Do you think all the "New to Chess bots" have turned hard?

hello everyone . I have a question regarding Adaptive bots, I've been playing these bots for practice since the starting and when I challenge them now I've seen alot of change! 
They've turned harder. Use different tricks. I don't know why, But I've seen a change.
let me know how many of you have seen this change. 

Some of the bots have been slightly changed, but not all of them. If you have saved bot games where you think the bot played a lot stronger, post a link to the game so staff can see if it's one of changed ones or something else.

I see the most change in Jimmy he's turned harder for new ones too!

i don't think so

Hmmm.... I can't be so sure But bots work differently😁

But many people complain too🧐

exactly