diff -Nru gcc-12-cross-5ubuntu2/debian/changelog gcc-12-cross-5ubuntu2.4/debian/changelog
--- gcc-12-cross-5ubuntu2/debian/changelog	2022-02-21 16:01:29.000000000 +0000
+++ gcc-12-cross-5ubuntu2.4/debian/changelog	2023-05-15 10:15:49.000000000 +0000
@@ -1,3 +1,15 @@
+gcc-12-cross (5ubuntu2.4) jammy-proposed; urgency=medium
+
+  * SRU: LP: #1995499: Backport GCC 12.3.0 to Ubuntu 22.04 LTS.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 15 May 2023 12:15:49 +0200
+
+gcc-12-cross (5ubuntu2.2) jammy-proposed; urgency=medium
+
+  * SRU: LP: #1970233: Build using GCC 12.1.0 for 22.04 LTS.
+
+ -- Matthias Klose <doko@ubuntu.com>  Mon, 22 Aug 2022 15:19:28 +0200
+
 gcc-12-cross (5ubuntu2) jammy; urgency=medium
 
   * Build using gcc 12-20220222-1ubuntu1.
diff -Nru gcc-12-cross-5ubuntu2/debian/control gcc-12-cross-5ubuntu2.4/debian/control
--- gcc-12-cross-5ubuntu2/debian/control	2022-02-21 16:01:29.000000000 +0000
+++ gcc-12-cross-5ubuntu2.4/debian/control	2023-05-15 10:15:49.000000000 +0000
@@ -4,8 +4,8 @@
 Maintainer: Debian GCC Maintainers <debian-gcc@lists.debian.org>
 Uploaders: Matthias Klose <doko@debian.org>
 Standards-Version: 4.6.0
-Build-Depends: gcc-12-source (>= 12-20220222-1~),
-  gcc-12-base (>= 12-20220222-1~),
+Build-Depends: gcc-12-source (>= 12.3.0-1~),
+  gcc-12-base (>= 12.3.0-1~),
   binutils-multiarch (>= 2.37-5),
   autoconf2.69, bison (>= 1:2.3),
   chrpath, debhelper (>= 9), dpkg-dev (>= 1.14.15), flex, gawk, gettext,
diff -Nru gcc-12-cross-5ubuntu2/debian/rules gcc-12-cross-5ubuntu2.4/debian/rules
--- gcc-12-cross-5ubuntu2/debian/rules	2022-02-21 16:01:29.000000000 +0000
+++ gcc-12-cross-5ubuntu2.4/debian/rules	2023-05-15 10:15:49.000000000 +0000
@@ -15,8 +15,8 @@
 GCC_VER := $(shell dpkg-parsechangelog |egrep ^Source:|cut -f2 -d' '|cut -f2 -d'-')
 
 ifeq ($(GCC_VER),12)
-  MIN_VER_GCC      := 12-20220222-1~
-  PPA_VER_GCC      := 12-20220222-1~
+  MIN_VER_GCC      := 12.3.0-1~
+  PPA_VER_GCC      := 12.3.0-1~
 endif
 
 ifeq ($(GCC_VER),11)