Levente Uzonyi uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-ul.549.mcz

==================== Summary ====================

Name: Kernel-ul.549
Author: ul
Time: 28 February 2011, 12:23:58.143 pm
UUID: 63637401-6781-ce44-99e2-d3ac7f032112
Ancestors: Kernel-dtl.548, Kernel-hsj.547

Merged.

=============== Diff against Kernel-dtl.548 ===============

Item was changed:
  ----- Method: Behavior>>adoptInstance: (in category 'instance creation') -----
  adoptInstance: anInstance
  	"Change the class of anInstance to me.
+ 	Primitive (found in Cog and new VMs)  follows the same rules as primitiveChangeClassTo:, but returns the class rather than the modified instance"
- 	Primitive (only found in Cog) should follow the same rules as described in 	primitiveChangeClassTo:"
  
  	<primitive: 160 error: ec>
+ 	anInstance primitiveChangeClassTo: self basicNew.
+ 	^self!
- 	^anInstance primitiveChangeClassTo: self basicNew.!