diff --git a/README.md b/README.md
index 368cc97..de00e67 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ run it as described above.
 See "[docs/ACKNOWLEDGEMENTS.md](./docs/ACKNOWLEDGEMENTS.md)" for a list of
 contributors.
 
-Copyright (C) 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood.
+Copyright (C) 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood.
 
 License GPLv3+: GNU GPL version 3 or later <https://www.gnu.org/licenses/gpl-3.0.html>.
 
diff --git a/configure.ac b/configure.ac
index 1728f89..01dd07b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
-dnl Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+dnl Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
 dnl
 dnl License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
 
diff --git a/docs/build-package.sh b/docs/build-package.sh
index b943eff..b5ceb75 100755
--- a/docs/build-package.sh
+++ b/docs/build-package.sh
@@ -15,6 +15,9 @@
 # The packages built with this script are not "official", in that they are
 # not part of any Linux distribution and may not follow the distribution's
 # policies.  Use at your own risk.
+#
+# Copyright 2024-2025 Andrew Wood
+# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
 
 sourceArchive="$1"
 test -n "${sourceArchive}" && test -f "${sourceArchive}" \
diff --git a/docs/pv.1 b/docs/pv.1
index 9f5e001..422ae93 100644
--- a/docs/pv.1
+++ b/docs/pv.1
@@ -795,7 +795,7 @@ Alternatively, use the issue tracker linked from the
 .BR console_codes (4)
 .\"
 .SH COPYRIGHT
-Copyright \(co 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood.
+Copyright \(co 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood.
 .PP
 License GPLv3+:
 .UR https://www.gnu.org/licenses/gpl-3.0.html
diff --git a/docs/pv.1.md b/docs/pv.1.md
index 03f2d02..8d57b90 100644
--- a/docs/pv.1.md
+++ b/docs/pv.1.md
@@ -746,7 +746,7 @@ page](https://www.ivarch.com/programs/pv.shtml).
 
 # COPYRIGHT
 
-Copyright © 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew
+Copyright © 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew
 Wood.
 
 License GPLv3+: [GNU GPL version 3 or
diff --git a/docs/release.sh b/docs/release.sh
index 1063d63..5680d6e 100755
--- a/docs/release.sh
+++ b/docs/release.sh
@@ -10,6 +10,9 @@
 # All of the release artefacts are placed in a "RELEASE-x" directory, where
 # "x" is the version.
 #
+# Copyright 2024-2025 Andrew Wood
+# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
+#
 # Version: 0.0.2 / 16 Dec 2024
 
 srcdir="$(awk '/^VPATH/{print $NF}' < Makefile | sed -n 1p)"
diff --git a/docs/test-on-vm-lab.sh b/docs/test-on-vm-lab.sh
index 56e382d..0d36c37 100755
--- a/docs/test-on-vm-lab.sh
+++ b/docs/test-on-vm-lab.sh
@@ -23,6 +23,9 @@
 #
 # Requires "scw" (https://www.ivarch.com/programs/scw.shtml).
 #
+# Copyright 2024-2025 Andrew Wood
+# License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
+#
 # Version: 0.0.1 / 16 Dec 2024
 
 # Number of tests to run in parallel on each host.
diff --git a/src/include/config-aux.h b/src/include/config-aux.h
index 4624fd2..f1b894b 100644
--- a/src/include/config-aux.h
+++ b/src/include/config-aux.h
@@ -3,7 +3,7 @@
  * `configure' script.  Include this after config.h and before anything
  * else.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/include/options.h b/src/include/options.h
index e3bd7d8..9a2744b 100644
--- a/src/include/options.h
+++ b/src/include/options.h
@@ -1,7 +1,7 @@
 /*
  * Global program option structure and the parsing function prototype.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/include/pv-internal.h b/src/include/pv-internal.h
index 971c116..8361dea 100644
--- a/src/include/pv-internal.h
+++ b/src/include/pv-internal.h
@@ -1,7 +1,7 @@
 /*
  * Functions internal to the PV library.  Include "config.h" first.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/include/pv.h b/src/include/pv.h
index a4da584..9d9c429 100644
--- a/src/include/pv.h
+++ b/src/include/pv.h
@@ -1,7 +1,7 @@
 /*
  * Functions used across the program.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/debug.c b/src/main/debug.c
index 50f7e5c..78c8a5d 100644
--- a/src/main/debug.c
+++ b/src/main/debug.c
@@ -1,7 +1,7 @@
 /*
  * Output debugging information.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/help.c b/src/main/help.c
index 91b65c1..633b4ae 100644
--- a/src/main/help.c
+++ b/src/main/help.c
@@ -1,7 +1,7 @@
 /*
  * Output command-line help to stdout.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/main.c b/src/main/main.c
index f0ee29b..9077b61 100644
--- a/src/main/main.c
+++ b/src/main/main.c
@@ -2,7 +2,7 @@
  * Main program entry point - read the command line options, then perform
  * the appropriate actions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/options.c b/src/main/options.c
index ebfaeb3..02a3722 100644
--- a/src/main/options.c
+++ b/src/main/options.c
@@ -1,7 +1,7 @@
 /*
  * Parse command-line options.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/remote.c b/src/main/remote.c
index 2627943..fdfd56f 100644
--- a/src/main/remote.c
+++ b/src/main/remote.c
@@ -1,7 +1,7 @@
 /*
  * Remote-control functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/main/version.c b/src/main/version.c
index 14873cc..1100f2e 100644
--- a/src/main/version.c
+++ b/src/main/version.c
@@ -1,7 +1,7 @@
 /*
  * Output version information to stdout.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
@@ -23,7 +23,7 @@ void display_version(void)
 	/* GNU standard first line format: program and version only */
 	printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
 	/* GNU standard second line format - "Copyright" always in English */
-	printf("Copyright %s %s\n", "2024", "Andrew Wood");
+	printf("Copyright %s %s\n", "2025", "Andrew Wood");
 	/* GNU standard license line and free software notice */
 	printf("%s\n", _("License: GPLv3+ <https://www.gnu.org/licenses/gpl-3.0.html>"));
 	printf("%s\n", _("This is free software: you are free to change and redistribute it."));
diff --git a/src/pv/calc.c b/src/pv/calc.c
index e7bc377..51515a7 100644
--- a/src/pv/calc.c
+++ b/src/pv/calc.c
@@ -1,7 +1,7 @@
 /*
  * Functions for updating the calculated state of the transfer.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/cursor.c b/src/pv/cursor.c
index 12999e3..1e7b443 100644
--- a/src/pv/cursor.c
+++ b/src/pv/cursor.c
@@ -10,7 +10,7 @@
  * terminal, so we try to use a lockfile if terminal locking doesn't work,
  * and finally abort if even that is unavailable.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/display.c b/src/pv/display.c
index eddb126..4efe379 100644
--- a/src/pv/display.c
+++ b/src/pv/display.c
@@ -1,7 +1,7 @@
 /*
  * Display functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/elapsedtime.c b/src/pv/elapsedtime.c
index c9ffde2..5219813 100644
--- a/src/pv/elapsedtime.c
+++ b/src/pv/elapsedtime.c
@@ -1,7 +1,7 @@
 /*
  * Functions relating to elapsed time.
  *
- * Copyright 2023-2024 Andrew Wood
+ * Copyright 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/file.c b/src/pv/file.c
index b1d35ad..5f75295 100644
--- a/src/pv/file.c
+++ b/src/pv/file.c
@@ -1,7 +1,7 @@
 /*
  * Functions for opening and closing files, and calculating their size.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/averagerate.c b/src/pv/format/averagerate.c
index 7787c1e..b85e5d7 100644
--- a/src/pv/format/averagerate.c
+++ b/src/pv/format/averagerate.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for average rate.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/barstyle.c b/src/pv/format/barstyle.c
index 1c83287..615cb2b 100644
--- a/src/pv/format/barstyle.c
+++ b/src/pv/format/barstyle.c
@@ -1,7 +1,7 @@
 /*
  * Formatter functions for styled progress bars.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/bufferpercent.c b/src/pv/format/bufferpercent.c
index af523fc..2916a27 100644
--- a/src/pv/format/bufferpercent.c
+++ b/src/pv/format/bufferpercent.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for transfer buffer percentage utilisation.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/bytes.c b/src/pv/format/bytes.c
index 865d481..ae8da98 100644
--- a/src/pv/format/bytes.c
+++ b/src/pv/format/bytes.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for bytes or lines transferred.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/eta.c b/src/pv/format/eta.c
index 4b1fcd1..b58d274 100644
--- a/src/pv/format/eta.c
+++ b/src/pv/format/eta.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for ETA display.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/fineta.c b/src/pv/format/fineta.c
index 704ed60..a21ebe8 100644
--- a/src/pv/format/fineta.c
+++ b/src/pv/format/fineta.c
@@ -2,7 +2,7 @@
  * Formatter function for the local time at which the transfer is expected
  * to complete.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/lastwritten.c b/src/pv/format/lastwritten.c
index b31d43f..c7d3750 100644
--- a/src/pv/format/lastwritten.c
+++ b/src/pv/format/lastwritten.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for showing the last bytes written.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/name.c b/src/pv/format/name.c
index 74a3caa..4b659c7 100644
--- a/src/pv/format/name.c
+++ b/src/pv/format/name.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for showing the name of the transfer.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/previousline.c b/src/pv/format/previousline.c
index cdbc8be..2ef7c33 100644
--- a/src/pv/format/previousline.c
+++ b/src/pv/format/previousline.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for the most recently written line.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/progressbar.c b/src/pv/format/progressbar.c
index 15d51bc..89c387e 100644
--- a/src/pv/format/progressbar.c
+++ b/src/pv/format/progressbar.c
@@ -1,7 +1,7 @@
 /*
  * Formatter functions for progress bars.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/rate.c b/src/pv/format/rate.c
index a255cb3..a4fd737 100644
--- a/src/pv/format/rate.c
+++ b/src/pv/format/rate.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for the current rate of transfer.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/sgr.c b/src/pv/format/sgr.c
index b43bcce..40b607f 100644
--- a/src/pv/format/sgr.c
+++ b/src/pv/format/sgr.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for ECMA-48 SGR codes.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/format/timer.c b/src/pv/format/timer.c
index 5f599c6..24a24e1 100644
--- a/src/pv/format/timer.c
+++ b/src/pv/format/timer.c
@@ -1,7 +1,7 @@
 /*
  * Formatter function for the elapsed transfer time.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/loop.c b/src/pv/loop.c
index 9d71f57..bd89c72 100644
--- a/src/pv/loop.c
+++ b/src/pv/loop.c
@@ -1,7 +1,7 @@
 /*
  * Functions providing the main transfer or file descriptor watching loop.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/number.c b/src/pv/number.c
index 5e9915f..f24925b 100644
--- a/src/pv/number.c
+++ b/src/pv/number.c
@@ -1,7 +1,7 @@
 /*
  * Functions for converting strings to numbers.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/proctitle.c b/src/pv/proctitle.c
index 7e5412f..bdce6e4 100644
--- a/src/pv/proctitle.c
+++ b/src/pv/proctitle.c
@@ -1,7 +1,7 @@
 /*
  * Functions for setting the process title.
  *
- * Copyright 2024 Andrew Wood
+ * Copyright 2024-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/signal.c b/src/pv/signal.c
index 4a6abad..49c5640 100644
--- a/src/pv/signal.c
+++ b/src/pv/signal.c
@@ -1,7 +1,7 @@
 /*
  * Signal handling functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/state.c b/src/pv/state.c
index 0de6e0c..3705037 100644
--- a/src/pv/state.c
+++ b/src/pv/state.c
@@ -1,7 +1,7 @@
 /*
  * State management functions.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/string.c b/src/pv/string.c
index ea01703..998bc14 100644
--- a/src/pv/string.c
+++ b/src/pv/string.c
@@ -1,7 +1,7 @@
 /*
  * Functions for portably managing strings.
  *
- * Copyright 2023-2024 Andrew Wood
+ * Copyright 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/transfer.c b/src/pv/transfer.c
index 4513cac..63420ec 100644
--- a/src/pv/transfer.c
+++ b/src/pv/transfer.c
@@ -1,7 +1,7 @@
 /*
  * Functions for transferring data between file descriptors.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */
diff --git a/src/pv/watchpid.c b/src/pv/watchpid.c
index 32f672a..b5aa8ba 100644
--- a/src/pv/watchpid.c
+++ b/src/pv/watchpid.c
@@ -1,7 +1,7 @@
 /*
  * Functions for watching file descriptors in other processes.
  *
- * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2024 Andrew Wood
+ * Copyright 2002-2008, 2010, 2012-2015, 2017, 2021, 2023-2025 Andrew Wood
  *
  * License GPLv3+: GNU GPL version 3 or later; see `docs/COPYING'.
  */