Should be resolved - but i'm new to this so please let me know if there are still issues. Thanks

Thank you, will sort it out now!

haha, nono, I meant because of all the down voting

Done

Increased the difficulty

I can see why you stopped authoring kata's

Thanks! Now it's been fixed.

sorry this is my first kata

The history list should be a list (and the user function should receive a copy).

Resolved by using tuples instead of list as history input.

Thanks for letting me know! I'll take it down.

deep flatten has been done before, this is a duplicate kata

I can't remove v8 for some reason, but I'm not intending to support it so I've notated that v10+ should be used

fixed in latest fork.