2.2.1

Low impact code tidy up.
Low-key SemVer break in that the parent class of the Controller Extension was changed from DataExtension to Extension (as it should have always been). This makes the release a technical major - but is downplayed to a patch in that the methods added by DataExtension have no impact on a controller - they are for and do nothing, unless applied to a DataObject.

2.2.0 - Silverstripe CMS 5 compatibility

Updated depdendencies, ran Prettier. I.e. a general tidy-up.

2.1.0 - PHP 8 support

Along with some module maintenance & dev support features.