difference static field vs. class var

[Kays]

Is there any difference beetween static fields and class variables?

Code: Pascal  [Select][+][-]

1. unit myGreatUnit;
2.  
3. {$mode objfpc}
4.  
5. interface
6.  
7. type
8.         TMyClass = class
9.                 strict private
10.                         // C L A S S
11.                         // attributes
12.                         foo: boolean; static;
13.                         // variables
14.                         class var
15.                                 bar: boolean;
16.         end;
17.  
18. implementation
19.  
20. end.

If so, what's the difference between them?
(Also, since when is {$static on} illegal? My old code uses it.)

EDIT: Never mind, the latest ref says it's equivalent. (I primarily use /usr/share/doc/fp-docs/* which in stable Debian is 2.6.4)