Retrieved attachment content different to original :\n\n%s\n\n%s" % (att_content, retrieved_content))
+                self.assertEqual(att_content, retrieved_content, "Retrieved attachment content different to original :\n\n%s\n\n%s" % (att_content, retrieved_content))
 
     def test_email_with_inline_and_multipart_as_attachments(self):
         """
diff --git a/helpdesk/tests/test_query.py b/helpdesk/tests/test_query.py
index f86faf55..f13ce1cd 100644
--- a/helpdesk/tests/test_query.py
+++ b/helpdesk/tests/test_query.py
@@ -64,8 +64,8 @@ class QueryTests(TestCase):
             resp_json,
             {
                 "data":
-                [{"ticket": "1 [test_queue-1]", "id": 1, "priority": 3, "title": "unassigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open", "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "row_class": "", "time_spent": "", "kbitem": ""},
-                 {"ticket": "2 [test_queue-2]", "id": 2, "priority": 3, "title": "assigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open", "created": resp_json["data"][1]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "row_class": "", "time_spent": "", "kbitem": "KBItem 1"}],
+                [{"ticket": "1 [test_queue-1]", "id": 1, "priority": 3, "title": "unassigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open", "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "last_followup": None, "row_class": "", "time_spent": "", "kbitem": ""},
+                 {"ticket": "2 [test_queue-2]", "id": 2, "priority": 3, "title": "assigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open", "created": resp_json["data"][1]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "last_followup": None, "row_class": "", "time_spent": "", "kbitem": "KBItem 1"}],
                 "recordsFiltered": 2,
                 "recordsTotal": 2,
                 "draw": 0,
@@ -85,7 +85,7 @@ class QueryTests(TestCase):
             {
                 "data":
                 [{"ticket": "2 [test_queue-2]", "id": 2, "priority": 3, "title": "assigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open",
-                    "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "row_class": "", "time_spent": "", "kbitem": "KBItem 1"}],
+                    "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "last_followup": None, "row_class": "", "time_spent": "", "kbitem": "KBItem 1"}],
                 "recordsFiltered": 1,
                 "recordsTotal": 1,
                 "draw": 0,
@@ -105,7 +105,7 @@ class QueryTests(TestCase):
             {
                 "data":
                 [{"ticket": "1 [test_queue-1]", "id": 1, "priority": 3, "title": "unassigned to kbitem", "queue": {"title": "Test queue", "id": 1}, "status": "Open",
-                    "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "row_class": "", "time_spent": "", "kbitem": ""}],
+                    "created": resp_json["data"][0]["created"], "due_date": None, "assigned_to": "None", "submitter": None, "last_followup": None, "row_class": "", "time_spent": "", "kbitem": ""}],
                 "recordsFiltered": 1,
                 "recordsTotal": 1,
                 "draw": 0,
diff --git a/helpdesk/views/staff.py b/helpdesk/views/staff.py
index 89aea899..21544247 100644
--- a/helpdesk/views/staff.py
+++ b/helpdesk/views/staff.py
@@ -1068,7 +1068,7 @@ def ticket_list(request):
 
         # SORTING
         sort = request.GET.get('sort', None)
-        if sort not in ('status', 'assigned_to', 'created', 'title', 'queue', 'priority', 'kbitem'):
+        if sort not in ('status', 'assigned_to', 'created', 'title', 'queue', 'priority', 'last_followup', 'kbitem'):
             sort = 'created'
         query_params['sorting'] = sort