diff --git a/docs/asciidoc-git.conf b/docs/asciidoc-git.conf
index 3d42bca8..36bdb6f5 100644
--- a/docs/asciidoc-git.conf
+++ b/docs/asciidoc-git.conf
@@ -647,7 +647,7 @@ endif::doctype-manpage[]
 </div>
 {disable-javascript%<div id="footnotes"><hr /></div>}
 <div id="footer" lang="de">
-© 2009-2014 Michael Stapelberg, <a href="http://i3wm.org/impress.html">Impressum</a>
+© 2009 Michael Stapelberg, <a href="http://i3wm.org/impress.html">Impressum</a>
 </div>
 </body>
 </html>
diff --git a/generate-command-parser.pl b/generate-command-parser.pl
index 9b5ef562..f40bb390 100755
--- a/generate-command-parser.pl
+++ b/generate-command-parser.pl
@@ -2,7 +2,7 @@
 # vim:ts=4:sw=4:expandtab
 #
 # i3 - an improved dynamic tiling window manager
-# © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+# © 2009 Michael Stapelberg and contributors (see also: LICENSE)
 #
 # generate-command-parser.pl: script to generate parts of the command parser
 # from its specification file parser-specs/commands.spec.
diff --git a/i3-config-wizard/main.c b/i3-config-wizard/main.c
index 9c9241cd..4c1d9697 100644
--- a/i3-config-wizard/main.c
+++ b/i3-config-wizard/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3-config-wizard: Program to convert configs using keycodes to configs using
  *                   keysyms.
diff --git a/i3-dmenu-desktop b/i3-dmenu-desktop
index cc72f101..a0549ead 100755
--- a/i3-dmenu-desktop
+++ b/i3-dmenu-desktop
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 # vim:ts=4:sw=4:expandtab
 #
-# © 2012-2014 Michael Stapelberg
+# © 2012 Michael Stapelberg
 #
 # No dependencies except for perl ≥ v5.10
 
@@ -45,7 +45,7 @@ my $result = GetOptions(
     'dmenu=s' => \$dmenu_cmd,
     'entry-type=s' => \@entry_types,
     'version' => sub {
-        say "dmenu-desktop 1.5 © 2012-2013 Michael Stapelberg";
+        say "dmenu-desktop 1.5 © 2012 Michael Stapelberg";
         exit 0;
     },
     'help' => sub {
diff --git a/i3-dump-log/main.c b/i3-dump-log/main.c
index 1b0d593c..137554a4 100644
--- a/i3-dump-log/main.c
+++ b/i3-dump-log/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3-dump-log/main.c: Dumps the i3 SHM log to stdout.
  *
diff --git a/i3-input/main.c b/i3-input/main.c
index b32d7b66..5a6a740e 100644
--- a/i3-input/main.c
+++ b/i3-input/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3-input/main.c: Utility which lets the user input commands and sends them
  *                  to i3.
diff --git a/i3-msg/main.c b/i3-msg/main.c
index 354e8af9..6a6186d8 100644
--- a/i3-msg/main.c
+++ b/i3-msg/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3-msg/main.c: Utility which sends messages to a running i3-instance using
  * IPC via UNIX domain sockets.
diff --git a/i3-nagbar/main.c b/i3-nagbar/main.c
index 83389b34..d93c6585 100644
--- a/i3-nagbar/main.c
+++ b/i3-nagbar/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3-nagbar is a utility which displays a nag message, for example in the case
  * when the user has an error in their configuration file.
diff --git a/i3-save-tree b/i3-save-tree
index 289fd8c6..18a1a380 100755
--- a/i3-save-tree
+++ b/i3-save-tree
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
 # vim:ts=4:sw=4:expandtab
 #
-# © 2013-2014 Michael Stapelberg
+# © 2013 Michael Stapelberg
 #
 # Requires perl ≥ v5.10, AnyEvent::I3 and JSON::XS
 
diff --git a/i3bar/include/child.h b/i3bar/include/child.h
index b87cfaac..873a3465 100644
--- a/i3bar/include/child.h
+++ b/i3bar/include/child.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * child.c: Getting input for the statusline
  *
diff --git a/i3bar/include/common.h b/i3bar/include/common.h
index 22b9a28a..90da9388 100644
--- a/i3bar/include/common.h
+++ b/i3bar/include/common.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  */
 #pragma once
diff --git a/i3bar/include/config.h b/i3bar/include/config.h
index fdc37445..aeb9f0fd 100644
--- a/i3bar/include/config.h
+++ b/i3bar/include/config.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * config.c: Parses the configuration (received from i3).
  *
diff --git a/i3bar/include/ipc.h b/i3bar/include/ipc.h
index a60a1eba..686c0322 100644
--- a/i3bar/include/ipc.h
+++ b/i3bar/include/ipc.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * ipc.c: Communicating with i3
  *
diff --git a/i3bar/include/mode.h b/i3bar/include/mode.h
index 37e8e017..828d4906 100644
--- a/i3bar/include/mode.h
+++ b/i3bar/include/mode.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * mode.c: Handle "mode" event and show current binding mode in the bar
  *
diff --git a/i3bar/include/outputs.h b/i3bar/include/outputs.h
index 73fbf33f..e6605e1f 100644
--- a/i3bar/include/outputs.h
+++ b/i3bar/include/outputs.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * outputs.c: Maintaining the outputs list
  *
diff --git a/i3bar/include/parse_json_header.h b/i3bar/include/parse_json_header.h
index ef13cf78..41e97de2 100644
--- a/i3bar/include/parse_json_header.h
+++ b/i3bar/include/parse_json_header.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * parse_json_header.c: Parse the JSON protocol header to determine
  *                      protocol version and features.
diff --git a/i3bar/include/trayclients.h b/i3bar/include/trayclients.h
index 1720ec3b..694faa48 100644
--- a/i3bar/include/trayclients.h
+++ b/i3bar/include/trayclients.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  */
 #pragma once
diff --git a/i3bar/include/util.h b/i3bar/include/util.h
index ac137998..ba08cf76 100644
--- a/i3bar/include/util.h
+++ b/i3bar/include/util.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #pragma once
diff --git a/i3bar/include/workspaces.h b/i3bar/include/workspaces.h
index 1b8c6c72..5ed84de8 100644
--- a/i3bar/include/workspaces.h
+++ b/i3bar/include/workspaces.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * workspaces.c: Maintaining the workspace lists
  *
diff --git a/i3bar/include/xcb.h b/i3bar/include/xcb.h
index bb37e7d5..2e34c776 100644
--- a/i3bar/include/xcb.h
+++ b/i3bar/include/xcb.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * xcb.c: Communicating with X
  *
diff --git a/i3bar/src/child.c b/i3bar/src/child.c
index 41f8880d..e5ce209d 100644
--- a/i3bar/src/child.c
+++ b/i3bar/src/child.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * child.c: Getting input for the statusline
  *
diff --git a/i3bar/src/config.c b/i3bar/src/config.c
index f7abaee7..86f66cbb 100644
--- a/i3bar/src/config.c
+++ b/i3bar/src/config.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2011 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * config.c: Parses the configuration (received from i3).
  *
diff --git a/i3bar/src/ipc.c b/i3bar/src/ipc.c
index 15a26d7b..eb48afea 100644
--- a/i3bar/src/ipc.c
+++ b/i3bar/src/ipc.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * ipc.c: Communicating with i3
  *
diff --git a/i3bar/src/main.c b/i3bar/src/main.c
index a9a972db..32425319 100644
--- a/i3bar/src/main.c
+++ b/i3bar/src/main.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  */
 #include <stdio.h>
@@ -111,7 +111,7 @@ int main(int argc, char **argv) {
                 socket_path = expand_path(optarg);
                 break;
             case 'v':
-                printf("i3bar version " I3_VERSION " © 2010-2014 Axel Wagner and contributors\n");
+                printf("i3bar version " I3_VERSION " © 2010 Axel Wagner and contributors\n");
                 exit(EXIT_SUCCESS);
                 break;
             case 'b':
diff --git a/i3bar/src/mode.c b/i3bar/src/mode.c
index 0ff8ba4f..bae08913 100644
--- a/i3bar/src/mode.c
+++ b/i3bar/src/mode.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * mode.c: Handle mode event and show current binding mode in the bar
  *
diff --git a/i3bar/src/outputs.c b/i3bar/src/outputs.c
index 8f5c95dc..b49ff53f 100644
--- a/i3bar/src/outputs.c
+++ b/i3bar/src/outputs.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * outputs.c: Maintaining the outputs list
  *
diff --git a/i3bar/src/parse_json_header.c b/i3bar/src/parse_json_header.c
index f5fb84ab..1cd95106 100644
--- a/i3bar/src/parse_json_header.c
+++ b/i3bar/src/parse_json_header.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * parse_json_header.c: Parse the JSON protocol header to determine
  *                      protocol version and features.
diff --git a/i3bar/src/workspaces.c b/i3bar/src/workspaces.c
index e3032526..773f8f54 100644
--- a/i3bar/src/workspaces.c
+++ b/i3bar/src/workspaces.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * workspaces.c: Maintaining the workspace lists
  *
diff --git a/i3bar/src/xcb.c b/i3bar/src/xcb.c
index ba57b9fa..fd268e91 100644
--- a/i3bar/src/xcb.c
+++ b/i3bar/src/xcb.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3bar - an xcb-based status- and ws-bar for i3
- * © 2010-2012 Axel Wagner and contributors (see also: LICENSE)
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
  *
  * xcb.c: Communicating with X
  *
diff --git a/include/all.h b/include/all.h
index a355d3d2..85397d59 100644
--- a/include/all.h
+++ b/include/all.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * This header file includes all relevant files of i3 and the most often used
  * system header files. This reduces boilerplate (the amount of code duplicated
diff --git a/include/assignments.h b/include/assignments.h
index b83ee03f..22ebafc3 100644
--- a/include/assignments.h
+++ b/include/assignments.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * assignments.c: Assignments for specific windows (for_window).
  *
diff --git a/include/bindings.h b/include/bindings.h
index c20152e9..75a719e9 100644
--- a/include/bindings.h
+++ b/include/bindings.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2014 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * bindings.h: Functions for configuring, finding, and running bindings.
  *
diff --git a/include/click.h b/include/click.h
index c63672a7..7ce80d97 100644
--- a/include/click.h
+++ b/include/click.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * click.c: Button press (mouse click) events.
  *
diff --git a/include/cmdparse.h b/include/cmdparse.h
index 263801f6..2ffa49b0 100644
--- a/include/cmdparse.h
+++ b/include/cmdparse.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * cmdparse.y: the parser for commands you send to i3 (or bind on keys)
  *
diff --git a/include/commands.h b/include/commands.h
index ccb555a4..bbcd7f6f 100644
--- a/include/commands.h
+++ b/include/commands.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * commands.c: all command functions (see commands_parser.c)
  *
diff --git a/include/commands_parser.h b/include/commands_parser.h
index cfa44dd5..1acb7fae 100644
--- a/include/commands_parser.h
+++ b/include/commands_parser.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * commands.c: all command functions (see commands_parser.c)
  *
diff --git a/include/con.h b/include/con.h
index 4ee3fb7d..498fcbaa 100644
--- a/include/con.h
+++ b/include/con.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * con.c: Functions which deal with containers directly (creating containers,
  *        searching containers, getting specific properties from containers,
diff --git a/include/config.h b/include/config.h
index fb11cbe3..4cc58a45 100644
--- a/include/config.h
+++ b/include/config.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * include/config.h: Contains all structs/variables for the configurable
  * part of i3 as well as functions handling the configuration file (calling
diff --git a/include/config_directives.h b/include/config_directives.h
index e24c834b..019b9bcd 100644
--- a/include/config_directives.h
+++ b/include/config_directives.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * config_directives.h: all config storing functions (see config_parser.c)
  *
diff --git a/include/config_parser.h b/include/config_parser.h
index 9fc3bf2f..28c28e48 100644
--- a/include/config_parser.h
+++ b/include/config_parser.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * config_parser.h: config parser-related definitions
  *
diff --git a/include/data.h b/include/data.h
index 43862263..75bff3a2 100644
--- a/include/data.h
+++ b/include/data.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * include/data.h: This file defines all data structures used by i3
  *
diff --git a/include/debug.h b/include/debug.h
index 3e65c35e..3875ec6b 100644
--- a/include/debug.h
+++ b/include/debug.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * debug.c: Debugging functions, especially FormatEvent, which prints unhandled
  *          events.  This code is from xcb-util.
diff --git a/include/display_version.h b/include/display_version.h
index 6f88ae97..b1a5a0e0 100644
--- a/include/display_version.h
+++ b/include/display_version.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * display_version.c: displays the running i3 version, runs as part of
  *                    i3 --moreversion.
diff --git a/include/ewmh.h b/include/ewmh.h
index 3b580628..8fb7902a 100644
--- a/include/ewmh.h
+++ b/include/ewmh.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * ewmh.c: Get/set certain EWMH properties easily.
  *
diff --git a/include/fake_outputs.h b/include/fake_outputs.h
index 75ef77ba..32b07fa9 100644
--- a/include/fake_outputs.h
+++ b/include/fake_outputs.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * Faking outputs is useful in pathological situations (like network X servers
  * which don’t support multi-monitor in a useful way) and for our testsuite.
diff --git a/include/floating.h b/include/floating.h
index 8330b6ac..5e7b8e31 100644
--- a/include/floating.h
+++ b/include/floating.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * floating.c: Floating windows.
  *
diff --git a/include/handlers.h b/include/handlers.h
index 82f6b982..d80a24f8 100644
--- a/include/handlers.h
+++ b/include/handlers.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * handlers.c: Small handlers for various events (keypresses, focus changes,
  *             …).
diff --git a/include/i3.h b/include/i3.h
index 70ebc000..f1912fd5 100644
--- a/include/i3.h
+++ b/include/i3.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * i3.h: global variables that are used all over i3.
  *
diff --git a/include/i3/ipc.h b/include/i3/ipc.h
index f1b50dec..8912bf13 100644
--- a/include/i3/ipc.h
+++ b/include/i3/ipc.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * This public header defines the different constants and message types to use
  * for the IPC interface to i3 (see docs/ipc for more information).
diff --git a/include/ipc.h b/include/ipc.h
index 4eed319a..e1c18816 100644
--- a/include/ipc.h
+++ b/include/ipc.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * ipc.c: UNIX domain socket IPC (initialization, client handling, protocol).
  *
diff --git a/include/key_press.h b/include/key_press.h
index 86cc6836..bbfec83b 100644
--- a/include/key_press.h
+++ b/include/key_press.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * key_press.c: key press handler
  *
diff --git a/include/libi3.h b/include/libi3.h
index da8c8a42..a64b3981 100644
--- a/include/libi3.h
+++ b/include/libi3.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * libi3: contains functions which are used by i3 *and* accompanying tools such
  * as i3-msg, i3-config-wizard, …
diff --git a/include/load_layout.h b/include/load_layout.h
index 8736a50c..f8b7da20 100644
--- a/include/load_layout.h
+++ b/include/load_layout.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2014 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * load_layout.c: Restore (parts of) the layout, for example after an inplace
  *                restart.
diff --git a/include/log.h b/include/log.h
index a5086dbe..e7fc8acb 100644
--- a/include/log.h
+++ b/include/log.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * log.c: Logging functions.
  *
diff --git a/include/main.h b/include/main.h
index 18c6e374..1ce53954 100644
--- a/include/main.h
+++ b/include/main.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * main.c: Initialization, main loop
  *
diff --git a/include/manage.h b/include/manage.h
index bd1a14f7..b0c42381 100644
--- a/include/manage.h
+++ b/include/manage.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * manage.c: Initially managing new windows (or existing ones on restart).
  *
diff --git a/include/match.h b/include/match.h
index 09975cac..dbd9bb79 100644
--- a/include/match.h
+++ b/include/match.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * A "match" is a data structure which acts like a mask or expression to match
  * certain windows or not. For example, when using commands, you can specify a
diff --git a/include/move.h b/include/move.h
index 939665ec..7debcf28 100644
--- a/include/move.h
+++ b/include/move.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * move.c: Moving containers into some direction.
  *
diff --git a/include/output.h b/include/output.h
index 6514c477..e0125c06 100644
--- a/include/output.h
+++ b/include/output.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * output.c: Output (monitor) related functions.
  *
diff --git a/include/randr.h b/include/randr.h
index 43f7efe8..823ddea4 100644
--- a/include/randr.h
+++ b/include/randr.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * For more information on RandR, please see the X.org RandR specification at
  * http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt
diff --git a/include/regex.h b/include/regex.h
index e11d377e..2e2f22fd 100644
--- a/include/regex.h
+++ b/include/regex.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * regex.c: Interface to libPCRE (perl compatible regular expressions).
  *
diff --git a/include/render.h b/include/render.h
index 1794b513..717459e9 100644
--- a/include/render.h
+++ b/include/render.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * render.c: Renders (determines position/sizes) the layout tree, updating the
  *           various rects. Needs to be pushed to X11 (see x.c) to be visible.
diff --git a/include/resize.h b/include/resize.h
index 5c795046..945678d9 100644
--- a/include/resize.h
+++ b/include/resize.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * resize.c: Interactive resizing.
  *
diff --git a/include/restore_layout.h b/include/restore_layout.h
index 3f0229d3..f952834c 100644
--- a/include/restore_layout.h
+++ b/include/restore_layout.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * restore_layout.c: Everything for restored containers that is not pure state
  *                   parsing (which can be found in load_layout.c).
diff --git a/include/scratchpad.h b/include/scratchpad.h
index 1aca73bd..b385550c 100644
--- a/include/scratchpad.h
+++ b/include/scratchpad.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * scratchpad.c: Scratchpad functions (TODO: more description)
  *
diff --git a/include/shmlog.h b/include/shmlog.h
index 5af697e7..231681ca 100644
--- a/include/shmlog.h
+++ b/include/shmlog.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * The format of the shmlog data structure which i3 development versions use by
  * default (ringbuffer for storing the debug log).
diff --git a/include/sighandler.h b/include/sighandler.h
index 184db73b..56680bc4 100644
--- a/include/sighandler.h
+++ b/include/sighandler.h
@@ -2,8 +2,8 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
- * © 2009-2010 Jan-Erik Rediger
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Jan-Erik Rediger
  *
  * sighandler.c: Interactive crash dialog upon SIGSEGV/SIGABRT/SIGFPE (offers
  *               to restart inplace).
diff --git a/include/startup.h b/include/startup.h
index cb784913..7d5d2a39 100644
--- a/include/startup.h
+++ b/include/startup.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * startup.c: Startup notification code. Ensures a startup notification context
  *            is setup when launching applications. We store the current
diff --git a/include/tree.h b/include/tree.h
index b3c2a515..af3309e9 100644
--- a/include/tree.h
+++ b/include/tree.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * tree.c: Everything that primarily modifies the layout tree data structure.
  *
diff --git a/include/util.h b/include/util.h
index 270b2f22..01f732ca 100644
--- a/include/util.h
+++ b/include/util.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * util.c: Utility functions, which can be useful everywhere within i3 (see
  *         also libi3).
diff --git a/include/window.h b/include/window.h
index 480cee18..5f8b933b 100644
--- a/include/window.h
+++ b/include/window.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * window.c: Updates window attributes (X11 hints/properties).
  *
diff --git a/include/workspace.h b/include/workspace.h
index d0f801e0..82d18919 100644
--- a/include/workspace.h
+++ b/include/workspace.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * workspace.c: Modifying workspaces, accessing them, moving containers to
  *              workspaces.
diff --git a/include/x.h b/include/x.h
index 07f8a725..b6855cb3 100644
--- a/include/x.h
+++ b/include/x.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * x.c: Interface to X11, transfers our in-memory state to X11 (see also
  *      render.c). Basically a big state machine.
diff --git a/include/xcb.h b/include/xcb.h
index 9f4ea91f..1928d76a 100644
--- a/include/xcb.h
+++ b/include/xcb.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * xcb.c: Helper functions for easier usage of XCB
  *
diff --git a/include/xcb_compat.h b/include/xcb_compat.h
index 89c2c457..066d834a 100644
--- a/include/xcb_compat.h
+++ b/include/xcb_compat.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * xcb_compat.h: uses #define to create aliases for xcb functions which got
  *               renamed. Makes the code work with >= 0.3.8 xcb-util and
diff --git a/include/xcursor.h b/include/xcursor.h
index bb329e4c..e0ee9813 100644
--- a/include/xcursor.h
+++ b/include/xcursor.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * xcursor.c: libXcursor support for themed cursors.
  *
diff --git a/include/xinerama.h b/include/xinerama.h
index 46c2a635..936b9653 100644
--- a/include/xinerama.h
+++ b/include/xinerama.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * This is LEGACY code (we support RandR, which can do much more than
  * Xinerama), but necessary for the poor users of the nVidia binary
diff --git a/include/yajl_utils.h b/include/yajl_utils.h
index e8422aab..93c63d8f 100644
--- a/include/yajl_utils.h
+++ b/include/yajl_utils.h
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * yajl_utils.h
  *
diff --git a/libi3/dpi.c b/libi3/dpi.c
index 6f58d57a..a347b08f 100644
--- a/libi3/dpi.c
+++ b/libi3/dpi.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2014 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include "libi3.h"
diff --git a/libi3/fake_configure_notify.c b/libi3/fake_configure_notify.c
index 2c0f5771..225577a4 100644
--- a/libi3/fake_configure_notify.c
+++ b/libi3/fake_configure_notify.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <stdlib.h>
diff --git a/libi3/font.c b/libi3/font.c
index 847bc61b..0f30e74e 100644
--- a/libi3/font.c
+++ b/libi3/font.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <assert.h>
diff --git a/libi3/get_colorpixel.c b/libi3/get_colorpixel.c
index b093594e..44ad295d 100644
--- a/libi3/get_colorpixel.c
+++ b/libi3/get_colorpixel.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <stdlib.h>
diff --git a/libi3/get_config_path.c b/libi3/get_config_path.c
index 8b6eeb7c..bad75c4d 100644
--- a/libi3/get_config_path.c
+++ b/libi3/get_config_path.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2015 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include "libi3.h"
diff --git a/libi3/get_mod_mask.c b/libi3/get_mod_mask.c
index cf8cbe38..3b6976ad 100644
--- a/libi3/get_mod_mask.c
+++ b/libi3/get_mod_mask.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <stdint.h>
diff --git a/libi3/get_process_filename.c b/libi3/get_process_filename.c
index 941d4439..a3dee9cd 100644
--- a/libi3/get_process_filename.c
+++ b/libi3/get_process_filename.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <assert.h>
diff --git a/libi3/get_visualtype.c b/libi3/get_visualtype.c
index d11722f0..ccf266db 100644
--- a/libi3/get_visualtype.c
+++ b/libi3/get_visualtype.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include "libi3.h"
diff --git a/libi3/ipc_connect.c b/libi3/ipc_connect.c
index 69629daa..f493b4f1 100644
--- a/libi3/ipc_connect.c
+++ b/libi3/ipc_connect.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <sys/types.h>
diff --git a/libi3/ipc_recv_message.c b/libi3/ipc_recv_message.c
index cb4edd67..0ef4fced 100644
--- a/libi3/ipc_recv_message.c
+++ b/libi3/ipc_recv_message.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <string.h>
diff --git a/libi3/ipc_send_message.c b/libi3/ipc_send_message.c
index 80709ed3..a9ba3165 100644
--- a/libi3/ipc_send_message.c
+++ b/libi3/ipc_send_message.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <string.h>
diff --git a/libi3/resolve_tilde.c b/libi3/resolve_tilde.c
index a4e82873..3a56cbea 100644
--- a/libi3/resolve_tilde.c
+++ b/libi3/resolve_tilde.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2015 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 
diff --git a/libi3/root_atom_contents.c b/libi3/root_atom_contents.c
index f70c31a7..df54ef09 100644
--- a/libi3/root_atom_contents.c
+++ b/libi3/root_atom_contents.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <stdio.h>
diff --git a/libi3/safewrappers.c b/libi3/safewrappers.c
index db9b6b4a..74460f37 100644
--- a/libi3/safewrappers.c
+++ b/libi3/safewrappers.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <string.h>
diff --git a/libi3/string.c b/libi3/string.c
index e6297f9e..28575e1f 100644
--- a/libi3/string.c
+++ b/libi3/string.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * string.c: Define an i3String type to automagically handle UTF-8/UCS-2
  *           conversions. Some font backends need UCS-2 (X core fonts),
diff --git a/libi3/strndup.c b/libi3/strndup.c
index eec1a0ed..c4032dc5 100644
--- a/libi3/strndup.c
+++ b/libi3/strndup.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <sys/types.h>
diff --git a/libi3/ucs2_conversion.c b/libi3/ucs2_conversion.c
index 9a8c478f..3a7d0194 100644
--- a/libi3/ucs2_conversion.c
+++ b/libi3/ucs2_conversion.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  */
 #include <err.h>
diff --git a/parser-specs/commands.spec b/parser-specs/commands.spec
index 8fe1f569..297da145 100644
--- a/parser-specs/commands.spec
+++ b/parser-specs/commands.spec
@@ -1,7 +1,7 @@
 # vim:ts=2:sw=2:expandtab
 #
 # i3 - an improved dynamic tiling window manager
-# © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+# © 2009 Michael Stapelberg and contributors (see also: LICENSE)
 #
 # parser-specs/commands.spec: Specification file for generate-command-parser.pl
 # which will generate the appropriate header files for our C parser.
diff --git a/parser-specs/config.spec b/parser-specs/config.spec
index da534a38..72bea3b8 100644
--- a/parser-specs/config.spec
+++ b/parser-specs/config.spec
@@ -1,7 +1,7 @@
 # vim:ts=2:sw=2:expandtab
 #
 # i3 - an improved dynamic tiling window manager
-# © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+# © 2009 Michael Stapelberg and contributors (see also: LICENSE)
 #
 # parser-specs/config.spec: Specification file for generate-command-parser.pl
 # which will generate the appropriate header files for our C parser.
diff --git a/src/assignments.c b/src/assignments.c
index 96834f64..babe890e 100644
--- a/src/assignments.c
+++ b/src/assignments.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * assignments.c: Assignments for specific windows (for_window).
  *
diff --git a/src/bindings.c b/src/bindings.c
index e83e0acc..a0ca0498 100644
--- a/src/bindings.c
+++ b/src/bindings.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2014 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * bindings.c: Functions for configuring, finding and, running bindings.
  */
diff --git a/src/click.c b/src/click.c
index 40884c34..690bd1f8 100644
--- a/src/click.c
+++ b/src/click.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * click.c: Button press (mouse click) events.
  *
diff --git a/src/commands.c b/src/commands.c
index adfffe5f..2a9e3765 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * commands.c: all command functions (see commands_parser.c)
  *
diff --git a/src/commands_parser.c b/src/commands_parser.c
index fa4c2360..9ae75abe 100644
--- a/src/commands_parser.c
+++ b/src/commands_parser.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * commands_parser.c: hand-written parser to parse commands (commands are what
  * you bind on keys and what you can send to i3 using the IPC interface, like
diff --git a/src/con.c b/src/con.c
index 622b7ad5..aefe756c 100644
--- a/src/con.c
+++ b/src/con.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * con.c: Functions which deal with containers directly (creating containers,
  *        searching containers, getting specific properties from containers,
diff --git a/src/config.c b/src/config.c
index 8a1cb99c..6eb67a12 100644
--- a/src/config.c
+++ b/src/config.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * config.c: Configuration file (calling the parser (src/config_parser.c) with
  *           the correct path, switching key bindings mode).
diff --git a/src/config_directives.c b/src/config_directives.c
index daf4339b..eea3dba8 100644
--- a/src/config_directives.c
+++ b/src/config_directives.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * config_directives.c: all config storing functions (see config_parser.c)
  *
diff --git a/src/config_parser.c b/src/config_parser.c
index f3254812..a9baef27 100644
--- a/src/config_parser.c
+++ b/src/config_parser.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * config_parser.c: hand-written parser to parse configuration directives.
  *
diff --git a/src/debug.c b/src/debug.c
index f3bc106d..bb880b2f 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * debug.c: Debugging functions, especially FormatEvent, which prints unhandled
  *          events.  This code is from xcb-util.
diff --git a/src/display_version.c b/src/display_version.c
index a539dad3..6ece3f74 100644
--- a/src/display_version.c
+++ b/src/display_version.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * display_version.c: displays the running i3 version, runs as part of
  *                    i3 --moreversion.
diff --git a/src/ewmh.c b/src/ewmh.c
index 844a0db9..328bcab8 100644
--- a/src/ewmh.c
+++ b/src/ewmh.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * ewmh.c: Get/set certain EWMH properties easily.
  *
diff --git a/src/fake_outputs.c b/src/fake_outputs.c
index 4f274099..b4f92cd4 100644
--- a/src/fake_outputs.c
+++ b/src/fake_outputs.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * Faking outputs is useful in pathological situations (like network X servers
  * which don’t support multi-monitor in a useful way) and for our testsuite.
diff --git a/src/floating.c b/src/floating.c
index d01cb43d..f5641fff 100644
--- a/src/floating.c
+++ b/src/floating.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * floating.c: Floating windows.
  *
diff --git a/src/handlers.c b/src/handlers.c
index c80c279e..56e29607 100644
--- a/src/handlers.c
+++ b/src/handlers.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * handlers.c: Small handlers for various events (keypresses, focus changes,
  *             …).
diff --git a/src/ipc.c b/src/ipc.c
index f8138f0a..a60b1900 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * ipc.c: UNIX domain socket IPC (initialization, client handling, protocol).
  *
diff --git a/src/key_press.c b/src/key_press.c
index 95e5079e..88d09a0c 100644
--- a/src/key_press.c
+++ b/src/key_press.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * key_press.c: key press handler
  *
diff --git a/src/load_layout.c b/src/load_layout.c
index c4d39fce..e4c4531d 100644
--- a/src/load_layout.c
+++ b/src/load_layout.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * load_layout.c: Restore (parts of) the layout, for example after an inplace
  *                restart.
diff --git a/src/log.c b/src/log.c
index 6f44fa96..7cf98843 100644
--- a/src/log.c
+++ b/src/log.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * log.c: Logging functions.
  *
diff --git a/src/main.c b/src/main.c
index ac40e7a3..79273627 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * main.c: Initialization, main loop
  *
@@ -261,11 +261,11 @@ int main(int argc, char *argv[]) {
                 only_check_config = true;
                 break;
             case 'v':
-                printf("i3 version %s © 2009-2014 Michael Stapelberg and contributors\n", i3_version);
+                printf("i3 version %s © 2009 Michael Stapelberg and contributors\n", i3_version);
                 exit(EXIT_SUCCESS);
                 break;
             case 'm':
-                printf("Binary i3 version:  %s © 2009-2014 Michael Stapelberg and contributors\n", i3_version);
+                printf("Binary i3 version:  %s © 2009 Michael Stapelberg and contributors\n", i3_version);
                 display_running_version();
                 exit(EXIT_SUCCESS);
                 break;
diff --git a/src/manage.c b/src/manage.c
index 3499963b..ee56c0b3 100644
--- a/src/manage.c
+++ b/src/manage.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * manage.c: Initially managing new windows (or existing ones on restart).
  *
diff --git a/src/match.c b/src/match.c
index dc4d422f..d16ff0a0 100644
--- a/src/match.c
+++ b/src/match.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * A "match" is a data structure which acts like a mask or expression to match
  * certain windows or not. For example, when using commands, you can specify a
diff --git a/src/move.c b/src/move.c
index e4da191a..bd228a1c 100644
--- a/src/move.c
+++ b/src/move.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * move.c: Moving containers into some direction.
  *
diff --git a/src/output.c b/src/output.c
index 822a0f88..ec5d5f47 100644
--- a/src/output.c
+++ b/src/output.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * output.c: Output (monitor) related functions.
  *
diff --git a/src/randr.c b/src/randr.c
index a4a0f6fd..29183695 100644
--- a/src/randr.c
+++ b/src/randr.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * For more information on RandR, please see the X.org RandR specification at
  * http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt
diff --git a/src/regex.c b/src/regex.c
index 60dee5cc..9549a98b 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * regex.c: Interface to libPCRE (perl compatible regular expressions).
  *
diff --git a/src/render.c b/src/render.c
index d7d57667..76dfa69c 100644
--- a/src/render.c
+++ b/src/render.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * render.c: Renders (determines position/sizes) the layout tree, updating the
  *           various rects. Needs to be pushed to X11 (see x.c) to be visible.
diff --git a/src/resize.c b/src/resize.c
index 4ed835d5..994fd692 100644
--- a/src/resize.c
+++ b/src/resize.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * resize.c: Interactive resizing.
  *
diff --git a/src/restore_layout.c b/src/restore_layout.c
index 53a70d69..f56372a6 100644
--- a/src/restore_layout.c
+++ b/src/restore_layout.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * restore_layout.c: Everything for restored containers that is not pure state
  *                   parsing (which can be found in load_layout.c).
diff --git a/src/scratchpad.c b/src/scratchpad.c
index 75b8e56c..06a7cc73 100644
--- a/src/scratchpad.c
+++ b/src/scratchpad.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * scratchpad.c: Moving windows to the scratchpad and making them visible again.
  *
diff --git a/src/sighandler.c b/src/sighandler.c
index e971f6bd..4b1307c9 100644
--- a/src/sighandler.c
+++ b/src/sighandler.c
@@ -4,8 +4,8 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
- * © 2009-2010 Jan-Erik Rediger
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Jan-Erik Rediger
  *
  * sighandler.c: Interactive crash dialog upon SIGSEGV/SIGABRT/SIGFPE (offers
  *               to restart inplace).
diff --git a/src/startup.c b/src/startup.c
index aa347bd7..41f18d00 100644
--- a/src/startup.c
+++ b/src/startup.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * startup.c: Startup notification code. Ensures a startup notification context
  *            is setup when launching applications. We store the current
diff --git a/src/tree.c b/src/tree.c
index 753b02fc..92b56e6c 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * tree.c: Everything that primarily modifies the layout tree data structure.
  *
diff --git a/src/util.c b/src/util.c
index c891a6bc..0a8ba6e2 100644
--- a/src/util.c
+++ b/src/util.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * util.c: Utility functions, which can be useful everywhere within i3 (see
  *         also libi3).
diff --git a/src/version.c b/src/version.c
index d7d31b36..6e385ada 100644
--- a/src/version.c
+++ b/src/version.c
@@ -2,7 +2,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2015 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * Stores the latest Git commit identifier so that it can be linked into i3
  * and used dynamically without recompiling every object file.
diff --git a/src/window.c b/src/window.c
index 5485bcc3..253f738d 100644
--- a/src/window.c
+++ b/src/window.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * window.c: Updates window attributes (X11 hints/properties).
  *
diff --git a/src/workspace.c b/src/workspace.c
index 4a16f3d1..9034f6d5 100644
--- a/src/workspace.c
+++ b/src/workspace.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * workspace.c: Modifying workspaces, accessing them, moving containers to
  *              workspaces.
diff --git a/src/x.c b/src/x.c
index d29d4bef..7fe70445 100644
--- a/src/x.c
+++ b/src/x.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * x.c: Interface to X11, transfers our in-memory state to X11 (see also
  *      render.c). Basically a big state machine.
diff --git a/src/xcb.c b/src/xcb.c
index 5dda5cce..d5684353 100644
--- a/src/xcb.c
+++ b/src/xcb.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * xcb.c: Helper functions for easier usage of XCB
  *
diff --git a/src/xcursor.c b/src/xcursor.c
index 0a8da425..1e1e23b0 100644
--- a/src/xcursor.c
+++ b/src/xcursor.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2013 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * xcursor.c: xcursor support for themed cursors.
  *
diff --git a/src/xinerama.c b/src/xinerama.c
index 9e412e03..ec030230 100644
--- a/src/xinerama.c
+++ b/src/xinerama.c
@@ -4,7 +4,7 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * This is LEGACY code (we support RandR, which can do much more than
  * Xinerama), but necessary for the poor users of the nVidia binary
diff --git a/testcases/complete-run.pl b/testcases/complete-run.pl
index 911558e5..c1244e08 100755
--- a/testcases/complete-run.pl
+++ b/testcases/complete-run.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/env perl
 # vim:ts=4:sw=4:expandtab
-# © 2010-2012 Michael Stapelberg and contributors
+# © 2010 Michael Stapelberg and contributors
 package complete_run;
 use strict;
 use warnings;