diff --git a/ChangeLog b/ChangeLog
index cd69a66..8026892 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-29  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* Makefile.def: Add dsymutil defs.
diff --git a/config/ChangeLog b/config/ChangeLog
index b78ba4e..6513881 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-29  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 1fa9549..abf6748 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-01-27  Martin Liska  <mliska@suse.cz>
 
 	* gcc-git-customization.sh: Sync from master.
diff --git a/contrib/header-tools/ChangeLog b/contrib/header-tools/ChangeLog
index 4f7a7a0..89b9163 100644
--- a/contrib/header-tools/ChangeLog
+++ b/contrib/header-tools/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/contrib/reghunt/ChangeLog b/contrib/reghunt/ChangeLog
index c11a895..1177193 100644
--- a/contrib/reghunt/ChangeLog
+++ b/contrib/reghunt/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/contrib/regression/ChangeLog b/contrib/regression/ChangeLog
index ab64ef4..180be58 100644
--- a/contrib/regression/ChangeLog
+++ b/contrib/regression/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/fixincludes/ChangeLog b/fixincludes/ChangeLog
index 61b3038..a36b6b7 100644
--- a/fixincludes/ChangeLog
+++ b/fixincludes/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/BASE-VER b/gcc/BASE-VER
index a936832..816c071 100644
--- a/gcc/BASE-VER
+++ b/gcc/BASE-VER
@@ -1 +1 @@
-10.3.1
+10.4.0
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3e3f7d5..1cfbda8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-24  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	Backported from master:
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 2f1d6b5..d84839d 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-04-21  Richard Biener  <rguenther@suse.de>
 
 	Backported from master:
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index 7e5a85d..02f7c76 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/brig/ChangeLog b/gcc/brig/ChangeLog
index 26730ee..3800d63 100644
--- a/gcc/brig/ChangeLog
+++ b/gcc/brig/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index a2a9236f..18ee28e 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-31  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* c-opts.c (c_common_post_options): Default to
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 2dcabf0..47eb405 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-10  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 4416161..e524d76 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-25  Jason Merrill  <jason@redhat.com>
 
 	PR c++/102307
diff --git a/gcc/d/ChangeLog b/gcc/d/ChangeLog
index 8300c25..fcbe06a 100644
--- a/gcc/d/ChangeLog
+++ b/gcc/d/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-15  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	Backported from master:
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 460f328..8edae93 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-16  Harald Anlauf  <anlauf@gmx.de>
 
 	Backported from master:
diff --git a/gcc/go/ChangeLog b/gcc/go/ChangeLog
index b8ed04d..94bbfa1 100644
--- a/gcc/go/ChangeLog
+++ b/gcc/go/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/jit/ChangeLog b/gcc/jit/ChangeLog
index c3009c0..bb6aea1 100644
--- a/gcc/jit/ChangeLog
+++ b/gcc/jit/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-09  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index e82e407..26f23cd 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index 20515df..7db71c0 100644
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-31  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/gcc/objcp/ChangeLog b/gcc/objcp/ChangeLog
index 0b4b3d5..a366380 100644
--- a/gcc/objcp/ChangeLog
+++ b/gcc/objcp/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/po/ChangeLog b/gcc/po/ChangeLog
index dd92120..579aeb5 100644
--- a/gcc/po/ChangeLog
+++ b/gcc/po/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index fc092b2..a032b35 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-20  Uros Bizjak  <ubizjak@gmail.com>
 
 	Backported from master:
diff --git a/gnattools/ChangeLog b/gnattools/ChangeLog
index d515440..1011579 100644
--- a/gnattools/ChangeLog
+++ b/gnattools/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/gotools/ChangeLog b/gotools/ChangeLog
index ace6d79..36e1319 100644
--- a/gotools/ChangeLog
+++ b/gotools/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/include/ChangeLog b/include/ChangeLog
index d00538e..22c339d 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/intl/ChangeLog b/intl/ChangeLog
index 3c50c7b..9251642 100644
--- a/intl/ChangeLog
+++ b/intl/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-20  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libada/ChangeLog b/libada/ChangeLog
index 703c233..4d71e10 100644
--- a/libada/ChangeLog
+++ b/libada/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog
index 3ed347e..430a9e8 100644
--- a/libatomic/ChangeLog
+++ b/libatomic/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index f72c375..5667e71 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libcc1/ChangeLog b/libcc1/ChangeLog
index 9b54522..3b9bf2a 100644
--- a/libcc1/ChangeLog
+++ b/libcc1/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-29  Iain Sandoe  <iainsandoe@Apollo-1-leo.local>
 
 	* Makefile.am: Switch mdynamic-no-pic to fPIC.
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 4098b84..9a17c78 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-15  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libcpp/po/ChangeLog b/libcpp/po/ChangeLog
index ed419b5..bbde9e2 100644
--- a/libcpp/po/ChangeLog
+++ b/libcpp/po/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libdecnumber/ChangeLog b/libdecnumber/ChangeLog
index c9b960b..d0f67c5 100644
--- a/libdecnumber/ChangeLog
+++ b/libdecnumber/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index 7e4dfe5..ae5652d 100644
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-10  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index b745287..a49027e 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-29  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* config.host: Add weak emutls crt to the extra_parts.
diff --git a/libgcc/config/avr/libf7/ChangeLog b/libgcc/config/avr/libf7/ChangeLog
index ba85e15..7d85d86 100644
--- a/libgcc/config/avr/libf7/ChangeLog
+++ b/libgcc/config/avr/libf7/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libgcc/config/libbid/ChangeLog b/libgcc/config/libbid/ChangeLog
index 5ff91cc..16ab7f6 100644
--- a/libgcc/config/libbid/ChangeLog
+++ b/libgcc/config/libbid/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index b29c671..eb45652 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-12-27  Harald Anlauf  <anlauf@gmx.de>
 
 	Backported from master:
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 1efdec0..aac1d80 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-10  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libhsail-rt/ChangeLog b/libhsail-rt/ChangeLog
index 188e556..cf5f72d 100644
--- a/libhsail-rt/ChangeLog
+++ b/libhsail-rt/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index f96a1cb..3801e01 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-29  Iain Sandoe  <iain@sandoe.co.uk>
 
 	Backported from master:
diff --git a/libitm/ChangeLog b/libitm/ChangeLog
index 63ddf71..992e395 100644
--- a/libitm/ChangeLog
+++ b/libitm/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-02-13  Alan Modra  <amodra@gmail.com>
 
 	Backported from master:
diff --git a/libobjc/ChangeLog b/libobjc/ChangeLog
index e6b290b..cda303d 100644
--- a/libobjc/ChangeLog
+++ b/libobjc/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/liboffloadmic/ChangeLog b/liboffloadmic/ChangeLog
index ce49827..da4c38b 100644
--- a/liboffloadmic/ChangeLog
+++ b/liboffloadmic/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libphobos/ChangeLog b/libphobos/ChangeLog
index 318ac9b..267655ac 100644
--- a/libphobos/ChangeLog
+++ b/libphobos/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-04-26  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	Backported from master:
diff --git a/libquadmath/ChangeLog b/libquadmath/ChangeLog
index 6e4c3e5..65cd67b 100644
--- a/libquadmath/ChangeLog
+++ b/libquadmath/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index a3fde81..5fede98 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-05-10  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libssp/ChangeLog b/libssp/ChangeLog
index b917704..5acf87f 100644
--- a/libssp/ChangeLog
+++ b/libssp/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index aa5331b..ad0c46e 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2022-06-15  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master:
diff --git a/libvtv/ChangeLog b/libvtv/ChangeLog
index 49e9bae..08e7d9d 100644
--- a/libvtv/ChangeLog
+++ b/libvtv/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/lto-plugin/ChangeLog b/lto-plugin/ChangeLog
index d20c491..e5d2548 100644
--- a/lto-plugin/ChangeLog
+++ b/lto-plugin/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.
diff --git a/maintainer-scripts/ChangeLog b/maintainer-scripts/ChangeLog
index 982fdf7..67665d7 100644
--- a/maintainer-scripts/ChangeLog
+++ b/maintainer-scripts/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master:
diff --git a/zlib/ChangeLog b/zlib/ChangeLog
index 6a7f7f4..31c5885 100644
--- a/zlib/ChangeLog
+++ b/zlib/ChangeLog
@@ -1,3 +1,7 @@
+2022-06-28  Release Manager
+
+	* GCC 10.4.0 released.
+
 2021-04-08  Release Manager
 
 	* GCC 10.3.0 released.