diff --git a/src/backend/postmaster/launch_backend.c b/src/backend/postmaster/launch_backend.c
index cb0c3e2f8a..15539b2b2c 100644
--- a/src/backend/postmaster/launch_backend.c
+++ b/src/backend/postmaster/launch_backend.c
@@ -20,7 +20,7 @@
  * same state as after fork() on a Unix system.
  *
  *
- * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
diff --git a/src/backend/tcop/backend_startup.c b/src/backend/tcop/backend_startup.c
index ee73d01e16..cfa2755196 100644
--- a/src/backend/tcop/backend_startup.c
+++ b/src/backend/tcop/backend_startup.c
@@ -3,7 +3,7 @@
  * backend_startup.c
  *	  Backend startup code
  *
- * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
diff --git a/src/common/unicode/case_test.c b/src/common/unicode/case_test.c
index 85a43decb8..de92811ec7 100644
--- a/src/common/unicode/case_test.c
+++ b/src/common/unicode/case_test.c
@@ -2,7 +2,7 @@
  * case_test.c
  *		Program to test Unicode case mapping functions.
  *
- * Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2017-2024, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/common/unicode/case_test.c
diff --git a/src/common/unicode/generate-unicode_case_table.pl b/src/common/unicode/generate-unicode_case_table.pl
index 44b785b861..e09ccffd42 100644
--- a/src/common/unicode/generate-unicode_case_table.pl
+++ b/src/common/unicode/generate-unicode_case_table.pl
@@ -6,7 +6,7 @@
 # Input: UnicodeData.txt
 # Output: unicode_case_table.h
 #
-# Copyright (c) 2000-2023, PostgreSQL Global Development Group
+# Copyright (c) 2000-2024, PostgreSQL Global Development Group
 
 use strict;
 use warnings;
@@ -69,7 +69,7 @@ print $OT <<"EOS";
  * unicode_case_table.h
  *	  Case mapping and information table.
  *
- * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/common/unicode_case_table.h
diff --git a/src/common/unicode_case.c b/src/common/unicode_case.c
index bc423b0890..dee6458efb 100644
--- a/src/common/unicode_case.c
+++ b/src/common/unicode_case.c
@@ -2,7 +2,7 @@
  * unicode_case.c
  *		Unicode case mapping and case conversion.
  *
- * Portions Copyright (c) 2017-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2017-2024, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *	  src/common/unicode_case.c
diff --git a/src/include/common/unicode_case.h b/src/include/common/unicode_case.h
index c0c3382e79..c1c2d4c576 100644
--- a/src/include/common/unicode_case.h
+++ b/src/include/common/unicode_case.h
@@ -5,7 +5,7 @@
  *
  * These definitions can be used by both frontend and backend code.
  *
- * Copyright (c) 2017-2023, PostgreSQL Global Development Group
+ * Copyright (c) 2017-2024, PostgreSQL Global Development Group
  *
  * src/include/common/unicode_case.h
  *
diff --git a/src/include/common/unicode_case_table.h b/src/include/common/unicode_case_table.h
index b239f0b3c3..440cb3d17a 100644
--- a/src/include/common/unicode_case_table.h
+++ b/src/include/common/unicode_case_table.h
@@ -3,7 +3,7 @@
  * unicode_case_table.h
  *	  Case mapping and information table.
  *
- * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/common/unicode_case_table.h
diff --git a/src/include/tcop/backend_startup.h b/src/include/tcop/backend_startup.h
index d29eaed1e9..16a68c7758 100644
--- a/src/include/tcop/backend_startup.h
+++ b/src/include/tcop/backend_startup.h
@@ -4,7 +4,7 @@
  *	  prototypes for backend_startup.c.
  *
  *
- * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * src/include/tcop/backend_startup.h
diff --git a/src/test/modules/test_json_parser/test_json_parser_incremental.c b/src/test/modules/test_json_parser/test_json_parser_incremental.c
index c28db05647..156c97b48a 100644
--- a/src/test/modules/test_json_parser/test_json_parser_incremental.c
+++ b/src/test/modules/test_json_parser/test_json_parser_incremental.c
@@ -3,7 +3,7 @@
  * test_json_parser_incremental.c
  *    Test program for incremental JSON parser
  *
- * Copyright (c) 2023, PostgreSQL Global Development Group
+ * Copyright (c) 2024, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *    src/test/modules/test_json_parser/test_json_parser_incremental.c
diff --git a/src/test/modules/test_json_parser/test_json_parser_perf.c b/src/test/modules/test_json_parser/test_json_parser_perf.c
index 517dc8529a..2fb4897ccb 100644
--- a/src/test/modules/test_json_parser/test_json_parser_perf.c
+++ b/src/test/modules/test_json_parser/test_json_parser_perf.c
@@ -3,7 +3,7 @@
  * test_json_parser_perf.c
  *    Performancet est program for both flavors of the JSON parser
  *
- * Copyright (c) 2023, PostgreSQL Global Development Group
+ * Copyright (c) 2024, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
  *    src/test/modules/test_json_parser/test_json_parser_perf.c