--- a/emacs.rst	Sun Aug 01 16:41:40 2010 +0300
+++ b/emacs.rst	Sun Aug 01 16:53:38 2010 +0300
@@ -103,10 +103,17 @@
 
 Check such variable:
 
+  emacs-major-version
+  emacs-minor-version
   window-system - 'nil' if in terminal, 'w32' if native Windows build, 'x' if under X Window.
   window-system-version
-  emacs-major-version
-  emacs-minor-version
+  operating-system-release
+  system-configuration - like configuration triplet: cpu-manufacturer-os
+  system-name
+  system-time-locale
+  system-type
+  system-uses-terminfo
+  window-size-fixed
 
 Run such checks: