Not read a recent version (didn't' read many of them to my children) but I do know that a lot of them have been updated. I believe the racism and sexism edited out - and name changes been made.
But when did this happen? I mean the books I read in the 80s, were they the exact same as when written?
This question is inspired by a conversation with my oldest son - about bigotted attitudes in books - happen to bring the Enid Blyton's Adventure Series - I then read the synopsis on the internet - and it was mentioned about a character in Sea of Adventure and how racist the writing about the character was (description of his looks, and repeated mention of his skin colour) and that this had been edited it now. But it didn't say when these changes had been made.
I don't have any recollection of this character at all so can't remember if it had been changed in the books I read. (Mind you I don't recall much about the book full stop - bar the bit where they accidentally fell into a convenient so large it can fit a human puffin burrow when in need of a place to shelter.)
I suspect the editing happened the 90s - I also bet Peter in the Secret Seven is still a dick and Julian a patronising plonker and the other delightful character traits of the heroes are still there!