Signer email addresses on signature requests can now only be changed by the person who created the request. This helps prevent unauthorized or unintended changes to recipients, improving trust and control in the signing process.

Forward-Port-Of: odoo/enterprise#126675

The Dutch payroll module now includes the 2026 income tax rates for residents. This helps payroll calculations stay aligned with upcoming Dutch tax requirements.

Added 2026 values for the residents' income tax rates rule parameter.

task-6462877

Forward-Port-Of: odoo/enterprise#127556

The `create_calendar_meeting` field on `hr.leave.type` allows users to choose if leave requests created with a given time off type generate a corresponding entry in the Calendar app. However, this field was not displayed on the form view. This commit adds `create_calendar_meeting` to the `hr.leave.type` form view inside the configuration section, along with dedicated help text explaining its behavior. --- I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

The `create_calendar_meeting` field on `hr.leave.type` allows users to choose if leave requests created with a given time off type generate a corresponding entry in the Calendar app. However, this field was not displayed on the form view.

This commit adds `create_calendar_meeting` to the `hr.leave.type` form view inside the configuration section, along with dedicated help text explaining its behavior.
---
I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

Forward-Port-Of: odoo/odoo#282242
Forward-Port-Of: odoo/odoo#280593