Hi David Cleland,
Thank you for your interest in Syncfusion products.
Recently we have released our latest version 10.4.0.53 which includes some Major improvements like Performance issue fixes, some Features. We can view the version wise changes using Release notes link in the following online link.
Online link : http://www.syncfusion.com/downloads/version-history
Still if you have more queries, you can create an incident using Direct Trac by logging in with your account details.
Direct Trac : https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidents
Please let us know if you require any further clarifications.
Regards,
Mahajothi.