Transitioning from Xactimate 28 to Xactimate desktop (X1) (xactware.com)
“On July 31, 2021, support for Xactimate desktop version 28 will no longer be available and end of life for Xactimate desktop version 28 will occur on December 1, 2021.
Even though the software will continue to work through November 2021, we encourage all users to upgrade to Xactimate desktop (X1) before support ends in July.”