The Belgian payroll setup now stores the fiscal voluntarism rate on the employee record instead of each contract. This makes the rate easier to manage consistently when an employee has contract changes, reducing duplicate updates and improving payroll data reliability.

This will move the fiscal voluntarism rate from the contract to the employee.

Task: 3877405

Administrators can now set default follower subscription preferences from the activity wizard. These defaults apply to new followers and new records for the same model, helping teams keep future notifications consistent without changing existing records.

From the activity wizard: "Default subscription"
    1. "Edit default subscription" as action, after "Add follower";
    2. Should be available with admin rights for the model;
    3. This default subscription should apply to all new followers,
        not existing ones;
    4. This default subscription should apply to all records of the same
        model;
    5. Need a pop-up to confirm the action;
From the activity wizard:
    1. Toggle to apply the selection to all records of the same model;
    2. Should be applied to new records only, not existing ones;

task-3954970

The report editor in Odoo Studio is adjusted so newly created reports can accept content and layout blocks more reliably. It also avoids duplicating embedded report content, reducing editing issues and unexpected output for users building reports.