Migrating from Version 5.5 This part addresses concerns for all existing users of VisualAge Smalltalk V5.5 who are migrating to the current release of VA Smalltalk current release of VA Smalltalk. Before you beginning the migration steps in this chapter, make sure you have completed the pre-migration steps in Preparing for Migration. After you complete any needed migration steps mentioned in this chapter, you should continue to the subsequent chapters of this document to review further migration requirements. The topics covered in this chapter include the following: • Elimination of required map links in configuration maps • Low-level configuration map reorganization • Time class shape changed • Default XML serialization methods added for Date and Time • Changed behavior of millisecondClockValue on OS/390 • Behavior change in handling negative system time • Behavior change in creating FileStreams • Packager 'do not reduce' rule behavior changed • EMSRV startup parameter changes • SST HTTP Servlet API • POSIX Migration on OS/390 • Behavior changes for Application Builder parts