for example I have the whole project is in bootstrap 4 but now I want a small component to add with bootstrap 5 to my project how is it possible partially include of bootstrap 5 element

[BijayanandaMohanta]

I have a very old project for some reason I want to use the newer bootstrap classes but when I am using it the entire project getting mess because of class conflict is there any way so, can we add two version at the same time and one is primary and another is secondary which will help for the update things easily of old project as well.

Please help if any one has any idea on it.

I used various approach to find the solution but failed.