This update reorganizes how Odoo posts messages and sends notifications across apps such as CRM, HR, Project, Portal, Website, and Discuss. It should make messaging behavior easier to maintain and extend, with little direct change expected for end users.

Task: https://www.odoo.com/web#id=54755&view_type=form&model=project.task&action=333&active_id=965&menu_id=4720