#6367 v8 Migration throws error on old related link

#6328 Help Drawer - Hide "Tours" heading if there are no tours

#6314 V8: Don't show Nested Content delete confirmation if an item can't be deleted

#6310 V8: Added "double" check for the decimal label

#6308 V8: Fix `aria-required` for textbox properties

#6307 V8: Make integer properties work with mandatory validation clientside

#6306 V8: Make decimal properties work with mandatory validation clientside

#6302 v8: umbCheckbox and umbRadiobutton fixes

#6296 V8: Make Multi URL Picker mandatory validation work clientside

#6295 V8: Make sure the validation error help is visible for Multi URL Picker

#6287 V8: Sections tray dropdown uses old colours

#6280 V8: Migration fails if the superuser has notifications

#6270 V8: Mandatory Multinode treepicker, when save & publish with no data, old data is removed

#6268 v8: Fix missing checkmark selection in section picker

#6255 v8: UmbracoMapper forgets maps

#6035 Multiple Media Picker property editor does not have sortable items

#6021 [Umbraco 8.1.1] Error on save and publish for existing node after content creation in eventhandler

#5857 v8: Media picker doesn't show preview of svg

#5813 v8: Add space between label and value in grid layout

#5801 Remove last casting to LuceneIndex

#5762 V8: Mandatory check-box list isn't validated

#5761 V8: Mandatory colour picker can't be saved

#5724 Unable to add multiple property groups in membertype/doctype editor

#4678 v8: Old password is not highlighted in validation