diff --git a/README.md b/README.md
index cbcfb05..3b5cd31 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ $ make
 
 ## License
 
-    Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+    Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
     
     Permission is hereby granted, free of charge, to any person obtaining a copy of
     this software and associated documentation files (the "Software"), to deal in
diff --git a/conn/boundif_windows.go b/conn/boundif_windows.go
index fe38d05..53a8f09 100644
--- a/conn/boundif_windows.go
+++ b/conn/boundif_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package conn
diff --git a/conn/conn.go b/conn/conn.go
index 6b7db12..16311e4 100644
--- a/conn/conn.go
+++ b/conn/conn.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 // Package conn implements WireGuard's network connections.
diff --git a/conn/conn_default.go b/conn/conn_default.go
index bad9d4d..96ef137 100644
--- a/conn/conn_default.go
+++ b/conn/conn_default.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package conn
diff --git a/conn/conn_linux.go b/conn/conn_linux.go
index 523da4a..08c8949 100644
--- a/conn/conn_linux.go
+++ b/conn/conn_linux.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package conn
diff --git a/conn/mark_default.go b/conn/mark_default.go
index fc41ba9..f57215a 100644
--- a/conn/mark_default.go
+++ b/conn/mark_default.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package conn
diff --git a/conn/mark_unix.go b/conn/mark_unix.go
index 5334582..19ec2af 100644
--- a/conn/mark_unix.go
+++ b/conn/mark_unix.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package conn
diff --git a/device/allowedips.go b/device/allowedips.go
index efc27c0..143bda3 100644
--- a/device/allowedips.go
+++ b/device/allowedips.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/allowedips_rand_test.go b/device/allowedips_rand_test.go
index 59c10f7..3947830 100644
--- a/device/allowedips_rand_test.go
+++ b/device/allowedips_rand_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/allowedips_test.go b/device/allowedips_test.go
index 075ff06..005df48 100644
--- a/device/allowedips_test.go
+++ b/device/allowedips_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/bind_test.go b/device/bind_test.go
index c5f7f68..339adbe 100644
--- a/device/bind_test.go
+++ b/device/bind_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/bindsocketshim.go b/device/bindsocketshim.go
index c4dd4ef..c2555b8 100644
--- a/device/bindsocketshim.go
+++ b/device/bindsocketshim.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/boundif_android.go b/device/boundif_android.go
index 6d0fecf..a4be8de 100644
--- a/device/boundif_android.go
+++ b/device/boundif_android.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/constants.go b/device/constants.go
index 586ec9e..15cdac7 100644
--- a/device/constants.go
+++ b/device/constants.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/cookie.go b/device/cookie.go
index f134128..c658ca3 100644
--- a/device/cookie.go
+++ b/device/cookie.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/cookie_test.go b/device/cookie_test.go
index 79a6a86..7e4c362 100644
--- a/device/cookie_test.go
+++ b/device/cookie_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/device.go b/device/device.go
index a9fedea..11119f9 100644
--- a/device/device.go
+++ b/device/device.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/device_test.go b/device/device_test.go
index 87ecfc8..5ea5410 100644
--- a/device/device_test.go
+++ b/device/device_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/endpoint_test.go b/device/endpoint_test.go
index 1896790..e66d493 100644
--- a/device/endpoint_test.go
+++ b/device/endpoint_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/indextable.go b/device/indextable.go
index 4cba970..5e10eef 100644
--- a/device/indextable.go
+++ b/device/indextable.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/ip.go b/device/ip.go
index 9d4fb74..3bc6929 100644
--- a/device/ip.go
+++ b/device/ip.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/kdf_test.go b/device/kdf_test.go
index cb8dbab..1a3bc87 100644
--- a/device/kdf_test.go
+++ b/device/kdf_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/keypair.go b/device/keypair.go
index d70c7f4..2f2f222 100644
--- a/device/keypair.go
+++ b/device/keypair.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/logger.go b/device/logger.go
index 7c8b704..3c4d744 100644
--- a/device/logger.go
+++ b/device/logger.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/misc.go b/device/misc.go
index a38d1c1..30d1156 100644
--- a/device/misc.go
+++ b/device/misc.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/noise-helpers.go b/device/noise-helpers.go
index f5e4b4b..b3b5acf 100644
--- a/device/noise-helpers.go
+++ b/device/noise-helpers.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/noise-protocol.go b/device/noise-protocol.go
index e6f676c..be92b4b 100644
--- a/device/noise-protocol.go
+++ b/device/noise-protocol.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/noise-types.go b/device/noise-types.go
index a1976ff..f793ef5 100644
--- a/device/noise-types.go
+++ b/device/noise-types.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/noise_test.go b/device/noise_test.go
index b5d5845..ce89851 100644
--- a/device/noise_test.go
+++ b/device/noise_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/peer.go b/device/peer.go
index 899591b..d13acd9 100644
--- a/device/peer.go
+++ b/device/peer.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/peer_test.go b/device/peer_test.go
index b389f1e..6aa238b 100644
--- a/device/peer_test.go
+++ b/device/peer_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/pools.go b/device/pools.go
index 98f4ef1..e778d2e 100644
--- a/device/pools.go
+++ b/device/pools.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/queueconstants_android.go b/device/queueconstants_android.go
index f5c042d..f19c7be 100644
--- a/device/queueconstants_android.go
+++ b/device/queueconstants_android.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/queueconstants_default.go b/device/queueconstants_default.go
index cf86ba1..18f0bea 100644
--- a/device/queueconstants_default.go
+++ b/device/queueconstants_default.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/queueconstants_ios.go b/device/queueconstants_ios.go
index 589b0aa..4c83015 100644
--- a/device/queueconstants_ios.go
+++ b/device/queueconstants_ios.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/receive.go b/device/receive.go
index 4818d64..b53c9c0 100644
--- a/device/receive.go
+++ b/device/receive.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/send.go b/device/send.go
index 9e29d77..9be1233 100644
--- a/device/send.go
+++ b/device/send.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/sticky_linux.go b/device/sticky_linux.go
index f9522c2..1994a70 100644
--- a/device/sticky_linux.go
+++ b/device/sticky_linux.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  *
  * This implements userspace semantics of "sticky sockets", modeled after
  * WireGuard's kernelspace implementation. This is more or less a straight port
diff --git a/device/timers.go b/device/timers.go
index 18ee736..0232eef 100644
--- a/device/timers.go
+++ b/device/timers.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  *
  * This is based heavily on timers.c from the kernel implementation.
  */
diff --git a/device/tun.go b/device/tun.go
index 0a3fc79..1f88f33 100644
--- a/device/tun.go
+++ b/device/tun.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/tun_test.go b/device/tun_test.go
index 5614771..a2db2a5 100644
--- a/device/tun_test.go
+++ b/device/tun_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/device/uapi.go b/device/uapi.go
index 1080ca1..9f9c9bd 100644
--- a/device/uapi.go
+++ b/device/uapi.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package device
diff --git a/go.mod b/go.mod
index c2183e0..f264ea0 100644
--- a/go.mod
+++ b/go.mod
@@ -3,8 +3,8 @@ module golang.zx2c4.com/wireguard
 go 1.13
 
 require (
-	golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc
-	golang.org/x/net v0.0.0-20191003171128-d98b1b443823
-	golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527
+	golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79
+	golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5
+	golang.org/x/sys v0.0.0-20200501145240-bc7a7d42d5c3
 	golang.org/x/text v0.3.2
 )
diff --git a/go.sum b/go.sum
index be3d0cf..e6b8991 100644
--- a/go.sum
+++ b/go.sum
@@ -1,13 +1,14 @@
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc h1:c0o/qxkaO2LF5t6fQrT4b5hzyggAkLLlCUjqfRxd8Q4=
-golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79 h1:IaQbIIB2X/Mp/DKctl6ROxz1KyMlKp4uyvL6+kQ7C88=
+golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20191003171128-d98b1b443823 h1:Ypyv6BNJh07T1pUSrehkLemqPKXhus2MkfktJ91kRh4=
-golang.org/x/net v0.0.0-20191003171128-d98b1b443823/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5 h1:WQ8q63x+f/zpC8Ac1s9wLElVoHhm32p6tudrU72n1QA=
+golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
-golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200501145240-bc7a7d42d5c3 h1:5B6i6EAiSYyejWfvc5Rc9BbI3rzIsrrXfAQBWnYfn+w=
+golang.org/x/sys v0.0.0-20200501145240-bc7a7d42d5c3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
diff --git a/ipc/uapi_bsd.go b/ipc/uapi_bsd.go
index d552a5e..ee05cb7 100644
--- a/ipc/uapi_bsd.go
+++ b/ipc/uapi_bsd.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ipc
diff --git a/ipc/uapi_linux.go b/ipc/uapi_linux.go
index 70d4d0c..bda19e9 100644
--- a/ipc/uapi_linux.go
+++ b/ipc/uapi_linux.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ipc
diff --git a/ipc/uapi_unix.go b/ipc/uapi_unix.go
index a59c390..2e0813e 100644
--- a/ipc/uapi_unix.go
+++ b/ipc/uapi_unix.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ipc
diff --git a/ipc/uapi_windows.go b/ipc/uapi_windows.go
index ead0dc5..7fa4f38 100644
--- a/ipc/uapi_windows.go
+++ b/ipc/uapi_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ipc
diff --git a/ipc/winpipe/file.go b/ipc/winpipe/file.go
index 29d02a7..09f2f1c 100644
--- a/ipc/winpipe/file.go
+++ b/ipc/winpipe/file.go
@@ -3,7 +3,7 @@
 /* SPDX-License-Identifier: MIT
  *
  * Copyright (C) 2005 Microsoft
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 package winpipe
 
diff --git a/ipc/winpipe/mksyscall.go b/ipc/winpipe/mksyscall.go
index 19ac03a..3675af7 100644
--- a/ipc/winpipe/mksyscall.go
+++ b/ipc/winpipe/mksyscall.go
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: MIT
  *
  * Copyright (C) 2005 Microsoft
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package winpipe
diff --git a/ipc/winpipe/pipe.go b/ipc/winpipe/pipe.go
index 06b3037..c587227 100644
--- a/ipc/winpipe/pipe.go
+++ b/ipc/winpipe/pipe.go
@@ -3,7 +3,7 @@
 /* SPDX-License-Identifier: MIT
  *
  * Copyright (C) 2005 Microsoft
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package winpipe
diff --git a/main.go b/main.go
index 053f488..f9d9584 100644
--- a/main.go
+++ b/main.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package main
diff --git a/main_windows.go b/main_windows.go
index f57bc8d..291b00d 100644
--- a/main_windows.go
+++ b/main_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package main
diff --git a/ratelimiter/ratelimiter.go b/ratelimiter/ratelimiter.go
index a6d0ea2..a1dea61 100644
--- a/ratelimiter/ratelimiter.go
+++ b/ratelimiter/ratelimiter.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ratelimiter
diff --git a/ratelimiter/ratelimiter_test.go b/ratelimiter/ratelimiter_test.go
index 25d5d63..d1e93fe 100644
--- a/ratelimiter/ratelimiter_test.go
+++ b/ratelimiter/ratelimiter_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package ratelimiter
diff --git a/replay/replay.go b/replay/replay.go
index 0f6b6c9..034273c 100644
--- a/replay/replay.go
+++ b/replay/replay.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package replay
diff --git a/replay/replay_test.go b/replay/replay_test.go
index 5365f10..ceae2f3 100644
--- a/replay/replay_test.go
+++ b/replay/replay_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package replay
diff --git a/rwcancel/fdset.go b/rwcancel/fdset.go
index 91bd757..36d0fec 100644
--- a/rwcancel/fdset.go
+++ b/rwcancel/fdset.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package rwcancel
diff --git a/rwcancel/rwcancel.go b/rwcancel/rwcancel.go
index 3c4a9ed..f91a1bf 100644
--- a/rwcancel/rwcancel.go
+++ b/rwcancel/rwcancel.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 // Package rwcancel implements cancelable read/write operations on
diff --git a/rwcancel/select_default.go b/rwcancel/select_default.go
index 82e07dc..8cb45d8 100644
--- a/rwcancel/select_default.go
+++ b/rwcancel/select_default.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package rwcancel
diff --git a/rwcancel/select_linux.go b/rwcancel/select_linux.go
index 1a72e0a..204d04a 100644
--- a/rwcancel/select_linux.go
+++ b/rwcancel/select_linux.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package rwcancel
diff --git a/tai64n/tai64n.go b/tai64n/tai64n.go
index 565aaa4..fb32d0c 100644
--- a/tai64n/tai64n.go
+++ b/tai64n/tai64n.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tai64n
diff --git a/tai64n/tai64n_test.go b/tai64n/tai64n_test.go
index 859660f..05a9d8f 100644
--- a/tai64n/tai64n_test.go
+++ b/tai64n/tai64n_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tai64n
diff --git a/tun/operateonfd.go b/tun/operateonfd.go
index 31747a2..ed7e633 100644
--- a/tun/operateonfd.go
+++ b/tun/operateonfd.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun.go b/tun/tun.go
index 5395bdb..4f6848f 100644
--- a/tun/tun.go
+++ b/tun/tun.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun_darwin.go b/tun/tun_darwin.go
index f19a7df..52b4070 100644
--- a/tun/tun_darwin.go
+++ b/tun/tun_darwin.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun_freebsd.go b/tun/tun_freebsd.go
index 6cf9313..c312219 100644
--- a/tun/tun_freebsd.go
+++ b/tun/tun_freebsd.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun_linux.go b/tun/tun_linux.go
index 179635a..791e0be 100644
--- a/tun/tun_linux.go
+++ b/tun/tun_linux.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun_openbsd.go b/tun/tun_openbsd.go
index 44cedaa..2003420 100644
--- a/tun/tun_openbsd.go
+++ b/tun/tun_openbsd.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tun_windows.go b/tun/tun_windows.go
index b16dbb7..5a52c56 100644
--- a/tun/tun_windows.go
+++ b/tun/tun_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2018-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tun
diff --git a/tun/tuntest/tuntest.go b/tun/tuntest/tuntest.go
index bdd96ac..e94c6d8 100644
--- a/tun/tuntest/tuntest.go
+++ b/tun/tuntest/tuntest.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
  */
 
 package tuntest
diff --git a/tun/wintun/iphlpapi/conversion_windows.go b/tun/wintun/iphlpapi/conversion_windows.go
index a19e961..d2db8a3 100644
--- a/tun/wintun/iphlpapi/conversion_windows.go
+++ b/tun/wintun/iphlpapi/conversion_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package iphlpapi
diff --git a/tun/wintun/iphlpapi/mksyscall.go b/tun/wintun/iphlpapi/mksyscall.go
index fc7dba4..8ffc0d4 100644
--- a/tun/wintun/iphlpapi/mksyscall.go
+++ b/tun/wintun/iphlpapi/mksyscall.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package iphlpapi
diff --git a/tun/wintun/namespace_windows.go b/tun/wintun/namespace_windows.go
index 5f8a041..302ad45 100644
--- a/tun/wintun/namespace_windows.go
+++ b/tun/wintun/namespace_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package wintun
diff --git a/tun/wintun/namespaceapi/mksyscall.go b/tun/wintun/namespaceapi/mksyscall.go
index 93d43b0..8ea3085 100644
--- a/tun/wintun/namespaceapi/mksyscall.go
+++ b/tun/wintun/namespaceapi/mksyscall.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package namespaceapi
diff --git a/tun/wintun/namespaceapi/namespaceapi_windows.go b/tun/wintun/namespaceapi/namespaceapi_windows.go
index a3a6274..e71077c 100644
--- a/tun/wintun/namespaceapi/namespaceapi_windows.go
+++ b/tun/wintun/namespaceapi/namespaceapi_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package namespaceapi
diff --git a/tun/wintun/nci/mksyscall.go b/tun/wintun/nci/mksyscall.go
index 019da93..129e015 100644
--- a/tun/wintun/nci/mksyscall.go
+++ b/tun/wintun/nci/mksyscall.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package nci
diff --git a/tun/wintun/nci/nci_windows.go b/tun/wintun/nci/nci_windows.go
index 9dc6699..dc9733c 100644
--- a/tun/wintun/nci/nci_windows.go
+++ b/tun/wintun/nci/nci_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package nci
diff --git a/tun/wintun/registry/mksyscall.go b/tun/wintun/registry/mksyscall.go
index 6ad82d2..3e9ff1f 100644
--- a/tun/wintun/registry/mksyscall.go
+++ b/tun/wintun/registry/mksyscall.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package registry
diff --git a/tun/wintun/registry/registry_windows.go b/tun/wintun/registry/registry_windows.go
index 12a0336..6be88fd 100644
--- a/tun/wintun/registry/registry_windows.go
+++ b/tun/wintun/registry/registry_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package registry
diff --git a/tun/wintun/registry/registry_windows_test.go b/tun/wintun/registry/registry_windows_test.go
index c56b51b..2479b3d 100644
--- a/tun/wintun/registry/registry_windows_test.go
+++ b/tun/wintun/registry/registry_windows_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package registry
diff --git a/tun/wintun/ring_windows.go b/tun/wintun/ring_windows.go
index 8e6b375..4d2fab6 100644
--- a/tun/wintun/ring_windows.go
+++ b/tun/wintun/ring_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package wintun
diff --git a/tun/wintun/setupapi/mksyscall.go b/tun/wintun/setupapi/mksyscall.go
index ac103a1..234851c 100644
--- a/tun/wintun/setupapi/mksyscall.go
+++ b/tun/wintun/setupapi/mksyscall.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/setupapi_windows.go b/tun/wintun/setupapi/setupapi_windows.go
index 60a8eb7..a804dd8 100644
--- a/tun/wintun/setupapi/setupapi_windows.go
+++ b/tun/wintun/setupapi/setupapi_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/setupapi_windows_test.go b/tun/wintun/setupapi/setupapi_windows_test.go
index a9e6b89..b0afbc7 100644
--- a/tun/wintun/setupapi/setupapi_windows_test.go
+++ b/tun/wintun/setupapi/setupapi_windows_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/types32_windows.go b/tun/wintun/setupapi/types32_windows.go
index bacde58..0eaead6 100644
--- a/tun/wintun/setupapi/types32_windows.go
+++ b/tun/wintun/setupapi/types32_windows.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/types64_windows.go b/tun/wintun/setupapi/types64_windows.go
index d5c8b37..c815b8f 100644
--- a/tun/wintun/setupapi/types64_windows.go
+++ b/tun/wintun/setupapi/types64_windows.go
@@ -2,7 +2,7 @@
 
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/types_windows.go b/tun/wintun/setupapi/types_windows.go
index 239d80b..43e3f39 100644
--- a/tun/wintun/setupapi/types_windows.go
+++ b/tun/wintun/setupapi/types_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/setupapi/zsetupapi_windows_test.go b/tun/wintun/setupapi/zsetupapi_windows_test.go
index 915b427..5b5f369 100644
--- a/tun/wintun/setupapi/zsetupapi_windows_test.go
+++ b/tun/wintun/setupapi/zsetupapi_windows_test.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package setupapi
diff --git a/tun/wintun/wintun_windows.go b/tun/wintun/wintun_windows.go
index 3aada08..eed4f01 100644
--- a/tun/wintun/wintun_windows.go
+++ b/tun/wintun/wintun_windows.go
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: MIT
  *
- * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
  */
 
 package wintun