No specific info about version 4.1. Please visit the main page of Migration Assistant on Mac Informer.
Info updated on:
Migrate information to a Mac running OS X Mavericks.
Migrate data from a Mac running Leopard to a new Mac running Lion.
Solves an issue that prevents the transfer of data from Leopard to Lion.
Helps you migrate data from a Windows PC running Windows XP, Windows Vista, or Windows 7.
Updated for Mac OS X Snow Leopard to migrate to Lion.