'From Squeak3.10beta of 22 July 2007 [latest update: #7139] on 8 August 2007 at 9:53:11 am'! "Reporter: Damien Cassou Summary: 0006586: PositionableStream>>backUpTo: is not tested Description: Attached mcz contains 3 tests for #backUpTo: Additional Information: "! ReleaseBuilderFor3dot10 new updatePackages: 'CollectionsTests-edc.72(71).mcd' !