This recovery release includes a few bug fixes and minor improvements, and resolves various styling and data accuracy issues caused by changes in Office 365.
Bugs fixed
- responsive-with-legacy-navigation.master fall-back was added to allow customers with unusual navigation requirements to bypass 2.6 navigation improvements (2.6.1)
- In some page layouts (e.g. Policy Hub), styling was broken due to changes in how SharePoint parses custom CSS. (2.6.2)
- What's Up Webpart timezone handler was updated due to changes in SharePoint Online API. (2.6.3)