diff --git a/docsource/modules150-160.rst b/docsource/modules150-160.rst
index be3e74354428..65b02bfaa0bd 100644
--- a/docsource/modules150-160.rst
+++ b/docsource/modules150-160.rst
@@ -176,7 +176,7 @@ Module coverage 15.0 -> 16.0
 +-------------------------------------------------+----------------------+-------------------------------------------------+
 | hr_gamification                                 | Nothing to do        |No DB layout changes.                            |
 +-------------------------------------------------+----------------------+-------------------------------------------------+
-| hr_holidays                                     |                      |                                                 |
+| hr_holidays                                     | Done                 |                                                 |
 +-------------------------------------------------+----------------------+-------------------------------------------------+
 | hr_holidays_attendance                          |                      |                                                 |
 +-------------------------------------------------+----------------------+-------------------------------------------------+
diff --git a/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/post-migration.py b/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/post-migration.py
new file mode 100644
index 000000000000..70aef7b5c96b
--- /dev/null
+++ b/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/post-migration.py
@@ -0,0 +1,25 @@
+# Copyright 2023 Coop IT Easy (https://coopiteasy.be)
+# Copyright 2024 Tecnativa - Pedro M. Baeza
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from openupgradelib import openupgrade
+
+
+def _set_allocation_validation_type(env):
+    """Convert the previous `set` value to `officer` as it's mostly the same. The only
+    difference is that previously if set is selected, the responsible could be empty,
+    and thus the own user was selected as approver - which was incorrect -.
+    """
+    openupgrade.logged_query(
+        env.cr,
+        """UPDATE hr_leave_type
+        SET allocation_validation_type = 'officer'
+        WHERE allocation_validation_type = 'set'
+        """,
+    )
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    _set_allocation_validation_type(env)
+    openupgrade.load_data(env.cr, "hr_holidays", "16.0.1.5/noupdate_changes.xml")
diff --git a/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/upgrade_analysis_work.txt b/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/upgrade_analysis_work.txt
new file mode 100644
index 000000000000..2bf32ed40eba
--- /dev/null
+++ b/openupgrade_scripts/scripts/hr_holidays/16.0.1.5/upgrade_analysis_work.txt
@@ -0,0 +1,44 @@
+---Models in module 'hr_holidays'---
+new model hr.holidays.cancel.leave [transient]
+# NOTHING TO DO: transient model
+
+new model hr.leave.stress.day
+# NOTHING TO DO: new feature
+
+---Fields in module 'hr_holidays'---
+hr_holidays  / hr.leave                 / active (boolean)              : NEW
+# NOTHING TO DO: default value is True.
+
+hr_holidays  / hr.leave                 / request_unit_custom (boolean) : DEL
+# NOTHING TO DO: not needed anymore. See : https://github.com/odoo/odoo/commit/81c8a0564d54c981e65a6ed3b2c70dd792d59a46
+
+hr_holidays  / hr.leave.accrual.level   / postpone_max_days (integer)   : NEW
+hr_holidays  / hr.leave.stress.day      / color (integer)               : NEW hasdefault: default
+hr_holidays  / hr.leave.stress.day      / company_id (many2one)         : NEW relation: res.company, required, hasdefault: default
+hr_holidays  / hr.leave.stress.day      / department_ids (many2many)    : NEW relation: hr.department
+hr_holidays  / hr.leave.stress.day      / end_date (date)               : NEW required
+hr_holidays  / hr.leave.stress.day      / name (char)                   : NEW required
+hr_holidays  / hr.leave.stress.day      / resource_calendar_id (many2one): NEW relation: resource.calendar
+hr_holidays  / hr.leave.stress.day      / start_date (date)             : NEW required
+# NOTHING TO DO: new feature
+
+hr_holidays  / hr.leave.type            / allocation_validation_type (selection): selection_keys is now '['no', 'officer']' ('['no', 'officer', 'set']')
+# DONE: post-migration: convert previous `set` values to `officer`. They acted the same except the responsible_id is not set. In that case, the user was selected as approver, which was incorrect.
+
+---XML records in module 'hr_holidays'---
+NEW ir.actions.act_window: hr_holidays.hr_leave_stress_day_action
+DEL ir.actions.act_window.view: hr_holidays.hr_leave_action_my_view_form
+DEL ir.actions.act_window.view: hr_holidays.hr_leave_action_my_view_tree
+NEW ir.model.access: hr_holidays.access_hr_holidays_cancel_leave
+NEW ir.model.access: hr_holidays.access_hr_leave_stress_day_manager
+NEW ir.model.access: hr_holidays.access_hr_leave_stress_day_user
+NEW ir.model.constraint: hr_holidays.constraint_hr_leave_stress_day_date_from_after_day_to
+NEW ir.rule: hr_holidays.hr_leave_stress_day_rule_multi_company (noupdate)
+NEW ir.ui.menu: hr_holidays.hr_holidays_stress_day_menu_configuration
+NEW ir.ui.view: hr_holidays.hr_holidays_cancel_leave_form
+NEW ir.ui.view: hr_holidays.hr_leave_report_view_form
+NEW ir.ui.view: hr_holidays.hr_leave_stress_day_view_form
+NEW ir.ui.view: hr_holidays.hr_leave_stress_day_view_list
+NEW ir.ui.view: hr_holidays.hr_leave_stress_day_view_search
+NEW ir.ui.view: hr_holidays.hr_leave_view_kanban_approve_department
+# NOTHING TO DO: managed by the ORM