Well, some of important stuff just removed in JQuery **1.9.1**!!! That makes so much functions on my site to not work. I want to decide to continue using the old version of JQuery (in this case **1.7.2**).
What do you think? Whether this will have bad impact for the future of the browsers? —for example, if the browser remove some native functions which was implemented in the later of the JQuery core.
I would definitely go ahead and update to 1.9. It’s going to be more efficient and you don’t want to be left behind when new features come out. You’re likely using things like `live()` and `.browser()`: