add some recent releases to the list
diff --git a/LICENSE b/LICENSE
index 3d41e75..69acaeb 100644
--- a/LICENSE
+++ b/LICENSE
@@ -55,7 +55,10 @@
     2.4.4           2.4.3       2006        PSF         yes
     2.5             2.4         2006        PSF         yes
     2.5.1           2.5         2007        PSF         yes
+    2.5.2           2.5.1       2008        PSF         yes
+    2.5.3           2.5.2       2008        PSF         yes
     2.6             2.5         2008        PSF         yes
+    2.6.1           2.6         2008        PSF         yes
 
 Footnotes: