As of VA Smalltalk 9.1, the line endings are auto-detected by nextLine.

However, the access methods lineDelimiter and lineDelimiter: make it possible to read and write Strings with specific semantics for the messages cr and nextLine. The Blue Book method reverseContents was omitted, because it is equivalent to sending contents reverse. The message close is included to support polymorphic programming using CLDT streams and Common File System file streams. Sending close to a CLDT stream has no effect. The message size is not in the Blue Book but the need seems obvious.