--- MITgcm/doc/tag-index	1999/03/22 17:40:01	1.19
+++ MITgcm/doc/tag-index	1999/05/18 15:43:59	1.20
@@ -1,8 +1,14 @@
-$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.19 1999/03/22 17:40:01 adcroft Exp $
+$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.20 1999/05/18 15:43:59 adcroft Exp $
 
     Notes on tags used in MITgcmUV
     ==============================
 
+checkpoint21
+ o Introduced new I/O package that supports direct-access records (mdsio.F)
+ o Split-up mid-level I/O routines
+ o Updated input data for experiments 0,1,2,4 and 5
+ o Finally removed the genmake.* scripts (everyone seems happy with genmake)
+
 checkpoint20
  o Tidied up open-boundaries some more
  o Added non-hydrostatic code