Guidline for old styles vs. new styles?

Is there such a beast?  for instance a table showing the way things where done in 1.1.5, and how they are done now in 1.2.

1.1.5
Oxygen.css
BODY { background-color: #FFFFFF }

in 1.2

Oxygen_cs.css
/* 1.1 Default background colour and text colour */

.pun {COLOR: #333}

DIV.box, .pun BLOCKQUOTE, DIV.codebox, #adminconsole FIELDSET TH, .rowodd, .roweven {BACKGROUND-COLOR: #FFFFFF}
#adminconsole TD, #adminconsole TH {BORDER-COLOR: #F1F1F1}

Of course it would look better in tabular format