We are excited to announce the first preview of the upcoming SharePoint Framework 1.21. This release will have updates for SharePoint, Viva Connections and Microsoft Teams experiences.
The unified manifest is a key component of the Microsoft 365 ecosystem providing a single model for distributing and managing Teams apps, Outlook add-ins, as well as Copilot agents which work across Microsoft 365 apps.  We've released it for Outlook, and now it is available for Word, PowerPoint, and Excel.