The Website app was migrated to Odoo's newer internal framework, updating controllers, page rendering, configuration, and related tests. This helps keep the website functionality easier to maintain and more consistent with the rest of Odoo, with limited direct change expected for end users.

Task: https://www.odoo.com/web#id=12131&view_type=form&model=project.task&menu_id=3942&action=327
Pad:  https://pad.odoo.com/p/r.eLvFy2wnfbAiJdxS