Update ChangeLog and version files for release
diff --git a/ChangeLog b/ChangeLog
index 6b96023..659e82a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/config/ChangeLog b/config/ChangeLog
index 380e92a..8c8cabf 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 47ac7c4..e6dc651 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-01-15  Richard Earnshaw  <rearnsha@arm.com>
 
 	Backport:
diff --git a/contrib/header-tools/ChangeLog b/contrib/header-tools/ChangeLog
index 94c667f..6d001b8 100644
--- a/contrib/header-tools/ChangeLog
+++ b/contrib/header-tools/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/contrib/reghunt/ChangeLog b/contrib/reghunt/ChangeLog
index 502783c..c9465f7 100644
--- a/contrib/reghunt/ChangeLog
+++ b/contrib/reghunt/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/contrib/regression/ChangeLog b/contrib/regression/ChangeLog
index 4bfbaeb..1b99fe6 100644
--- a/contrib/regression/ChangeLog
+++ b/contrib/regression/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/fixincludes/ChangeLog b/fixincludes/ChangeLog
index 0b7a6be..12be0b9 100644
--- a/fixincludes/ChangeLog
+++ b/fixincludes/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-01-01  John David Anglin  <danglin@gcc.gnu.org>
 
 	Backport from mainline
diff --git a/gcc/BASE-VER b/gcc/BASE-VER
index 56b6be4..a2f28f4 100644
--- a/gcc/BASE-VER
+++ b/gcc/BASE-VER
@@ -1 +1 @@
-8.3.1
+8.4.0
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7496864..142499c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-03-02  Martin Liska  <mliska@suse.cz>
 
 	Backport from mainline
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 7e209f9..cb4bdaf 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-11-25  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR ada/92575
diff --git a/gcc/brig/ChangeLog b/gcc/brig/ChangeLog
index e56f585..b35950a 100644
--- a/gcc/brig/ChangeLog
+++ b/gcc/brig/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index d3eeb51..dbe7441 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index b85760b..0fc2d97 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 40a1f39..a525d4f 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/93905
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 466fc24..d3be753 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-19  Mark Eggleston  <markeggleston@gcc.gnu.org>
 
 	Backported from mainline
diff --git a/gcc/go/ChangeLog b/gcc/go/ChangeLog
index 303e330..5b988e5 100644
--- a/gcc/go/ChangeLog
+++ b/gcc/go/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/gcc/jit/ChangeLog b/gcc/jit/ChangeLog
index 60a2afe..a5c97a2 100644
--- a/gcc/jit/ChangeLog
+++ b/gcc/jit/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index bb54ea7..45985c7 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-01-20  Martin Liska  <mliska@suse.cz>
 
 	Backport from mainline
diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index 336539c..d597cc3 100644
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-08-29  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/objcp/ChangeLog b/gcc/objcp/ChangeLog
index deb9a22..ab119c4 100644
--- a/gcc/objcp/ChangeLog
+++ b/gcc/objcp/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-08-29  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/po/ChangeLog b/gcc/po/ChangeLog
index 43bd38e..c8822fa 100644
--- a/gcc/po/ChangeLog
+++ b/gcc/po/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6cb289c..ab652dd 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-29  Peter Bergner  <bergner@linux.ibm.com>
 
 	Revert
diff --git a/gnattools/ChangeLog b/gnattools/ChangeLog
index 91e3614..a41f71a 100644
--- a/gnattools/ChangeLog
+++ b/gnattools/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/gotools/ChangeLog b/gotools/ChangeLog
index 3455622..4eef699 100644
--- a/gotools/ChangeLog
+++ b/gotools/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/include/ChangeLog b/include/ChangeLog
index 7456a13..a7820ec 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-04-08  Claudiu Zissulescu  <claziss@synopsys.com>
 
 	backport mainline
diff --git a/intl/ChangeLog b/intl/ChangeLog
index b050627..98ede28 100644
--- a/intl/ChangeLog
+++ b/intl/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libada/ChangeLog b/libada/ChangeLog
index 9adc1e9..1b059b9 100644
--- a/libada/ChangeLog
+++ b/libada/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog
index e2f3a1e..59fc195 100644
--- a/libatomic/ChangeLog
+++ b/libatomic/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-03-20  Florian Weimer  <fweimer@redhat.com>
 
 	PR libgcc/60790
diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index ad0c7da..b4c5fb0 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libcc1/ChangeLog b/libcc1/ChangeLog
index e05ba2d..9cf748a 100644
--- a/libcc1/ChangeLog
+++ b/libcc1/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index f444b21..b09d3a3 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-11-21  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/libcpp/po/ChangeLog b/libcpp/po/ChangeLog
index 582dca9..35f244d 100644
--- a/libcpp/po/ChangeLog
+++ b/libcpp/po/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libdecnumber/ChangeLog b/libdecnumber/ChangeLog
index 3632c35..e7dc80f 100644
--- a/libdecnumber/ChangeLog
+++ b/libdecnumber/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-01-13  Joseph Myers  <joseph@codesourcery.com>
 
 	Backport from mainline:
diff --git a/libffi/ChangeLog b/libffi/ChangeLog
index 97bdfd0..1955117 100644
--- a/libffi/ChangeLog
+++ b/libffi/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 1e1a73a..d0ac429 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-11-17  John David Anglin  <danglin@gcc.gnu.org>
 
 	* config/pa/linux-atomic.c (__kernel_cmpxchg): Change argument 1 to
diff --git a/libgcc/config/libbid/ChangeLog b/libgcc/config/libbid/ChangeLog
index d525706..cb9be42 100644
--- a/libgcc/config/libbid/ChangeLog
+++ b/libgcc/config/libbid/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index d1e4901..60d9b43 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-11-26  Jerry DeLisle  <jvdelisle@gcc.ngu.org>
 
         Backport from mainline
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 5edb4f2..58323c2 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/libhsail-rt/ChangeLog b/libhsail-rt/ChangeLog
index b0d7e6c..76cc966 100644
--- a/libhsail-rt/ChangeLog
+++ b/libhsail-rt/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 2a9f430..227517e 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-07-25  Richard Biener  <rguenther@suse.de>
 
 	PR lto/90924
diff --git a/libitm/ChangeLog b/libitm/ChangeLog
index 2ba2707..7a5c027 100644
--- a/libitm/ChangeLog
+++ b/libitm/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-09-28  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	Backport from mainline
diff --git a/libmpx/ChangeLog b/libmpx/ChangeLog
index 72fea46..c461fd8 100644
--- a/libmpx/ChangeLog
+++ b/libmpx/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libobjc/ChangeLog b/libobjc/ChangeLog
index 037d950..8e2b0e3 100644
--- a/libobjc/ChangeLog
+++ b/libobjc/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/liboffloadmic/ChangeLog b/liboffloadmic/ChangeLog
index 0fcb6f0..2430959 100644
--- a/liboffloadmic/ChangeLog
+++ b/liboffloadmic/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libquadmath/ChangeLog b/libquadmath/ChangeLog
index 3a1083f..e7da548 100644
--- a/libquadmath/ChangeLog
+++ b/libquadmath/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-11-21  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/libsanitizer/ChangeLog b/libsanitizer/ChangeLog
index df0c944..37d9adc 100644
--- a/libsanitizer/ChangeLog
+++ b/libsanitizer/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-14  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/libssp/ChangeLog b/libssp/ChangeLog
index 8200407..1891883 100644
--- a/libssp/ChangeLog
+++ b/libssp/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 7a18c73..1d6f972 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-02-26  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backport from mainline
diff --git a/libvtv/ChangeLog b/libvtv/ChangeLog
index df0dba7..256444b 100644
--- a/libvtv/ChangeLog
+++ b/libvtv/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/lto-plugin/ChangeLog b/lto-plugin/ChangeLog
index 775f3fd..a080afd 100644
--- a/lto-plugin/ChangeLog
+++ b/lto-plugin/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.
diff --git a/maintainer-scripts/ChangeLog b/maintainer-scripts/ChangeLog
index 9ae8032..234aa50 100644
--- a/maintainer-scripts/ChangeLog
+++ b/maintainer-scripts/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2020-01-13  Joseph Myers  <joseph@codesourcery.com>
 
 	Backport:
diff --git a/zlib/ChangeLog b/zlib/ChangeLog
index d87d692..6f23c4a 100644
--- a/zlib/ChangeLog
+++ b/zlib/ChangeLog
@@ -1,3 +1,7 @@
+2020-03-04  Release Manager
+
+	* GCC 8.4.0 released.
+
 2019-02-22  Release Manager
 
 	* GCC 8.3.0 released.