diff --git a/ChangeLog b/ChangeLog
index 6f8e527..d362de7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,16 @@
+2013-03-14  Niibe Yutaka  <gniibe@fsij.org>
+
+	* Version 1.0.3.
+	* src/usb_desc.c (gnukStringSerial): Updated.
+
+	* tool/stlinkv2.py (stlinkv2.start): Call write_debug_reg to run
+	the core again.
+
 2013-03-13  Niibe Yutaka  <gniibe@fsij.org>
 
 	* ChibiOS_2.0.8/os/ports/GCC/ARMCMx/cmsis/core_cm3.c (__STREXB)
 	(__STREXH, __STREXW): Specify R2 to avoid %0 and %2 will be same
-	register.  This is for newer binutils (>= 2.22).
+	register.  This is for newer GNU binutils (>= 2.22).
 
 2013-03-12  Niibe Yutaka  <gniibe@fsij.org>
 
diff --git a/NEWS b/NEWS
index d0f2b4b..86648e3 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,23 @@
 Gnuk NEWS - User visible changes
 
+* Major changes in Gnuk 1.0.3
+
+  Released 2013-03-14, by NIIBE Yutaka
+
+** Relocatable reGNUal
+The upgrade helper, reGNUal, is now relocatable (other than the first
+vector table).  It runs well when loaded at different address.  This
+makes the upgrade procedure more stable.
+
+** Compilation by newer GNU Toolchain
+Now, Gnuk can be compiled with newer GNU Toolchain, specifically GCC
+4.7.x and GNU Binutils 2.22.  Old versions of Gnuk had problem for
+ChibiOS_2.0.8/os/ports/GCC/ARMCMx/cmsis/core_cm3.c, which was fixed.
+
+** Data object 0x0073
+Data object 0x0073 is now available.
+
+
 * Major changes in Gnuk 1.0.2
 
   Released 2013-02-15, by NIIBE Yutaka
@@ -36,6 +54,10 @@ Now, VERIFY command accepts empty data and returns remaining trial
 counts, or 0x9000 (OK) when it's already authenticated.  This is
 useful for application to synchronize card's authentication status.
 
+** Extended Capabilities
+Since Gnuk supports GET CHALLENGE command, the flag for GET CHALLENGE
+in extended capabilities are now on.
+
 
 * Major changes in Gnuk 1.0.1
 
diff --git a/README b/README
index ce7a511..6020da3 100644
--- a/README
+++ b/README
@@ -1,7 +1,7 @@
 Gnuk - An Implementation of USB Cryptographic Token for GnuPG
 
-							  Version 1.0.2
-							     2013-02-15
+							  Version 1.0.3
+							     2013-03-14
 							   Niibe Yutaka
 				      Free Software Initiative of Japan
 
@@ -108,14 +108,19 @@ Ab: That's because gnome-keyring-daemon interferes GnuPG.  Type:
     "GPG Password Agent" and "SSH Key Agent".
 
 Qc: Do you know a good SWD debugger to connect FST-01 or something?
-Ac: ST-Link/V2 is cheap one.  We have a tool/stlinkv2.py as flash ROM
-    writer program.
+
+Ac: ST-Link/V2 is cheap one and works, although it's not very good
+    (for example, we have not yet been able to use OpenOCD to write
+    option bytes of STM32F103).  We have a tool/stlinkv2.py as a flash
+    ROM writer program.  Note that some "Discovery Kit" from ST has
+    the feature of ST-Link/V2, but it is not as stable as the real
+    one.
 
 
 Release notes
 =============
 
-This is a second minor release in version 1.0 series of Gnuk.
+This is a third minor release in version 1.0 series of Gnuk.
 
 While it is daily use for a year and a half, some newly introduced
 features (including key generation and firmware upgrade) should be
@@ -174,7 +179,7 @@ disable read from flash.  For real use, please consider killing DfuSe
 and enabling read protection using JTAG debugger.
 
 I think that it could run on Olimex STM32-P103, or other boards with
-STM32F103.  Besides, we are porting it to STM32 Primer 2.
+STM32F103.  Besides, we did an experiment with STM32 Primer 2.
 
 For PIN-pad support, I connect a consumer IR receive module to STBee
 Mini and STM8S Discovery Kit, and use controller for TV.  PIN
@@ -338,8 +343,7 @@ Recently, there is "gcc-arm-embedded" project.  See:
 
     https://launchpad.net/gcc-arm-embedded/
 
-It is based on GCC 4.6.   For version 4.6-2012-q2-update, you'd
-need "-O3 -Os" instead of "-O2" and it will be slightly better.
+It is based on GCC 4.6 or 4.7.
 
 
 Change directory to `src':
@@ -657,7 +661,8 @@ linux/Documentation/usb/usbmon.txt
 Firmware update
 ===============
 
-See doc/note/firmware-update.
+See doc/note/firmware-update.  Note that this is an experimental
+feature.
 
 
 Git Repositories
diff --git a/src/usb_desc.c b/src/usb_desc.c
index 482f9b5..fc06934 100644
--- a/src/usb_desc.c
+++ b/src/usb_desc.c
@@ -272,9 +272,9 @@ static const uint8_t gnukStringLangID[] = {
 const uint8_t gnukStringSerial[] = {
   19*2+2,			/* bLength */
   USB_STRING_DESCRIPTOR_TYPE,	/* bDescriptorType */
-  /* FSIJ-1.0.1- */
+  /* FSIJ-1.0.3- */
   'F', 0, 'S', 0, 'I', 0, 'J', 0, '-', 0,
-  '1', 0, '.', 0, '0', 0, '.', 0, '2', 0, /* Version number of Gnuk */
+  '1', 0, '.', 0, '0', 0, '.', 0, '3', 0, /* Version number of Gnuk */
   '-', 0,
   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,