From the Thomson Reuters Community. link
EndNote X7 Word 2016 for Mac Update Release Notification
As some of you may have seen, the anticipated release date for the EndNote X7.5 Mac update is scheduled for Tuesday, February 2nd. This release will have the following features:
*EndNote and EndNote online Cite While You Write compatibility for Microsoft Word 2016.
* Official El Capitan 10.11 compatibility.
* Sync improvements.
* Additional Bug fixes and stability improvements.
We know Word 2016 support is important for your work and we thank you for your patience while we worked with Apple and Microsoft to develop these tools.
Technical Sup Rep RS
Phone: +1 800-336-4474