diff --git a/contrib/dns-hatchet/apply.sh b/contrib/dns-hatchet/apply.sh
index 35460d1..2bf002d 100755
--- a/contrib/dns-hatchet/apply.sh
+++ b/contrib/dns-hatchet/apply.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 ME="$(readlink -f "$(dirname "$(readlink -f "$0")")")"
 TOOLS="$ME/../../../src/tools"
diff --git a/contrib/embeddable-wg-library/test.c b/contrib/embeddable-wg-library/test.c
index 6a3e7c7..25fc9ea 100644
--- a/contrib/embeddable-wg-library/test.c
+++ b/contrib/embeddable-wg-library/test.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: LGPL-2.1+
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include "wireguard.h"
diff --git a/contrib/embeddable-wg-library/wireguard.c b/contrib/embeddable-wg-library/wireguard.c
index 370b3da..1522c91 100644
--- a/contrib/embeddable-wg-library/wireguard.c
+++ b/contrib/embeddable-wg-library/wireguard.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: LGPL-2.1+
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright (C) 2008-2012 Pablo Neira Ayuso <pablo@netfilter.org>.
  */
 
diff --git a/contrib/embeddable-wg-library/wireguard.h b/contrib/embeddable-wg-library/wireguard.h
index e9210a4..9ebe47c 100644
--- a/contrib/embeddable-wg-library/wireguard.h
+++ b/contrib/embeddable-wg-library/wireguard.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef WIREGUARD_H
diff --git a/contrib/external-tests/go/main.go b/contrib/external-tests/go/main.go
index a582797..0f8deda 100644
--- a/contrib/external-tests/go/main.go
+++ b/contrib/external-tests/go/main.go
@@ -1,4 +1,4 @@
-/* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+/* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
 
 package main
 
diff --git a/contrib/external-tests/rust/src/main.rs b/contrib/external-tests/rust/src/main.rs
index 5604a43..9fb78f2 100644
--- a/contrib/external-tests/rust/src/main.rs
+++ b/contrib/external-tests/rust/src/main.rs
@@ -1,4 +1,4 @@
-/* Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+/* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
 
 extern crate snow;
 extern crate base64;
diff --git a/contrib/extract-handshakes/extract-handshakes.sh b/contrib/extract-handshakes/extract-handshakes.sh
index 16ed630..f794ffe 100755
--- a/contrib/extract-handshakes/extract-handshakes.sh
+++ b/contrib/extract-handshakes/extract-handshakes.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 # Copyright (C) 2017-2018 Peter Wu <peter@lekensteyn.nl>. All Rights Reserved.
 
 set -e
diff --git a/contrib/extract-handshakes/offset-finder.c b/contrib/extract-handshakes/offset-finder.c
index bd5824a..ecde5ac 100644
--- a/contrib/extract-handshakes/offset-finder.c
+++ b/contrib/extract-handshakes/offset-finder.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 struct def {
diff --git a/contrib/extract-keys/config.c b/contrib/extract-keys/config.c
index e4033f9..09252a2 100644
--- a/contrib/extract-keys/config.c
+++ b/contrib/extract-keys/config.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 struct def {
diff --git a/contrib/extract-keys/extract-keys.c b/contrib/extract-keys/extract-keys.c
index f918a2a..1906be6 100644
--- a/contrib/extract-keys/extract-keys.c
+++ b/contrib/extract-keys/extract-keys.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <endian.h>
diff --git a/contrib/json/wg-json b/contrib/json/wg-json
index 3c36e65..8b35521 100755
--- a/contrib/json/wg-json
+++ b/contrib/json/wg-json
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 exec < <(exec wg show all dump)
 
diff --git a/contrib/keygen-html/keygen.html b/contrib/keygen-html/keygen.html
index d9365e0..af2a545 100644
--- a/contrib/keygen-html/keygen.html
+++ b/contrib/keygen-html/keygen.html
@@ -2,7 +2,7 @@
 <script>
 /* SPDX-License-Identifier: GPL-2.0
  *
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 function sendPubkeyToServer(pubkey, username, password)
diff --git a/contrib/keygen-html/src/curve25519_generate.c b/contrib/keygen-html/src/curve25519_generate.c
index 1e76787..6329c57 100644
--- a/contrib/keygen-html/src/curve25519_generate.c
+++ b/contrib/keygen-html/src/curve25519_generate.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <emscripten.h>
diff --git a/contrib/keygen-html/src/glue.js b/contrib/keygen-html/src/glue.js
index 981e533..5bd2511 100644
--- a/contrib/keygen-html/src/glue.js
+++ b/contrib/keygen-html/src/glue.js
@@ -1,6 +1,6 @@
 /*! SPDX-License-Identifier: GPL-2.0
  *
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 window["WireGuard"] = {
 	"generateKeypair": function() {
diff --git a/contrib/nat-hole-punching/nat-punch-client.c b/contrib/nat-hole-punching/nat-punch-client.c
index 09af278..01bb096 100644
--- a/contrib/nat-hole-punching/nat-punch-client.c
+++ b/contrib/nat-hole-punching/nat-punch-client.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * Example only. Do not run in production.
  */
diff --git a/contrib/nat-hole-punching/nat-punch-server.c b/contrib/nat-hole-punching/nat-punch-server.c
index 2f49aa8..a6a5a4c 100644
--- a/contrib/nat-hole-punching/nat-punch-server.c
+++ b/contrib/nat-hole-punching/nat-punch-server.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * Example only. Do not run in production.
  */
diff --git a/contrib/ncat-client-server/client-quick.sh b/contrib/ncat-client-server/client-quick.sh
index 8ef8f70..bf7d7f1 100755
--- a/contrib/ncat-client-server/client-quick.sh
+++ b/contrib/ncat-client-server/client-quick.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 set -e
 
diff --git a/contrib/ncat-client-server/client.sh b/contrib/ncat-client-server/client.sh
index 7994f18..dd0f575 100755
--- a/contrib/ncat-client-server/client.sh
+++ b/contrib/ncat-client-server/client.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 set -e
 [[ $UID == 0 ]] || { echo "You must be root to run this."; exit 1; }
diff --git a/contrib/ncat-client-server/server.sh b/contrib/ncat-client-server/server.sh
index 08885b0..38a69e1 100755
--- a/contrib/ncat-client-server/server.sh
+++ b/contrib/ncat-client-server/server.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 if [[ -z $NCAT_REMOTE_ADDR ]]; then
 	ip link del dev wg0 2>/dev/null
diff --git a/contrib/reresolve-dns/reresolve-dns.sh b/contrib/reresolve-dns/reresolve-dns.sh
index 5b9394b..e579f86 100755
--- a/contrib/reresolve-dns/reresolve-dns.sh
+++ b/contrib/reresolve-dns/reresolve-dns.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 set -e
 shopt -s nocasematch
diff --git a/contrib/sticky-sockets/sticky-sockets.c b/contrib/sticky-sockets/sticky-sockets.c
index a26e29b..d856ef2 100644
--- a/contrib/sticky-sockets/sticky-sockets.c
+++ b/contrib/sticky-sockets/sticky-sockets.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * This implements userspace semantics of "sticky sockets", modeled after
  * WireGuard's kernelspace implementation.
diff --git a/contrib/synergy/synergy-client.sh b/contrib/synergy/synergy-client.sh
index 997280a..de358ef 100755
--- a/contrib/synergy/synergy-client.sh
+++ b/contrib/synergy/synergy-client.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 set -ex
 if [[ $UID == 0 ]]; then
diff --git a/contrib/synergy/synergy-server.sh b/contrib/synergy/synergy-server.sh
index eb3a20f..e04b1f4 100755
--- a/contrib/synergy/synergy-server.sh
+++ b/contrib/synergy/synergy-server.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 set -ex
 if [[ $UID == 0 ]]; then
diff --git a/src/Makefile b/src/Makefile
index 4f3579f..483b703 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 PKG_CONFIG ?= pkg-config
 PREFIX ?= /usr
diff --git a/src/completion/wg-quick.bash-completion b/src/completion/wg-quick.bash-completion
index 7b14b75..1ec98d9 100644
--- a/src/completion/wg-quick.bash-completion
+++ b/src/completion/wg-quick.bash-completion
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 _wg_quick_completion() {
 	local p i a search_paths old_glob
diff --git a/src/completion/wg.bash-completion b/src/completion/wg.bash-completion
index 00ccfd3..cc6ac06 100644
--- a/src/completion/wg.bash-completion
+++ b/src/completion/wg.bash-completion
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 
 _wg_completion() {
 	local a
diff --git a/src/config.c b/src/config.c
index 1daa5ea..5d15356 100644
--- a/src/config.c
+++ b/src/config.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <arpa/inet.h>
diff --git a/src/config.h b/src/config.h
index 44f715a..9c31e8c 100644
--- a/src/config.h
+++ b/src/config.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef CONFIG_H
diff --git a/src/containers.h b/src/containers.h
index 619094e..2144052 100644
--- a/src/containers.h
+++ b/src/containers.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef CONTAINERS_H
diff --git a/src/curve25519.c b/src/curve25519.c
index c733a35..7949933 100644
--- a/src/curve25519.c
+++ b/src/curve25519.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2018-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include "curve25519.h"
diff --git a/src/curve25519.h b/src/curve25519.h
index ef0a09f..a5c3066 100644
--- a/src/curve25519.h
+++ b/src/curve25519.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef CURVE25519_H
diff --git a/src/encoding.c b/src/encoding.c
index d64b86e..efe004f 100644
--- a/src/encoding.c
+++ b/src/encoding.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * This is a specialized constant-time base64/hex implementation that resists side-channel attacks.
  */
diff --git a/src/encoding.h b/src/encoding.h
index 8815c33..f977ee9 100644
--- a/src/encoding.h
+++ b/src/encoding.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef ENCODING_H
diff --git a/src/genkey.c b/src/genkey.c
index e50d64b..65711e1 100644
--- a/src/genkey.c
+++ b/src/genkey.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <errno.h>
diff --git a/src/ipc.c b/src/ipc.c
index 5879109..da31eff 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifdef __linux__
diff --git a/src/ipc.h b/src/ipc.h
index e75be20..6c564be 100644
--- a/src/ipc.h
+++ b/src/ipc.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef IPC_H
diff --git a/src/mnlg.c b/src/mnlg.c
index 082f1a3..173e366 100644
--- a/src/mnlg.c
+++ b/src/mnlg.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * Original author: Jiri Pirko <jiri@mellanox.com>
  */
diff --git a/src/mnlg.h b/src/mnlg.h
index 1bc46c7..b5adbbc 100644
--- a/src/mnlg.h
+++ b/src/mnlg.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * Original author: Jiri Pirko <jiri@mellanox.com>
  */
diff --git a/src/pubkey.c b/src/pubkey.c
index 9741bcf..cbf1744 100644
--- a/src/pubkey.c
+++ b/src/pubkey.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <errno.h>
diff --git a/src/set.c b/src/set.c
index 9d84ccd..19f4b92 100644
--- a/src/set.c
+++ b/src/set.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <stdio.h>
diff --git a/src/setconf.c b/src/setconf.c
index 7135e85..8211ebd 100644
--- a/src/setconf.c
+++ b/src/setconf.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <stddef.h>
diff --git a/src/show.c b/src/show.c
index b50af2a..ba6f115 100644
--- a/src/show.c
+++ b/src/show.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <arpa/inet.h>
diff --git a/src/showconf.c b/src/showconf.c
index 777e022..ad76b7f 100644
--- a/src/showconf.c
+++ b/src/showconf.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <arpa/inet.h>
diff --git a/src/subcommands.h b/src/subcommands.h
index 2a7e36e..afac10a 100644
--- a/src/subcommands.h
+++ b/src/subcommands.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef SUBCOMMANDS_H
diff --git a/src/terminal.c b/src/terminal.c
index bee3a44..899d6ca 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <ctype.h>
diff --git a/src/terminal.h b/src/terminal.h
index 0994895..a824ad7 100644
--- a/src/terminal.h
+++ b/src/terminal.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #ifndef TERMINAL_H
diff --git a/src/wg-quick/android.c b/src/wg-quick/android.c
index e2b6abe..5eec36f 100644
--- a/src/wg-quick/android.c
+++ b/src/wg-quick/android.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  *
  * This is a shell script written in C. It very intentionally still functions like
  * a shell script, calling out to external executables such as ip(8).
diff --git a/src/wg-quick/darwin.bash b/src/wg-quick/darwin.bash
index 30f3541..bf07fdb 100755
--- a/src/wg-quick/darwin.bash
+++ b/src/wg-quick/darwin.bash
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 #
 
 set -e -o pipefail
diff --git a/src/wg-quick/freebsd.bash b/src/wg-quick/freebsd.bash
index c302a60..e83dbef 100755
--- a/src/wg-quick/freebsd.bash
+++ b/src/wg-quick/freebsd.bash
@@ -1,7 +1,7 @@
 #!/usr/local/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 #
 
 set -e -o pipefail
diff --git a/src/wg-quick/linux.bash b/src/wg-quick/linux.bash
index fd62316..84643c4 100755
--- a/src/wg-quick/linux.bash
+++ b/src/wg-quick/linux.bash
@@ -1,7 +1,7 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 #
 
 set -e -o pipefail
diff --git a/src/wg-quick/openbsd.bash b/src/wg-quick/openbsd.bash
index e0c6d1a..9996162 100755
--- a/src/wg-quick/openbsd.bash
+++ b/src/wg-quick/openbsd.bash
@@ -1,7 +1,7 @@
 #!/usr/local/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
-# Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 #
 
 set -e -o pipefail
diff --git a/src/wg.c b/src/wg.c
index 4c24ff0..550d9b4 100644
--- a/src/wg.c
+++ b/src/wg.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */
 
 #include <stddef.h>