It looks like we won't get an answer from the U.S. Supreme Court in the Microsoft privacy case. For the Data + Privacy Security Insider at Robinson + Cole, Kathleen Porter and Connor Duffy report that the Government and Microsoft agree that the case was mooted by the CLOUD Act, signed into law in March as part of omnibus spending legislation.
The CLOUD Act gives the Government the authority to compel Microsoft to produce the sought-after data, whether stored at home or abroad, and the Government already has attained a warrant under the new law. Microsoft's reported statement indicates that the company's position was exonerated insofar as it maintained that the legislature was the appropriate branch of government in which to resolve the matter.
I wrote about Microsoft and the pending Carpenter case for the winter 2017 newsletter of the Privacy, Cybersecurity & Digital Rights Committee of the ABA Section of International Law (published just last month, March 2018).