This update streamlines how Odoo creates and sends message notification emails across sales, accounting, purchasing, delivery, HR, CRM, events, projects, and mail. It standardizes notification layouts, removes unnecessary follow/unfollow buttons from emails, and simplifies the underlying process to make future maintenance and customization easier.

Task: https://www.odoo.com/web#id=47934&view_type=form&model=project.task&action=333&active_id=965&menu_id=4720