Update copyright year for 2023

diff --git a/include/abg-comp-filter.h b/include/abg-comp-filter.h
index c26a842a..92c34c6f 100644
--- a/include/abg-comp-filter.h
+++ b/include/abg-comp-filter.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-comparison.h b/include/abg-comparison.h
index a3c197b9..440080a5 100644
--- a/include/abg-comparison.h
+++ b/include/abg-comparison.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-config.h b/include/abg-config.h
index ee18d539..d71b47e6 100644
--- a/include/abg-config.h
+++ b/include/abg-config.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-corpus.h b/include/abg-corpus.h
index 75f6df7c..90419694 100644
--- a/include/abg-corpus.h
+++ b/include/abg-corpus.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-ctf-reader.h b/include/abg-ctf-reader.h
index 79c50d75..58d1bc77 100644
--- a/include/abg-ctf-reader.h
+++ b/include/abg-ctf-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2021-2022 Oracle, Inc.
+// Copyright (C) 2021-2023 Oracle, Inc.
 //
 // Author: Jose E. Marchesi
 
diff --git a/include/abg-cxx-compat.h b/include/abg-cxx-compat.h
index b5579220..954a3a45 100644
--- a/include/abg-cxx-compat.h
+++ b/include/abg-cxx-compat.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2019-2022 Google, Inc.
+// Copyright (C) 2019-2023 Google, Inc.
 
 /// @file
 
diff --git a/include/abg-diff-utils.h b/include/abg-diff-utils.h
index b0e96b41..952f3350 100644
--- a/include/abg-diff-utils.h
+++ b/include/abg-diff-utils.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/include/abg-dwarf-reader.h b/include/abg-dwarf-reader.h
index 4daaaed0..8d2e7eed 100644
--- a/include/abg-dwarf-reader.h
+++ b/include/abg-dwarf-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-elf-based-reader.h b/include/abg-elf-based-reader.h
index 4fae055e..597eec90 100644
--- a/include/abg-elf-based-reader.h
+++ b/include/abg-elf-based-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-elf-reader.h b/include/abg-elf-reader.h
index 42897a92..2d25b500 100644
--- a/include/abg-elf-reader.h
+++ b/include/abg-elf-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-fe-iface.h b/include/abg-fe-iface.h
index 0b5a8e19..d83a1391 100644
--- a/include/abg-fe-iface.h
+++ b/include/abg-fe-iface.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-fwd.h b/include/abg-fwd.h
index 6085aa80..96aeab54 100644
--- a/include/abg-fwd.h
+++ b/include/abg-fwd.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-hash.h b/include/abg-hash.h
index 86cc007f..eb91639e 100644
--- a/include/abg-hash.h
+++ b/include/abg-hash.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-ini.h b/include/abg-ini.h
index 32128eba..98941296 100644
--- a/include/abg-ini.h
+++ b/include/abg-ini.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-interned-str.h b/include/abg-interned-str.h
index 584c4898..1102bc5e 100644
--- a/include/abg-interned-str.h
+++ b/include/abg-interned-str.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-ir.h b/include/abg-ir.h
index 399409f5..ada61e9f 100644
--- a/include/abg-ir.h
+++ b/include/abg-ir.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-libxml-utils.h b/include/abg-libxml-utils.h
index 62e098fc..8c59337f 100644
--- a/include/abg-libxml-utils.h
+++ b/include/abg-libxml-utils.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-reader.h b/include/abg-reader.h
index eb2a2f4d..928f63dd 100644
--- a/include/abg-reader.h
+++ b/include/abg-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-regex.h b/include/abg-regex.h
index 6c0a54f9..8c95c543 100644
--- a/include/abg-regex.h
+++ b/include/abg-regex.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/include/abg-reporter.h b/include/abg-reporter.h
index cd818013..6b16f13c 100644
--- a/include/abg-reporter.h
+++ b/include/abg-reporter.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-sptr-utils.h b/include/abg-sptr-utils.h
index 3c57f4f5..2b851868 100644
--- a/include/abg-sptr-utils.h
+++ b/include/abg-sptr-utils.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/include/abg-suppression.h b/include/abg-suppression.h
index 90575f73..8e22e122 100644
--- a/include/abg-suppression.h
+++ b/include/abg-suppression.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-tools-utils.h b/include/abg-tools-utils.h
index 3d7f0d23..ff7618fe 100644
--- a/include/abg-tools-utils.h
+++ b/include/abg-tools-utils.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 ///@file
 
diff --git a/include/abg-traverse.h b/include/abg-traverse.h
index 04942fae..8ba01053 100644
--- a/include/abg-traverse.h
+++ b/include/abg-traverse.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-viz-common.h b/include/abg-viz-common.h
index 603c12af..c95e0b4f 100644
--- a/include/abg-viz-common.h
+++ b/include/abg-viz-common.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-viz-dot.h b/include/abg-viz-dot.h
index d7e07bbd..6fd710d8 100644
--- a/include/abg-viz-dot.h
+++ b/include/abg-viz-dot.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-viz-svg.h b/include/abg-viz-svg.h
index d572e3e0..74fa6f80 100644
--- a/include/abg-viz-svg.h
+++ b/include/abg-viz-svg.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/include/abg-workers.h b/include/abg-workers.h
index 13c259e1..af805f12 100644
--- a/include/abg-workers.h
+++ b/include/abg-workers.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/include/abg-writer.h b/include/abg-writer.h
index 58f60b74..540487e0 100644
--- a/include/abg-writer.h
+++ b/include/abg-writer.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-comp-filter.cc b/src/abg-comp-filter.cc
index 273f496d..67d8e719 100644
--- a/src/abg-comp-filter.cc
+++ b/src/abg-comp-filter.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-comparison-priv.h b/src/abg-comparison-priv.h
index 72c16ec4..46438e94 100644
--- a/src/abg-comparison-priv.h
+++ b/src/abg-comparison-priv.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-comparison.cc b/src/abg-comparison.cc
index 0ecd0f27..969c32d8 100644
--- a/src/abg-comparison.cc
+++ b/src/abg-comparison.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-config.cc b/src/abg-config.cc
index 7cb0040e..bd1e5d83 100644
--- a/src/abg-config.cc
+++ b/src/abg-config.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/src/abg-corpus-priv.h b/src/abg-corpus-priv.h
index 0b40d800..300ec687 100644
--- a/src/abg-corpus-priv.h
+++ b/src/abg-corpus-priv.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/src/abg-corpus.cc b/src/abg-corpus.cc
index 8c1e6158..b6f760bb 100644
--- a/src/abg-corpus.cc
+++ b/src/abg-corpus.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/src/abg-ctf-reader.cc b/src/abg-ctf-reader.cc
index ee690a32..7159a578 100644
--- a/src/abg-ctf-reader.cc
+++ b/src/abg-ctf-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2021-2022 Oracle, Inc.
+// Copyright (C) 2021-2023 Oracle, Inc.
 //
 // Author: Jose E. Marchesi
 
diff --git a/src/abg-default-reporter.cc b/src/abg-default-reporter.cc
index 8c705060..deac0e93 100644
--- a/src/abg-default-reporter.cc
+++ b/src/abg-default-reporter.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-diff-utils.cc b/src/abg-diff-utils.cc
index 88f2e135..ae33453c 100644
--- a/src/abg-diff-utils.cc
+++ b/src/abg-diff-utils.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <cstring>
 
diff --git a/src/abg-dwarf-reader.cc b/src/abg-dwarf-reader.cc
index 2aeda8cf..4d581ee5 100644
--- a/src/abg-dwarf-reader.cc
+++ b/src/abg-dwarf-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-elf-based-reader.cc b/src/abg-elf-based-reader.cc
index 203e3412..cd7b59b6 100644
--- a/src/abg-elf-based-reader.cc
+++ b/src/abg-elf-based-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-elf-helpers.cc b/src/abg-elf-helpers.cc
index d2379f4d..5d8e3188 100644
--- a/src/abg-elf-helpers.cc
+++ b/src/abg-elf-helpers.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 
 /// @file
 ///
diff --git a/src/abg-elf-helpers.h b/src/abg-elf-helpers.h
index 23990de4..bc2f608f 100644
--- a/src/abg-elf-helpers.h
+++ b/src/abg-elf-helpers.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 
 /// @file
 ///
diff --git a/src/abg-elf-reader.cc b/src/abg-elf-reader.cc
index 16e8b022..1f704e3f 100644
--- a/src/abg-elf-reader.cc
+++ b/src/abg-elf-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-fe-iface.cc b/src/abg-fe-iface.cc
index 88993248..f3798cd6 100644
--- a/src/abg-fe-iface.cc
+++ b/src/abg-fe-iface.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2022 Red Hat, Inc.
+// Copyright (C) 2022-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-hash.cc b/src/abg-hash.cc
index 8c942a11..efc09df0 100644
--- a/src/abg-hash.cc
+++ b/src/abg-hash.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/src/abg-ini.cc b/src/abg-ini.cc
index 63c356a9..227e3c84 100644
--- a/src/abg-ini.cc
+++ b/src/abg-ini.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-internal.h b/src/abg-internal.h
index 0ccc1ebc..44627b14 100644
--- a/src/abg-internal.h
+++ b/src/abg-internal.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-ir-priv.h b/src/abg-ir-priv.h
index 18ed3666..04021c3b 100644
--- a/src/abg-ir-priv.h
+++ b/src/abg-ir-priv.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-ir.cc b/src/abg-ir.cc
index 46ac81a2..6e41d849 100644
--- a/src/abg-ir.cc
+++ b/src/abg-ir.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -*- mode:
 // C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 //Author: Dodji Seketeli
 
diff --git a/src/abg-leaf-reporter.cc b/src/abg-leaf-reporter.cc
index 4b9e3650..7d363746 100644
--- a/src/abg-leaf-reporter.cc
+++ b/src/abg-leaf-reporter.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-libxml-utils.cc b/src/abg-libxml-utils.cc
index e151d53c..cd375de1 100644
--- a/src/abg-libxml-utils.cc
+++ b/src/abg-libxml-utils.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/src/abg-reader.cc b/src/abg-reader.cc
index 31eb8fce..b71ca9c2 100644
--- a/src/abg-reader.cc
+++ b/src/abg-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/src/abg-regex.cc b/src/abg-regex.cc
index 50d2ec3f..70e6fb33 100644
--- a/src/abg-regex.cc
+++ b/src/abg-regex.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/src/abg-reporter-priv.cc b/src/abg-reporter-priv.cc
index 70839085..a913fa69 100644
--- a/src/abg-reporter-priv.cc
+++ b/src/abg-reporter-priv.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-reporter-priv.h b/src/abg-reporter-priv.h
index 2b0f00d4..0cac883b 100644
--- a/src/abg-reporter-priv.h
+++ b/src/abg-reporter-priv.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-suppression-priv.h b/src/abg-suppression-priv.h
index 13d17059..4b74096d 100644
--- a/src/abg-suppression-priv.h
+++ b/src/abg-suppression-priv.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-suppression.cc b/src/abg-suppression.cc
index 07fe47f4..059c3909 100644
--- a/src/abg-suppression.cc
+++ b/src/abg-suppression.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-symtab-reader.cc b/src/abg-symtab-reader.cc
index fff66009..dd954b7e 100644
--- a/src/abg-symtab-reader.cc
+++ b/src/abg-symtab-reader.cc
@@ -1,8 +1,8 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/src/abg-symtab-reader.h b/src/abg-symtab-reader.h
index 4d90c302..2e13e7f9 100644
--- a/src/abg-symtab-reader.h
+++ b/src/abg-symtab-reader.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/src/abg-tools-utils.cc b/src/abg-tools-utils.cc
index 7894219b..db04ccd8 100644
--- a/src/abg-tools-utils.cc
+++ b/src/abg-tools-utils.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 ///@file
 
diff --git a/src/abg-traverse.cc b/src/abg-traverse.cc
index 7d46ddfa..f31a8980 100644
--- a/src/abg-traverse.cc
+++ b/src/abg-traverse.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 
diff --git a/src/abg-viz-common.cc b/src/abg-viz-common.cc
index 6c1422fe..42a12753 100644
--- a/src/abg-viz-common.cc
+++ b/src/abg-viz-common.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <stdexcept>
 #include <fstream>
diff --git a/src/abg-viz-dot.cc b/src/abg-viz-dot.cc
index 4d40c36a..e4385194 100644
--- a/src/abg-viz-dot.cc
+++ b/src/abg-viz-dot.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <stdexcept>
 #include <fstream>
diff --git a/src/abg-viz-svg.cc b/src/abg-viz-svg.cc
index e30b340d..f5488b63 100644
--- a/src/abg-viz-svg.cc
+++ b/src/abg-viz-svg.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <stdexcept>
 #include <fstream>
diff --git a/src/abg-workers.cc b/src/abg-workers.cc
index 318cd158..560f0742 100644
--- a/src/abg-workers.cc
+++ b/src/abg-workers.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/src/abg-writer.cc b/src/abg-writer.cc
index 1cffd77b..f30ce389 100644
--- a/src/abg-writer.cc
+++ b/src/abg-writer.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/tests/print-diff-tree.cc b/tests/print-diff-tree.cc
index 7b9c4df1..b6e63803 100644
--- a/tests/print-diff-tree.cc
+++ b/tests/print-diff-tree.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-abicompat.cc b/tests/test-abicompat.cc
index a8aae5b3..e7b21959 100644
--- a/tests/test-abicompat.cc
+++ b/tests/test-abicompat.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2014-2022 Red Hat, Inc.
+// Copyright (C) 2014-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-abidiff-exit.cc b/tests/test-abidiff-exit.cc
index 3dadf0fb..e7f02eb5 100644
--- a/tests/test-abidiff-exit.cc
+++ b/tests/test-abidiff-exit.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2016-2022 Red Hat, Inc.
+// Copyright (C) 2016-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-abidiff.cc b/tests/test-abidiff.cc
index 83768262..6a5b3e27 100644
--- a/tests/test-abidiff.cc
+++ b/tests/test-abidiff.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-alt-dwarf-file.cc b/tests/test-alt-dwarf-file.cc
index 0c79f6f8..d9d68145 100644
--- a/tests/test-alt-dwarf-file.cc
+++ b/tests/test-alt-dwarf-file.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-core-diff.cc b/tests/test-core-diff.cc
index 9bad8220..ee403dc7 100644
--- a/tests/test-core-diff.cc
+++ b/tests/test-core-diff.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-cxx-compat.cc b/tests/test-cxx-compat.cc
index e196bf37..5d9fb416 100644
--- a/tests/test-cxx-compat.cc
+++ b/tests/test-cxx-compat.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/tests/test-diff-dwarf-abixml.cc b/tests/test-diff-dwarf-abixml.cc
index b778afe6..143de629 100644
--- a/tests/test-diff-dwarf-abixml.cc
+++ b/tests/test-diff-dwarf-abixml.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-diff-dwarf.cc b/tests/test-diff-dwarf.cc
index 4d92b73a..08d82837 100644
--- a/tests/test-diff-dwarf.cc
+++ b/tests/test-diff-dwarf.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-diff-filter.cc b/tests/test-diff-filter.cc
index 7f9355bd..37966d5a 100644
--- a/tests/test-diff-filter.cc
+++ b/tests/test-diff-filter.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-diff-pkg.cc b/tests/test-diff-pkg.cc
index 56043a6f..99dc381d 100644
--- a/tests/test-diff-pkg.cc
+++ b/tests/test-diff-pkg.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Sinny Kumari
 
diff --git a/tests/test-diff-suppr.cc b/tests/test-diff-suppr.cc
index 29a7a3d5..d9efa864 100644
--- a/tests/test-diff-suppr.cc
+++ b/tests/test-diff-suppr.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-diff2.cc b/tests/test-diff2.cc
index 7efc90e4..a96576aa 100644
--- a/tests/test-diff2.cc
+++ b/tests/test-diff2.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-dot.cc b/tests/test-dot.cc
index 0906c1d3..8744e901 100644
--- a/tests/test-dot.cc
+++ b/tests/test-dot.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2019 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include "abg-viz-dot.h"
 
diff --git a/tests/test-elf-helpers.cc b/tests/test-elf-helpers.cc
index 1933072a..302ace92 100644
--- a/tests/test-elf-helpers.cc
+++ b/tests/test-elf-helpers.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/tests/test-ini.cc b/tests/test-ini.cc
index 02fd800b..24968e8c 100644
--- a/tests/test-ini.cc
+++ b/tests/test-ini.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-ir-walker.cc b/tests/test-ir-walker.cc
index aed3f010..37485e31 100644
--- a/tests/test-ir-walker.cc
+++ b/tests/test-ir-walker.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <string>
 #include <fstream>
diff --git a/tests/test-kmi-whitelist.cc b/tests/test-kmi-whitelist.cc
index a25d0349..16d98bc4 100644
--- a/tests/test-kmi-whitelist.cc
+++ b/tests/test-kmi-whitelist.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/tests/test-lookup-syms.cc b/tests/test-lookup-syms.cc
index eb37f114..275c99d7 100644
--- a/tests/test-lookup-syms.cc
+++ b/tests/test-lookup-syms.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-read-ctf.cc b/tests/test-read-ctf.cc
index 2dfdbf29..aac68521 100644
--- a/tests/test-read-ctf.cc
+++ b/tests/test-read-ctf.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2021-2022 Oracle, Inc.
+// Copyright (C) 2021-2023 Oracle, Inc.
 //
 // Author: Guillermo E. Martinez
 
diff --git a/tests/test-read-dwarf.cc b/tests/test-read-dwarf.cc
index fbe3436b..5a00e14e 100644
--- a/tests/test-read-dwarf.cc
+++ b/tests/test-read-dwarf.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-read-write.cc b/tests/test-read-write.cc
index 52ebc294..803b1309 100644
--- a/tests/test-read-write.cc
+++ b/tests/test-read-write.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file read an XML corpus file (in the native Abigail XML format),
 /// save it back and diff the resulting XML file against the input
diff --git a/tests/test-svg.cc b/tests/test-svg.cc
index 003676f6..e4165202 100644
--- a/tests/test-svg.cc
+++ b/tests/test-svg.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- mode: C++ -*-
 //
-// Copyright (C) 2013-2019 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include "abg-viz-svg.h"
 
diff --git a/tests/test-symtab-reader.cc b/tests/test-symtab-reader.cc
index 248018fd..8f8ae445 100644
--- a/tests/test-symtab-reader.cc
+++ b/tests/test-symtab-reader.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/tests/test-symtab.cc b/tests/test-symtab.cc
index 230fcf1a..dd3f3824 100644
--- a/tests/test-symtab.cc
+++ b/tests/test-symtab.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2020-2022 Google, Inc.
+// Copyright (C) 2020-2023 Google, Inc.
 //
 // Author: Matthias Maennich
 
diff --git a/tests/test-tools-utils.cc b/tests/test-tools-utils.cc
index 31fbbaf7..ac335c69 100644
--- a/tests/test-tools-utils.cc
+++ b/tests/test-tools-utils.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 /// @file
 ///
diff --git a/tests/test-types-stability.cc b/tests/test-types-stability.cc
index ea94be9c..3fd4da13 100644
--- a/tests/test-types-stability.cc
+++ b/tests/test-types-stability.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tests/test-utils.cc b/tests/test-utils.cc
index 9fad5db4..cb5b6a06 100644
--- a/tests/test-utils.cc
+++ b/tests/test-utils.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #include <iostream>
 #include "test-utils.h"
diff --git a/tests/test-utils.h b/tests/test-utils.h
index 7f532909..02779735 100644
--- a/tests/test-utils.h
+++ b/tests/test-utils.h
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 
 #ifndef __TEST_UTILS_H__
 #define __TEST_UTILS_H__
diff --git a/tools/abicompat.cc b/tools/abicompat.cc
index e17e53dd..043e9028 100644
--- a/tools/abicompat.cc
+++ b/tools/abicompat.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2014-2022 Red Hat, Inc.
+// Copyright (C) 2014-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/abidiff.cc b/tools/abidiff.cc
index cd564a63..b27d8b08 100644
--- a/tools/abidiff.cc
+++ b/tools/abidiff.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/abidw.cc b/tools/abidw.cc
index 01e88807..102d3a8c 100644
--- a/tools/abidw.cc
+++ b/tools/abidw.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/abilint.cc b/tools/abilint.cc
index 41d5e073..91718067 100644
--- a/tools/abilint.cc
+++ b/tools/abilint.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/abipkgdiff.cc b/tools/abipkgdiff.cc
index 3c7b6d02..99fc1a33 100644
--- a/tools/abipkgdiff.cc
+++ b/tools/abipkgdiff.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2015-2022 Red Hat, Inc.
+// Copyright (C) 2015-2023 Red Hat, Inc.
 //
 // Author: Sinny Kumari
 
diff --git a/tools/abisym.cc b/tools/abisym.cc
index 434b3fc9..879798af 100644
--- a/tools/abisym.cc
+++ b/tools/abisym.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/binilint.cc b/tools/binilint.cc
index d92cccf6..d29c4289 100644
--- a/tools/binilint.cc
+++ b/tools/binilint.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2013-2022 Red Hat, Inc.
+// Copyright (C) 2013-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/tools/kmidiff.cc b/tools/kmidiff.cc
index 728392e3..76fb9d92 100644
--- a/tools/kmidiff.cc
+++ b/tools/kmidiff.cc
@@ -1,7 +1,7 @@ 
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 // -*- Mode: C++ -*-
 //
-// Copyright (C) 2017-2022 Red Hat, Inc.
+// Copyright (C) 2017-2023 Red Hat, Inc.
 //
 // Author: Dodji Seketeli
 
diff --git a/update-copyright.sh b/update-copyright.sh
index bb565414..8e1d11bc 100644
--- a/update-copyright.sh
+++ b/update-copyright.sh
@@ -1,8 +1,8 @@ 
 #!/bin/sh
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-oldyear=2021
-newyear=2022
+oldyear=2022
+newyear=2023
 
 for dir in src include tools tests; do
     for ext in cc h; do