Difference between saiki and saiki reawakened?

Have looked at the series of saiki (3 season long) on netflix and now there's also the saiki reawakened which includes 6 episodes. Is that the continuation or how?

Unadapted chapters that have now been animated.

After that, the manga was completely implemented as an anime. There's nothing more to come.

So there are new episodes that had nothing to do with the old series or how?

As written, they are not adapted chapters. These play during the two seasons.