This is a compilation of all of the breaking changes pages for AR.Net as of Oct 2024
Latest (AR 17->18) https://developer.mescius.com/activereportsnet/docs/latest/online/breaking-changes.html
AR 16->17 https://developer.mescius.com/activereportsnet/docs/versions/v17/online/breaking-changes.html
AR 15->16 https://developer.mescius.com/activereportsnet/docs/versions/v16/online/breaking-changes.html
AR 14->15 https://developer.mescius.com/activereportsnet/docs/versions/v15/online/breaking-changes.html
AR 13->14 https://developer.mescius.com/activereportsnet/docs/versions/v14/online/breaking-changes.html
AR 13 https://help.grapecity.com/activereports/webhelp/AR13/webframe.html#BreakingChanges.html
AR 12 https://help.grapecity.com/activereports/webhelp/AR12/webframe.html#BreakingChanges.html
AR 11 https://help.grapecity.com/activereports/webhelp/AR11/webframe.html#BreakingChanges.html
AR 10 https://help.grapecity.com/activereports/webhelp/AR10/webframe.html#BreakingChanges.html
AR 9 https://help.grapecity.com/activereports/webhelp/AR9/index.html#BreakingChanges.html
AR 7 and before, go to https://developer.mescius.com/activereportsnet/docs/legacy and select the version.
Then search Breaking Changes