This article details release notes for the Outlook Add-in manifest versions.
Version 3.0
Implemented NAA Authentication and updated Entra ID permissions to support NAA
Version 2.0
Added configuration for SSO authentication in add-in when supported by Microsoft.
Version 1.8
Added support for signature injection in Outlook appointments
Version 1.7
Added support for mobile form factorsInstallation source and version details supplied to diagnostics paneAdded "Supports shared folder" declaration
Version 1.5
Added declaration for "From" event triggers
Version 1.4.0
Added event declaration for appointments
Version 1.3.9
Updated numerous texts and support links
Version 1.3.0
Added support for Task Pane pinning
Version 1.2.0
Increased Minimum Outlook API requirement set to 1.3
Version 1.1.0
Updated internal URL structure of hosted files