Available from the Download section of the Phase One site.

Info on this version from the Release Notes:

Highlights, Capture One 8.2.2

This is a service-release providing bug fixes

Bug fixes

• Fixed a few crashes

• Fixed an issue where Ctrl + Arrow keys did not change selection after using

  the Exposure tool on Windows

• Fixed an issue where Tokens were not displayed correctly on Mac OS 10.10.3

• Fixed some issues when working with AppleScript and Variants

• Fixed 5 OpenCL-related bugs