Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours:

http://lists.squeakfoundation.org/pipermail/packages/2010-February/002729.html

Name: System-dtl.255
Ancestors: System-dtl.254

Update SystemDictionary>>discardMVC to perform complete MVC removal. MVC may be reinstalled by loading packages ST80 and ToolBuilder-MVC.

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http://lists.squeakfoundation.org/pipermail/packages/2010-February/002730.html

Name: System-ar.256
Ancestors: System-dtl.255

Update unloadAllKnownPackages to  include MVC removal.

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http://lists.squeakfoundation.org/pipermail/packages/2010-February/002731.html

Name: Kernel-nice.402
Ancestors: Kernel-ar.401

Naive implementation of Integer>>bitAt:put:

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