Well, yes. Dennis was a horrible little shit right through to the mid-2010s in some formats. The ‘softies’ were positioned as weak primarily because they liked stereotypical girlie things. Beyond that, there was the casual sexism (ugh: girls).
The change isn’t huge, but it does cleverly shift the entire strip. Dennis is now mischievous and streetwise but not a bully. Walter has been changed into a fun-hating spoilsport, taking after his father, the mayor (and wannabe supervillain). The gang has been updated too. Curly has gone and so Dennis’s gang now comprises himself, Pie Face and two girls, JJ and Rubi (who also have their own strips elsewhere, with Rubi usually getting a page in every issue). His dad has spiked hair (suggesting he’s the original Dennis, something further suggested by his granddad looking like the original Dennis’s father).
It’s not like Nigel Auchterlonie binned everything. The changes are all quite subtle. But they add up to something I’m happy for my daughter to read and that’s significantly more inclusive, without diluting the rebellious edge that has always been at the core of the strip.