Visual updates include the code edit region's width automatically fits the entire window.

Code edit regions automatically display command completion lists.

It is now possible to cursor into and out of code edit regions. Previously the only way to enter a code edit region was using the mouse.

A new console window at the bottom of the code editor makes it possible to test the startup code from directly inside the code editor.

Using maplemint, the code editor gives a greater level of information about programming errors.

The code editor automatically displays command completion lists.

Errors are now shown inline and the code editor displays a notification strip for errors in the scroll bar on the right side of the window.

Automatic text wrapping improves readability.

Menu items were added for cut, copy, paste, undo, and redo.

a:=proc() local b,i;
   b:=6;
   while (b>0) do
      for i from 1 to 6 do
         break;
         printf(`%d`,i);
      end do;
      for i in [1,3,5] do
         lprint(i);
         break;
         lprint(test);
      end do;
      b:=b-1;
   end do;
end proc:

maplemint(a);

Procedure a()
  These names were used as global names but were not declared:  %d, test
  There is unreachable code following a break statement at statement 5:
      printf(%d,i)
  There is unreachable code following a break statement at statement 9:
      lprint(test)

m := module()
    export p1 := proc( x )
       global G;
       x^2;
    end proc:
    export p2 := proc( y )
       local a, b;
       a := b*y;
       b := 42;
       a + b;
    end proc:
    export p3 := proc( z )
       with(LinearAlgebra);
       Determinant(z);
    end proc:
end module:

maplemint(m);

Nested Procedure p1( x ) on lines 1 to 2
  These global variables were declared, but never used:  G
Nested Procedure p2( y ) on lines 3 to 4
  These local variables were used before they were assigned a value:  b
Nested Procedure p3( z ) on lines 5 to 6
  Ineffectual call to with() inside a proc at statement 1: with(LinearAlgebra)