Ajax callbacks have been changed to something along these lines:

s.success.call( callbackContext, data, status, xhr );

where callbackContext can be defined with a new "context" property of the ajax options.

In general, this is great. However, if a context is not specified, it defaults to window. In 1.3 the context of an ajax callback was the options object itself. It is documented like this:

=

function (data, textStatus) {

data could be xmlDoc, jsonObj, html, text, etc...

this; the options for this ajax request

}

=

This is likely to break a lot of existing code. Perhaps defaulting the callbackContext to the options object would be better.

Cheers

Ivan