[jQuery] change in jQuery.grep in 1.2.3?

[jody]

Using the following method no longer works in version 1.2.3 (stealing
examples from documentation):

arr = jQuery.grep(arr, "a != 9");

Debugging was showing an undefined function using the above method.
Rolling back to 1.2.2, all works fine with the above. Anticipating
using the new ui.jQuery package, I've modified my code to use a
version of this method which works with 1.2.3:

arr = jQuery.grep(arr, function(n, i){
      return (n != 5 && i > 4);
    });

Was dropping the first method intentional for this jQuery release?

-jody