This release will be available starting January 04, 2019 and affects several themes.
IMPORTANT: This release is only available for SharePoint Online and CSS-Only Versions.
Fixes
All SharePoint Themes
Addressed an issue where BindTuning themes and web parts were not rendering correctly on classic SharePoint sites following recent updates to SharePoint Online. We strongly recommend updating your theme or applying the latest fix even if you haven't yet experienced this issue, to ensure optimal performance and compatibility. Read more
Inspire Theme
We've fixed a bug where search refiners were not displaying correctly.