Before instalition

the doc show that we need to install .net framework 4.6.1 before installing the uipath studio.
But I found that .net framework 4.5.2 also ok?
Is .net framework 4.6.1 is compulsory?
Is there any difference between 4.5.2and 4.6.1?

I imagine there are some functionality of Studio or activity packs that leverage .NET >= 4.6.1. Is there a particular reason you wouldn’t want to install a newer version of .NET Framework?

Can look at the change logs to see what the differences between the various versions are.
https://docs.microsoft.com/en-us/dotnet/framework/whats-new/index