You can get the latest information for each GA version of Yealink Microsoft Teams phone by following the below links.

T5 series, MP series, and CP960:

http://support.yealink.com/documentFront/forwardToDocumentDetailPage?documentId=343

VP59:

http://support.yealink.com/documentFront/forwardToDocumentDetailPage?documentId=304

Teams-VP59 , Teams-MP56 , Teams-MP54 , Teams-CP960 , Teams-T58A , Teams-T56A , Teams-T55A , Teams-CP900 , Teams-CP700