diff --git a/ChangeLog b/ChangeLog
index c92e524..4e6f61d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-09  Ian Lance Taylor  <iant@golang.org>
 
 	PR go/99458
diff --git a/config/ChangeLog b/config/ChangeLog
index b57be8a..4eccf88 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index b382f97..cfcc8b1 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-19  Matthias Klose  <doko@ubuntu.com>
 
 	Backported from master:
diff --git a/contrib/header-tools/ChangeLog b/contrib/header-tools/ChangeLog
index 8d4bdca..4f7a7a0 100644
--- a/contrib/header-tools/ChangeLog
+++ b/contrib/header-tools/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/contrib/reghunt/ChangeLog b/contrib/reghunt/ChangeLog
index 968f094..c11a895 100644
--- a/contrib/reghunt/ChangeLog
+++ b/contrib/reghunt/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/contrib/regression/ChangeLog b/contrib/regression/ChangeLog
index 51d61b5..ab64ef4 100644
--- a/contrib/regression/ChangeLog
+++ b/contrib/regression/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/fixincludes/ChangeLog b/fixincludes/ChangeLog
index 836001f..61b3038 100644
--- a/fixincludes/ChangeLog
+++ b/fixincludes/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/BASE-VER b/gcc/BASE-VER
index 26ee5b0..0719d81 100644
--- a/gcc/BASE-VER
+++ b/gcc/BASE-VER
@@ -1 +1 @@
-10.2.1
+10.3.0
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c6a6ed4..3b1384e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-04  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 71a876c..86fd883 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-10  Mikael Pettersson  <mikpelinux@gmail.com>
 
 	PR bootstrap/94918
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index fb1d0c5..7e5a85d 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/brig/ChangeLog b/gcc/brig/ChangeLog
index 2b2788c..26730ee 100644
--- a/gcc/brig/ChangeLog
+++ b/gcc/brig/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index d62a29c..b8ef378 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/98481
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 545d705..ecd1741 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-30  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/99588
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 81a887e..b576f9a 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/98481
diff --git a/gcc/d/ChangeLog b/gcc/d/ChangeLog
index ad21ff5..8bc729a 100644
--- a/gcc/d/ChangeLog
+++ b/gcc/d/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-03  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	Backported from master:
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 2f7044c..aa5932b 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-01  Harald Anlauf  <anlauf@gmx.de>
 
 	Backported from master:
diff --git a/gcc/go/ChangeLog b/gcc/go/ChangeLog
index 99d83bf..b8ed04d 100644
--- a/gcc/go/ChangeLog
+++ b/gcc/go/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/jit/ChangeLog b/gcc/jit/ChangeLog
index 9fcad43..a8bc5ce 100644
--- a/gcc/jit/ChangeLog
+++ b/gcc/jit/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 92434a4..e82e407 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-08-13  Jan Hubicka  <jh@suse.cz>
 
 	Backported from master:
diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index 0b7c83b..d73eab4 100644
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-24  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/gcc/objcp/ChangeLog b/gcc/objcp/ChangeLog
index db77853..0b4b3d5 100644
--- a/gcc/objcp/ChangeLog
+++ b/gcc/objcp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gcc/po/ChangeLog b/gcc/po/ChangeLog
index bbb5dff..dd92120 100644
--- a/gcc/po/ChangeLog
+++ b/gcc/po/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-19  Joseph Myers  <joseph@codesourcery.com>
 
 	* de.po: Update.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2fa6413..2913065 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/98481
diff --git a/gnattools/ChangeLog b/gnattools/ChangeLog
index 344ef36..d515440 100644
--- a/gnattools/ChangeLog
+++ b/gnattools/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/gotools/ChangeLog b/gotools/ChangeLog
index afa885e..ace6d79 100644
--- a/gotools/ChangeLog
+++ b/gotools/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/include/ChangeLog b/include/ChangeLog
index 3c28566..d00538e 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/intl/ChangeLog b/intl/ChangeLog
index 5407888..e45e393 100644
--- a/intl/ChangeLog
+++ b/intl/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libada/ChangeLog b/libada/ChangeLog
index e9b66c4..703c233 100644
--- a/libada/ChangeLog
+++ b/libada/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog
index de343a9..3ed347e 100644
--- a/libatomic/ChangeLog
+++ b/libatomic/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index 7482a6c..f72c375 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libcc1/ChangeLog b/libcc1/ChangeLog
index cdcae58..2cbcae0 100644
--- a/libcc1/ChangeLog
+++ b/libcc1/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index b5f1883..0d1120a 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-02-03  Nathan Sidwell  <nathan@acm.org>
 
 	PR preprocessor/95253
diff --git a/libcpp/po/ChangeLog b/libcpp/po/ChangeLog
index 0b7f09b..ed419b5 100644
--- a/libcpp/po/ChangeLog
+++ b/libcpp/po/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-07  Joseph Myers  <joseph@codesourcery.com>
 
 	* es.po: Update.
diff --git a/libdecnumber/ChangeLog b/libdecnumber/ChangeLog
index 677b5ff..c9b960b 100644
--- a/libdecnumber/ChangeLog
+++ b/libdecnumber/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index 6f0a25f..6832b11 100644
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 263c2e0..1f9de3d 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-31  Jan Hubicka  <jh@suse.cz>
 
 	* config/i386/cpuinfo.c (get_amd_cpu): Support amdfam19.
diff --git a/libgcc/config/avr/libf7/ChangeLog b/libgcc/config/avr/libf7/ChangeLog
index 23284d7..ba85e15 100644
--- a/libgcc/config/avr/libf7/ChangeLog
+++ b/libgcc/config/avr/libf7/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libgcc/config/libbid/ChangeLog b/libgcc/config/libbid/ChangeLog
index ad4a23d..5ff91cc 100644
--- a/libgcc/config/libbid/ChangeLog
+++ b/libgcc/config/libbid/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index e842037..2282350 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-06  Harald Anlauf  <anlauf@gmx.de>
 
 	Backported from master:
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 82dd534..f76d32e3 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-03-25  Thomas Schwinge  <thomas@codesourcery.com>
 
 	Backported from master:
diff --git a/libhsail-rt/ChangeLog b/libhsail-rt/ChangeLog
index ec80eb3..188e556 100644
--- a/libhsail-rt/ChangeLog
+++ b/libhsail-rt/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index dd095d7..fda0f35 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-10-07  Martin Liska  <mliska@suse.cz>
 
 	Backported from master:
diff --git a/libitm/ChangeLog b/libitm/ChangeLog
index de5ae42..97ead08 100644
--- a/libitm/ChangeLog
+++ b/libitm/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libobjc/ChangeLog b/libobjc/ChangeLog
index 8fc2669..e6b290b 100644
--- a/libobjc/ChangeLog
+++ b/libobjc/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/liboffloadmic/ChangeLog b/liboffloadmic/ChangeLog
index 561f360..ce49827 100644
--- a/liboffloadmic/ChangeLog
+++ b/liboffloadmic/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/libphobos/ChangeLog b/libphobos/ChangeLog
index 5edfc4e..053809c 100644
--- a/libphobos/ChangeLog
+++ b/libphobos/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-24  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	Backported from master:
diff --git a/libquadmath/ChangeLog b/libquadmath/ChangeLog
index 123f802..6e4c3e5 100644
--- a/libquadmath/ChangeLog
+++ b/libquadmath/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index ae982c4..ceea82c 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libssp/ChangeLog b/libssp/ChangeLog
index c9bb84d..b917704 100644
--- a/libssp/ChangeLog
+++ b/libssp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 67d8235..fdd63cb 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-04-01  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master:
diff --git a/libvtv/ChangeLog b/libvtv/ChangeLog
index ec712b5..49e9bae 100644
--- a/libvtv/ChangeLog
+++ b/libvtv/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>
 
diff --git a/lto-plugin/ChangeLog b/lto-plugin/ChangeLog
index 223f235..d20c491 100644
--- a/lto-plugin/ChangeLog
+++ b/lto-plugin/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-09-09  Nick Clifton  <nickc@redhat.com>
 
 	* lto-plugin.c (struct plugin_symtab): Add last_sym field.
diff --git a/maintainer-scripts/ChangeLog b/maintainer-scripts/ChangeLog
index b525220..2be2331 100644
--- a/maintainer-scripts/ChangeLog
+++ b/maintainer-scripts/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2020-07-23  Release Manager
 
 	* GCC 10.2.0 released.
diff --git a/zlib/ChangeLog b/zlib/ChangeLog
index 8b9762a..6a7f7f4 100644
--- a/zlib/ChangeLog
+++ b/zlib/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-08  Release Manager
+
+	* GCC 10.3.0 released.
+
 2021-01-03  Iain Sandoe  <iain@sandoe.co.uk>
 	    Jakub Jelinek   <jakub@redhat.com>