What functionality will I lose downgrading jQuery from 2.0 to 1.10?

Question

We are implementing a new website that will be used alongside an existing system. The current system uses IE8 but in setting up the new site, jQuery2.0 has been used.

If we downgrade jQuery to 1.10, will we lose any of the functionality?

The blog (http://blog.jquery.com/2013/07/03/jquery-1-10-2-and-2-0-3-released/) isn't very clear.

Is this going to be a complex job to downgrade?

Answer 1

No.

jQuery 1.9+ and 2.0+ are the same for newer browsers. The difference between 1.9x and up (including 1.10) and 2.0 and up is the 2.0+ branch gets rid of the extra code that provides support for legacy browsers. For newer browsers, you shouldn't see any difference (except possibly a faster jQuery because of its smaller size.)