All editions (Cluster, Professional, Composer) of the Intel® Parallel Studio XE 2016 Update 1 for Windows* are now available from the Intel Registration Center. You may also receive an email from Intel about this.
Here is what's new in the Intel® Parallel Studio XE 2016 Update 1 release.
Additional compiler details are available in the Intel® Fortran Compiler 16.0 Release Notes.
There are known issues with updating using the Intel Software Manager for Windows*. Please refer to the article, Intel® Parallel Studio XE 2016 update 1 for Windows* - Issues updating via Intel Software Manager, for details and workarounds.