diff --git a/auctex-12.2.tar.gz b/auctex-12.2.tar.gz
deleted file mode 100644
index cf8b253..0000000
--- a/auctex-12.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:59677958aa76c7a15cf62f098524f79b1cdb74d24bcdf36448ecbb5911d07893
-size 1511396
diff --git a/auctex-12.2.tar.gz.sig b/auctex-12.2.tar.gz.sig
deleted file mode 100644
index 993d350..0000000
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diff --git a/auctex-12.3.tar.gz b/auctex-12.3.tar.gz
new file mode 100644
index 0000000..350f402
--- /dev/null
+++ b/auctex-12.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2fd4fe30b69457c9277fe204d3e83c8472bcf500c8fe4a810d744406174ca9dd
+size 1534283
diff --git a/auctex-12.3.tar.gz.sig b/auctex-12.3.tar.gz.sig
new file mode 100644
index 0000000..5ef6f4a
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diff --git a/dvips.patch b/dvips.patch
index e8e63b8..bdd3376 100644
--- a/dvips.patch
+++ b/dvips.patch
@@ -1,6 +1,6 @@
 --- tex.el
 +++ tex.el	2015-11-14 12:10:30.386677534 +0200
-@@ -354,7 +354,7 @@
+@@ -426,7 +426,7 @@
  ;; TeX-print-command.
  
  (defcustom TeX-print-command
diff --git a/emacs-auctex.changes b/emacs-auctex.changes
index dc62839..3c14d28 100644
--- a/emacs-auctex.changes
+++ b/emacs-auctex.changes
@@ -1,3 +1,36 @@
+-------------------------------------------------------------------
+Thu Oct 14 10:07:35 UTC 2021 - Dr. Werner Fink <werner@suse.de>
+
+- Update to 12.3
+  * Support for 'PSTricks' is now PDF-oriented.  AUCTeX no longer turns
+    off PDF mode for 'PSTricks' documents even without 'pst-pdf'.  It
+    now sets up 'TeX-PDF-from-DVI' option so that PDF output is
+    generated when 'TeX-PDF-mode' is enabled (default).  Users who want
+    DVI output should disable PDF mode explicitly by file local
+    variable, or customize 'TeX-PDF-mode' to 'nil'.
+  * The function 'font-latex-update-font-lock' has been obsoleted in
+    order to fix 'bug#37945'.  That function was used by several style
+    files in order to refresh fontification after adding new symbols or
+    verbatim constructs.  It is better to call 'font-lock-flush' in the
+    former case and 'font-latex-set-syntactic-keywords' in the latter
+    case.  The function 'font-latex-update-font-lock' still exists as a
+    no-op which only shows a warning explaining how to update font-lock
+    as mentioned above.
+  * Math expression highlighting was improved.  Highlighting for
+    documents with a lot of inline math expressions '$...$' won't get
+    scrambled now ('bug#33139').
+  * AUCTeX tracks changes in LaTeX2e 2020-02-02 release.  AUCTeX
+    supports the improvements to LaTeX font selection mechanism (NFSS).
+    New macros like '\textsw' or '\textulc' are added to font insertion
+    keyboard commands.  See the section for inserting font specifiers
+    for details.  Further, the entries in the menu LaTeX, Insert Font
+    are reorganized and adjusted accordingly.
+  * Insertion of environments in LaTeX documents (i.e.  'C-c C-e') was
+    improved.  The former code had a few bugs, which sometimes resulted
+    in either spurious empty line or spurious comment prefix, or both,
+    especially when the region is active.  Those bugs are now fixed.
+  * More bugs fixed, other minor features implemented.
+
 -------------------------------------------------------------------
 Fri Aug 14 10:03:53 UTC 2020 - Dr. Werner Fink <werner@suse.de>
 
diff --git a/emacs-auctex.spec b/emacs-auctex.spec
index 403e038..ecc44a8 100644
--- a/emacs-auctex.spec
+++ b/emacs-auctex.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package emacs-auctex
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -28,15 +28,13 @@ Provides:       ge_auc
 Requires:       emacs
 Requires:       texlive-latex
 Requires:       texlive-tools
-Supplements:    packageand(texlive:emacs)
-%if %suse_version > 1220
+Supplements:    (texlive and emacs)
 BuildRequires:  makeinfo
 BuildRequires:  texinfo
 BuildRequires:  texlive-collection-latexextra
 BuildRequires:  texlive-tex
 BuildRequires:  texlive-texinfo
-%endif
-Version:        12.2
+Version:        12.3
 Release:        0
 Summary:        AUC TeX: An Emacs Extension
 License:        GPL-2.0-or-later