Looking at the list of updates that have been released for CRM2015 (https://buildnumbers.wordpress.com/crm) , I can see two releases that may contain the latest Outlook client:
1) CRM 2015 Update 0.3
-Released August 21, 2017
-Outlook client v7.0.3.0109
2) CRM 2015 Update 1.2 (Client & router only)
-Released July 18, 2016
-Outlook client v7.1.2.1032
Even though the 0.3 update was released last year in 2017, it contains a lower version number for the Outlook client than the one released in 2016. Any idea which is the latest version we should be installing?
Thank you