The Belgian payroll accounting test data was updated to stay aligned with related payroll changes. This helps ensure automated checks continue to validate 13th month payroll behavior correctly without affecting regular users directly.

Adapt tests and demo data according to changes in community PR https://github.com/odoo/odoo/pull/30562

PDF attachment previews in Odoo Mail no longer display Odoo’s separate download button. This avoids duplicate controls because major browsers already provide a built-in PDF download option, making the preview cleaner for users.

Task 1945059
Since there is a button to download a pdf from the preview of all major browsers, there is no need to add one on the view in odoo