This release will be available starting March 22, 2019 and affects several themes.
IMPORTANT: This release is only available for Office 365 Modern Themes.
Improvements
SharePoint Framework (SPFx)
A new option has been added allowing you to hide the menu entirely.
Mega menus that contain only a single level of navigation now automatically default to displaying as regular sub-menus.
The "Compact Mode" setting has been enhanced and is now split into separate controls for the header and footer.
Fixes
SharePoint Framework (SPFx)
We've addressed an issue where pages would sometimes go blank when viewed on mobile devices.
The BindTuning settings button will no longer appear for users who do not have the necessary permissions, preventing unauthorized access and maintaining proper security.
Corrected the misalignment of the BindTuning settings button.