'From Squeak3.10alpha of 13 July 2007 [latest update: #7126] on 20 July 2007 at 8:12:11 am'! "Reporter: Damien Cassou Summary: 0006504: MappedCollection is a strange and unneeded class Description: MappedCollection is not used at all in the class, not really commented. Attached change set removes the class. Additional Information: "! "To follow this see http://bugs.squeak.org/view.php?id= 6504" ReleaseBuilderFor3dot10 new updatePackages: 'Collections-edc.88(87).mcd' !