This is a compilation of all of the breaking changes pages for AR.Net as of March 2025.
Latest (AR 19) https://developer.mescius.com/activereportsnet/docs/latest/online/breaking-changes.html
AR 18 https://developer.mescius.com/activereportsnet/docs/versions/v18/online/breaking-changes.html
AR 17 https://developer.mescius.com/activereportsnet/docs/versions/v17/online/breaking-changes.html
AR 16 https://developer.mescius.com/activereportsnet/docs/versions/v16/online/breaking-changes.html
AR 15 https://developer.mescius.com/activereportsnet/docs/versions/v15/online/breaking-changes.html
AR 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
Victor Stahlman