This is a Free upgrade to JSEAsy v4.5 Standard Single User for Single User Rental Customers.
This upgrade applies to standard/ base single user rental version 4.4.1 You may need to first upgrade to v4.4.1 from older versions. This will give upgrade your existing data file
This will upgrade your existing data file and give you all of the new features included in JSEAsy Single User v4.5.3
All of your existing data will remain intact. All of the new features are added to your existing data file when you upgrade to v4.5.3