Replying to myself - but thinking about it further, there is something a little ironic about the result of removing $.browser in that testing for certain behavi

Replying to myself - but thinking about it further, there is something a little ironic about the result of removing $.browser in that testing for certain behaviour can in fact increase code size in libraries. For example testing the rendering behaviour of how scrollbar width is added to containers (simplifying the problem somewhat) is something we know happens in IE6/7, which is a nice easy line of jQuery at the moment, but actually testing for it will introduce more code into libraries which can no longer use these properties. I still don't think it is a bad thing to remove $.browser since it does encourage good code practice, but there is a lovely irony that to decrease code size in jQuery core, plug-ins will likely need to have increase their size.