'From Squeak3.1alpha of 4 February 2001 [latest update: #3710] on 24 February 2001 at 5:48:56 pm'! "Change Set: Retract3678 Date: 24 February 2001 Author: Andreas Raab Retracts CS 3678 in favour of Ned's much more complete zip archive implementation."! Smalltalk removeClassNamed: #ZipFileDirectory! Smalltalk removeClassNamed: #ZipFileEntry! Smalltalk removeClassNamed: #ZipFileEntryWriteStream!