'From Squeak3.2alpha of 3 October 2001 [latest update: #4599]
 on 5 January 2002 at 10:16:18 am'!

"Change Set:		ChangedUpdateEnh
Date:			5 January 2002
Author:			Robert Hirschfeld

Extends the changed-update protocol of Squeak to

	Object>>changed
	Object>>changed:
	Object>>changed:with:
	---
	Object>>update:with:from:
	Object>>update:with:
	Object>>update:

NOTE: Object>>changed is left as it was, taking *self* as a default 
parameter for #changed: but should be adjusted to provide *nil* as 
a default instead. For that, all offending senders of #changed and 
#changed: plus their corresponding #update: implementors need to be 
adjusted."!
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