Use the Maple V Release 4 updtsrc utility to convert Release 3 source code to Release 4. The layout of Maple windows has changed. You can have multiple worksheets open simultaneously. By default, the worksheets share variables, meaning that modifying the value of the variable X in one worksheet modifies the value of X in the other open worksheets.
Plots now appear in-line by default.
A worksheet can contain expandable sections and subsections that you can use to display or hide details. The help system has been modified. Release 4 of Maple V will become the default on Friday, June 27, and you will no longer have to set it up. You will still be able to access the current version of Maple, Version 3, until early this September by entering the command setup maple-old from a UNIX prompt before running the program.