diff --git a/README.txt b/README.txt
index 18a2a49d70..e7527fd504 100644
--- a/README.txt
+++ b/README.txt
@@ -1,4 +1,4 @@
-HDF5 version 1.7.20 currently under development
+HDF5 version 1.7.21 currently under development
 Please refer to the release_docs/INSTALL file for installation instructions.
 ------------------------------------------------------------------------------
 
diff --git a/configure b/configure
index e56e7163b6..74de21e1e3 100755
--- a/configure
+++ b/configure
@@ -1,7 +1,7 @@
 #! /bin/sh
 # From configure.in Id: configure.in.
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.53 for HDF5 1.7.20.
+# Generated by GNU Autoconf 2.53 for HDF5 1.7.21.
 #
 # Report bugs to <hdfhelp@ncsa.uiuc.edu>.
 #
@@ -416,8 +416,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='HDF5'
 PACKAGE_TARNAME='hdf5'
-PACKAGE_VERSION='1.7.20'
-PACKAGE_STRING='HDF5 1.7.20'
+PACKAGE_VERSION='1.7.21'
+PACKAGE_STRING='HDF5 1.7.21'
 PACKAGE_BUGREPORT='hdfhelp@ncsa.uiuc.edu'
 
 ac_unique_file="src/H5.c"
@@ -935,7 +935,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures HDF5 1.7.20 to adapt to many kinds of systems.
+\`configure' configures HDF5 1.7.21 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -996,7 +996,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of HDF5 1.7.20:";;
+     short | recursive ) echo "Configuration of HDF5 1.7.21:";;
    esac
   cat <<\_ACEOF
 
@@ -1144,7 +1144,7 @@ fi
 test -n "$ac_init_help" && exit 0
 if $ac_init_version; then
   cat <<\_ACEOF
-HDF5 configure 1.7.20
+HDF5 configure 1.7.21
 generated by GNU Autoconf 2.53
 
 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
@@ -1159,7 +1159,7 @@ cat >&5 <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by HDF5 $as_me 1.7.20, which was
+It was created by HDF5 $as_me 1.7.21, which was
 generated by GNU Autoconf 2.53.  Invocation command line was
 
   $ $0 $@
@@ -33758,7 +33758,7 @@ _ASBOX
 } >&5
 cat >&5 <<_CSEOF
 
-This file was extended by HDF5 $as_me 1.7.20, which was
+This file was extended by HDF5 $as_me 1.7.21, which was
 generated by GNU Autoconf 2.53.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -33820,7 +33820,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<_ACEOF
 ac_cs_version="\\
-HDF5 config.status 1.7.20
+HDF5 config.status 1.7.21
 configured by $0, generated by GNU Autoconf 2.53,
   with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.in b/configure.in
index 9f823c1c47..574df9b53c 100644
--- a/configure.in
+++ b/configure.in
@@ -25,7 +25,7 @@ dnl
 dnl NOTE: Don't forget to change the version number here when we do a
 dnl release!!!
 dnl
-AC_INIT([HDF5], [1.7.20], [hdfhelp@ncsa.uiuc.edu])
+AC_INIT([HDF5], [1.7.21], [hdfhelp@ncsa.uiuc.edu])
 AC_CONFIG_SRCDIR([src/H5.c])
 AC_CONFIG_HEADER([src/H5config.h])
 
diff --git a/doc/html/ADGuide/RELEASE.txt b/doc/html/ADGuide/RELEASE.txt
index 15a0a3165d..45713e2d60 100644
--- a/doc/html/ADGuide/RELEASE.txt
+++ b/doc/html/ADGuide/RELEASE.txt
@@ -1,4 +1,4 @@
-HDF5 version 1.7.19-fph5_alpha0 released on Fri Feb 27 05:35:13 CST 2004
+HDF5 version 1.7.20 released on Wed Mar 17 08:15:57 CST 2004
 ================================================================================
 
 
@@ -42,6 +42,8 @@ New Features
 
     Library:
     --------
+        - Data type conversion(software) from integer to float was added.
+          SLU - 2004/3/13 
         - Data type conversion(software) from float to integer was added.
           Conversion from integer to float will be added later.  SLU -2004/2/4
         - Added new H5Premove_filter routine to remove I/O pipeline filters
@@ -109,6 +111,8 @@ Bug Fixes since HDF5-1.6.0 release
 
     Library
     -------
+        - Fixed problem with fletcher32 filter when converting data of different
+	    endianess. PVN 2004/03/10
         - Fixed problem with H5Tget_native_type() not handling opaque fields
             correctly.  QAK - 2004/01/31
         - Fixed several errors in B-tree deletion code which could cause a
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index f9a12a0697..9710a0f135 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -1,4 +1,4 @@
-HDF5 version 1.7.20 currently under development
+HDF5 version 1.7.21 currently under development
 ================================================================================
 
 
diff --git a/src/H5public.h b/src/H5public.h
index 5c56017940..fb99267ba5 100644
--- a/src/H5public.h
+++ b/src/H5public.h
@@ -75,10 +75,10 @@ extern "C" {
 /* Version numbers */
 #define H5_VERS_MAJOR	1	/* For major interface/format changes  	     */
 #define H5_VERS_MINOR	7	/* For minor interface/format changes  	     */
-#define H5_VERS_RELEASE	20	/* For tweaks, bug-fixes, or development     */
+#define H5_VERS_RELEASE	21	/* For tweaks, bug-fixes, or development     */
 #define H5_VERS_SUBRELEASE ""	/* For pre-releases like snap0       */
 				/* Empty string for real releases.           */
-#define H5_VERS_INFO    "HDF5 library version: 1.7.20"      /* Full version string */
+#define H5_VERS_INFO    "HDF5 library version: 1.7.21"      /* Full version string */
 
 #define H5check()	H5check_version(H5_VERS_MAJOR,H5_VERS_MINOR,	      \
 				        H5_VERS_RELEASE)