As you will probably know, Google Search has had somewhat of a face lift over the last week.
To say there has been an uproar over the latest update would be a lie, but there are plenty of people (as with any change) that would like to see the old version back. To do so is thankfully straight forward, simply make this your default search page:
How long this will remain available is unknown but it will at least give you a little more time to accept that change is coming. :)