Levente Uzonyi uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-ul.1099.mcz

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

Name: Kernel-ul.1099
Author: ul
Time: 25 April 2017, 6:40:04.569495 pm
UUID: d06b7b82-b7b0-4896-ab30-7a5f85de7427
Ancestors: Kernel-ul.1098

- deprecated Object >> #clone
- removed #clone from subclasses

=============== Diff against Kernel-ul.1098 ===============

Item was removed:
- ----- Method: Boolean>>clone (in category 'copying') -----
- clone 
- 	"Receiver has two concrete subclasses, True and False.
- 	Only one instance of each should be made, so return self."!

Item was removed:
- ----- Method: Object>>clone (in category 'copying') -----
- clone
- 	"Answer a shallow copy of the receiver."
- 	<primitive: 148 error: ec>
- 	| class newObject |
- 	ec == #'insufficient object memory' ifFalse:
- 		[^self primitiveFailed].
- 	"If the primitive fails due to insufficient memory, instantiate via basicNew: to invoke
- 	 the garbage collector before retrying, and use copyFrom: to copy state."
- 	newObject := (class := self class) isVariable
- 					ifTrue: 
- 						[class isCompiledMethodClass
- 							ifTrue:
- 								[class newMethod: self basicSize - self initialPC + 1 header: self header]
- 							ifFalse:
- 								[class basicNew: self basicSize]]
- 					ifFalse:
- 						[class basicNew].
- 	^newObject copyFrom: self!

Item was removed:
- ----- Method: SmallFloat64>>clone (in category 'copying') -----
- clone
- 	"Answer the receiver, because SmallFloat64s are unique."
- 	^self!

Item was removed:
- ----- Method: SmallInteger>>clone (in category 'copying') -----
- clone
- 	"Answer the receiver, because SmallIntegers are unique."
- 	^self!

Item was removed:
- ----- Method: UndefinedObject>>clone (in category 'copying') -----
- clone
- 	"Only one instance of UndefinedObject should ever be made, so answer 
- 	with self."!