Bert Freudenberg uploaded a new version of Collections to project The Trunk:
http://source.squeak.org/trunk/Collections-bf.505.mcz

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

Name: Collections-bf.505
Author: bf
Time: 4 March 2013, 2:39:40.648 pm
UUID: e14ee10f-5db6-49d0-9b98-e6f3f1aa0403
Ancestors: Collections-nice.504

Put back PositionableStream>>last with a better comment.

=============== Diff against Collections-nice.504 ===============

Item was added:
+ ----- Method: PositionableStream>>last (in category 'accessing') -----
+ last
+ 	"Return the element that was read last"
+ 
+ 	^ collection at: position!