diff --git a/addons/hr/models/hr_employee.py b/addons/hr/models/hr_employee.py
index dc20f57822e22f..b470d2d7f557ef 100644
--- a/addons/hr/models/hr_employee.py
+++ b/addons/hr/models/hr_employee.py
@@ -495,7 +495,8 @@ def _compute_legal_name(self):
     @api.depends('current_version_id')
     @api.depends_context('version_id')
     def _compute_version_id(self):
-        context_version = self.env['hr.version'].browse(self.env.context.get('version_id', False))
+        context_version_id = self.env.context.get('version_id', False)
+        context_version = self.env['hr.version'].browse(context_version_id).exists() if context_version_id else self.env['hr.version']
 
         for employee in self:
             if context_version.employee_id == self:
diff --git a/addons/hr/tests/test_hr_version.py b/addons/hr/tests/test_hr_version.py
index ab585bc77163f2..241f7632a7926c 100644
--- a/addons/hr/tests/test_hr_version.py
+++ b/addons/hr/tests/test_hr_version.py
@@ -676,3 +676,20 @@ def test_hr_version_fields_tracking(self):
             fields_without_tracking,
             f"The following hr.version fields should have tracking=True: {fields_without_tracking}",
         )
+
+    def test_delete_hr_version(self):
+        employee = self.env['hr.employee'].create(
+            {
+                'name': 'John Doe',
+                'date_version': '2024-01-01',
+            }
+        )
+
+        version1 = employee.version_id
+        version2 = employee.create_version({
+            'date_version': '2025-01-01',
+        })
+
+        version1.unlink()
+        with self.assertRaises(ValidationError):
+            version2.unlink()
diff --git a/addons/hr/views/hr_employee_views.xml b/addons/hr/views/hr_employee_views.xml
index 3a733cf199e426..08dd2b395ff163 100644
--- a/addons/hr/views/hr_employee_views.xml
+++ b/addons/hr/views/hr_employee_views.xml
@@ -370,7 +370,7 @@
                                             <span invisible="not contract_date_start">to</span>
                                             <field name="contract_date_end" string="End Date" placeholder="Indefinite"
                                                 class="o_hr_narrow_field ms-3" invisible="not contract_date_start"/>
-                                            <widget name="button_new_contract"/>
+                                            <widget name="button_new_contract" invisible="not contract_date_start"/>
                                         </div>
                                         <label for="wage"/>
                                         <div class="o_row" name="wage">
diff --git a/addons/hr_holidays/models/hr_leave_type.py b/addons/hr_holidays/models/hr_leave_type.py
index 8cedee4bed9165..f93d621cc8a732 100644
--- a/addons/hr_holidays/models/hr_leave_type.py
+++ b/addons/hr_holidays/models/hr_leave_type.py
@@ -280,7 +280,7 @@ def _search_virtual_remaining_leaves(self, operator, value):
         leave_types = self.env['hr.leave.type'].search([])
 
         def is_valid(leave_type):
-            return not leave_type.requires_allocation or op(leave_type.virtual_remaining_leaves)
+            return not leave_type.requires_allocation or op(leave_type.virtual_remaining_leaves, value)
         return [('id', 'in', leave_types.filtered(is_valid).ids)]
 
     @api.depends_context('employee_id', 'default_employee_id', 'leave_date_from', 'default_date_from')
diff --git a/addons/hr_holidays/tests/test_hr_leave_type.py b/addons/hr_holidays/tests/test_hr_leave_type.py
index b7732013987c5d..f2ae35af62bc7e 100644
--- a/addons/hr_holidays/tests/test_hr_leave_type.py
+++ b/addons/hr_holidays/tests/test_hr_leave_type.py
@@ -114,3 +114,59 @@ def test_users_tz_shift_back(self):
             ).search([('has_valid_allocation', '=', True)], limit=1)
 
         self.assertFalse(leave_types, "Got valid leaves outside vaild period")
+
+    def test_search_virtual_remaining_leaves(self):
+        employee = self.env['hr.employee'].create({'name': 'Test Employee'})
+        leave_type_1 = self.env['hr.leave.type'].create({
+            'name': 'Test Leave 1',
+            'requires_allocation': True,
+        })
+        leave_type_2 = self.env['hr.leave.type'].create({
+            'name': 'Test Leave 2',
+            'requires_allocation': False,
+        })
+
+        self.env['hr.leave.allocation'].sudo().create({
+            'state': 'confirm',
+            'holiday_status_id': leave_type_1.id,
+            'employee_id': employee.id,
+            'number_of_days': 4,
+            'date_from': '2025-01-01',
+            'date_to': '2025-12-31',
+        }).action_approve()
+
+        result = (
+            self.env["hr.leave.type"]
+            .with_context(employee_id=employee.id)
+            .search([("virtual_remaining_leaves", ">", 0)])
+        )
+        self.assertIn(
+            leave_type_1, result, "Leave Type 1 should be in the result as it has remaining leaves",
+        )
+        self.assertIn(
+            leave_type_2, result, "Leave Type 2 should be in the result since it does not require allocation",
+        )
+
+        result = (
+            self.env["hr.leave.type"]
+            .with_context(employee_id=employee.id)
+            .search([("virtual_remaining_leaves", "=", 0)])
+        )
+        self.assertNotIn(
+            leave_type_1, result, "Leave Type 1 should not be in the result as it has remaining leaves != 0",
+        )
+        self.assertIn(
+            leave_type_2, result, "Leave Type 2 should be in the result since it does not require allocation",
+        )
+
+        result = (
+            self.env["hr.leave.type"]
+            .with_context(employee_id=employee.id)
+            .search([("virtual_remaining_leaves", ">", 4)])
+        )
+        self.assertNotIn(
+            leave_type_1, result, "Leave Type 1 should not be in the result",
+        )
+        self.assertIn(
+            leave_type_2, result, "Leave Type 2 should be in the result since it does not require allocation",
+        )
diff --git a/addons/hr_skills/report/hr_employee_certification_report_views.xml b/addons/hr_skills/report/hr_employee_certification_report_views.xml
index 079ef1f790fd91..ee4394a120b6b7 100644
--- a/addons/hr_skills/report/hr_employee_certification_report_views.xml
+++ b/addons/hr_skills/report/hr_employee_certification_report_views.xml
@@ -45,27 +45,4 @@
         </field>
     </record>
 
-    <record id="hr_employee_certification_report_action" model="ir.actions.act_window">
-        <field name="name">Certification</field>
-        <field name="res_model">hr.employee.certification.report</field>
-        <field name="search_view_id" ref="hr_employee_certification_report_view_search"/>
-        <field name="view_mode">list,pivot</field>
-        <field name="context">{
-            'search_default_employee': 1,
-        }</field>
-        <field name="help" type="html">
-            <p class="o_view_nocontent_empty_folder">
-            </p><p>
-                This report will give you an overview of the certification per Employee.
-                Create them in configuration and add them on the Employee.
-            </p>
-        </field>
-    </record>
-
-    <menuitem
-        id="hr_employee_certification_report_menu"
-        name="Certifications"
-        action="hr_employee_certification_report_action"
-        parent="hr_skills.hr_employee_skill_report_menu"
-        sequence="25"/>
 </odoo>
diff --git a/addons/hr_skills/report/hr_employee_skill_report_views.xml b/addons/hr_skills/report/hr_employee_skill_report_views.xml
index bddca497eb6efa..86b997da5ffbbe 100644
--- a/addons/hr_skills/report/hr_employee_skill_report_views.xml
+++ b/addons/hr_skills/report/hr_employee_skill_report_views.xml
@@ -89,6 +89,6 @@
         id="hr_employee_skill_inventory_report_menu"
         name="Skills Inventory"
         action="hr_employee_skill_report_action"
-        parent="hr_skills.hr_employee_skill_report_menu"
+        parent="hr.hr_menu_hr_reports"
         sequence="15"/>
 </odoo>
diff --git a/addons/hr_skills/views/hr_views.xml b/addons/hr_skills/views/hr_views.xml
index d90f958e3c8583..3e6e8d47e4ca92 100644
--- a/addons/hr_skills/views/hr_views.xml
+++ b/addons/hr_skills/views/hr_views.xml
@@ -593,7 +593,7 @@
         <field name="res_model">hr.employee.skill</field>
         <field name="path">certifications</field>
         <field name="domain">[('is_certification', '=', True)]</field>
-        <field name="context">{'show_employee': True, 'search_default_group_by_type': 1}</field>
+        <field name="context">{'show_employee': True}</field>
         <field name="view_mode">list,form</field>
         <field name="view_ids" eval="[(5, 0, 0),
             (0, 0, {'view_mode': 'list', 'view_id': False}),
@@ -608,12 +608,6 @@
         sequence="7"
         groups="hr.group_hr_user"/>
 
-    <menuitem
-    id="hr_employee_skill_report_menu"
-    name="Skills"
-    parent="hr.hr_menu_hr_reports"
-    sequence="15"/>
-
     <menuitem
         id="hr_skill_learning_menu"
         name="Learning"