Thank you, Ms. Sims. I will answer in French.
The amendments made to the Canada Labour Code aim to protect the jobs of individuals who are on leave and are receiving benefits. As far as I understand, the required four weeks' notice for compassionate care leave comes under that.
If a federal public servant takes compassionate leave only, they do not need to give notice. However, if someone decides to take compassionate care leave and interrupts it to go on sick leave, they will be asked to let their employer know as soon as possible, so that the employer would be aware of their absence and of the fact that their leave status is changing.
It's important to understand that this measure has to do with employee-employer relations. The goal of the notice is to help the employer better manage their company and plan for absences.