Scrips in RT 4.2.15

Hi Team,
I have recently upgraded my RT version 4.0.5 to 4.2.15. I am now seeing more number of scrips and also duplicate scrips.In the old version there are 28 scrips and in the new version I can see there are around 130 scrips.

Could anyone please guide the why this happened and will the users face any issue in the upgraded version as there are more no of scrips as well as duplicate scrips.