This release will be available starting March 4, 2019 and affects several themes.
IMPORTANT: This release is only available for Office 365 Modern Themes.
Improvements
SharePoint Framework (SPFx)
We've made significant improvements to the alignments and spacings within the Mega-menu.
Fixes
SharePoint Framework (SPFx)
We've fixed issues related to user access validation within the BindTuning Theme Settings panel.
When using friendly URL term set navigation, menu items on system pages will now correctly display their associated URLs. This resolves an issue where links were not properly resolving in these contexts.