diff --git a/.header.json b/.header.json
index e260035..dc24b15 100644
--- a/.header.json
+++ b/.header.json
@@ -15,7 +15,7 @@
     ],
     "UseDefaultExcludes": true,
     "Properties": {
-        "Year": "2014-2017",
+        "Year": "2014-2018",
         "Owner": "b3log.org & hacpai.com"
     }
 }
\ No newline at end of file
diff --git a/conf/user.go b/conf/user.go
index fe5d4fd..e88c097 100644
--- a/conf/user.go
+++ b/conf/user.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/conf/wide.go b/conf/wide.go
index 38f9a5d..b0ddc2f 100644
--- a/conf/wide.go
+++ b/conf/wide.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/editor/editors.go b/editor/editors.go
index 390a4a2..0fd5455 100644
--- a/editor/editors.go
+++ b/editor/editors.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/editor/formatter.go b/editor/formatter.go
index 2d2b0e2..29ece3f 100644
--- a/editor/formatter.go
+++ b/editor/formatter.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/event/events.go b/event/events.go
index b1cfbc4..bf74d5a 100644
--- a/event/events.go
+++ b/event/events.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/file/decompress.go b/file/decompress.go
index 27200b0..cc103ac 100644
--- a/file/decompress.go
+++ b/file/decompress.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/file/exporter.go b/file/exporter.go
index ae10ab2..74639f6 100644
--- a/file/exporter.go
+++ b/file/exporter.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/file/files.go b/file/files.go
index d0c2ffb..efb38c2 100644
--- a/file/files.go
+++ b/file/files.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/file/importer.go b/file/importer.go
index 3e69f09..384e590 100644
--- a/file/importer.go
+++ b/file/importer.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/file/outline.go b/file/outline.go
index 36c786a..0e2a4c3 100755
--- a/file/outline.go
+++ b/file/outline.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/i18n/locales.go b/i18n/locales.go
index 6431767..41092b4 100644
--- a/i18n/locales.go
+++ b/i18n/locales.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/log/logs.go b/log/logs.go
index f57dccb..c980534 100755
--- a/log/logs.go
+++ b/log/logs.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/log/logs_test.go b/log/logs_test.go
index ca4cf03..a04f4d0 100644
--- a/log/logs_test.go
+++ b/log/logs_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/main.go b/main.go
index 3ffcbd2..91f77d5 100644
--- a/main.go
+++ b/main.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/notification/notifications.go b/notification/notifications.go
index 28362fb..02afa4c 100644
--- a/notification/notifications.go
+++ b/notification/notifications.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/build.go b/output/build.go
index f4dcbf9..1299004 100644
--- a/output/build.go
+++ b/output/build.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/cross.go b/output/cross.go
index f6f5ae6..6f516f8 100644
--- a/output/cross.go
+++ b/output/cross.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/get.go b/output/get.go
index b5dd83c..f1c28ba 100644
--- a/output/get.go
+++ b/output/get.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/install.go b/output/install.go
index ba4311e..431bde3 100644
--- a/output/install.go
+++ b/output/install.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/namespace.go b/output/namespace.go
index e27e1f1..eff146e 100644
--- a/output/namespace.go
+++ b/output/namespace.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/namespace_linux.go b/output/namespace_linux.go
index 62360c2..36b46f4 100644
--- a/output/namespace_linux.go
+++ b/output/namespace_linux.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/outputs.go b/output/outputs.go
index f41993f..fca07af 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/processes.go b/output/processes.go
index d1490e2..d3e9422 100644
--- a/output/processes.go
+++ b/output/processes.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/run.go b/output/run.go
index b629ede..cfbb0c3 100644
--- a/output/run.go
+++ b/output/run.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/test.go b/output/test.go
index 82f5516..62000b3 100644
--- a/output/test.go
+++ b/output/test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/output/vet.go b/output/vet.go
index 537930f..21083fe 100644
--- a/output/vet.go
+++ b/output/vet.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/playground/autocomplete.go b/playground/autocomplete.go
index 55b2c71..6e783cb 100644
--- a/playground/autocomplete.go
+++ b/playground/autocomplete.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/playground/build.go b/playground/build.go
index 6332fe9..71be48f 100644
--- a/playground/build.go
+++ b/playground/build.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/playground/file.go b/playground/file.go
index 7f65ad2..585d150 100644
--- a/playground/file.go
+++ b/playground/file.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/playground/playgrounds.go b/playground/playgrounds.go
index 1752226..13c4660 100644
--- a/playground/playgrounds.go
+++ b/playground/playgrounds.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/playground/run.go b/playground/run.go
index 8ef3694..854e086 100644
--- a/playground/run.go
+++ b/playground/run.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/scm/git/clone.go b/scm/git/clone.go
index c949bdc..b873d34 100644
--- a/scm/git/clone.go
+++ b/scm/git/clone.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/session/sessions.go b/session/sessions.go
index d7d51bd..c0dada7 100644
--- a/session/sessions.go
+++ b/session/sessions.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/session/users.go b/session/users.go
index 7203331..6f6b2b0 100644
--- a/session/users.go
+++ b/session/users.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/shell/shells.go b/shell/shells.go
index 3fcb0d7..8c2df12 100644
--- a/shell/shells.go
+++ b/shell/shells.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/static/css/about.css b/static/css/about.css
index f9d3608..b00695a 100644
--- a/static/css/about.css
+++ b/static/css/about.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/base.css b/static/css/base.css
index ae899e8..3846f94 100644
--- a/static/css/base.css
+++ b/static/css/base.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/dialog.css b/static/css/dialog.css
index ad7fc7d..756b3b9 100644
--- a/static/css/dialog.css
+++ b/static/css/dialog.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/lib.min.css b/static/css/lib.min.css
index 56937a1..5139a55 100644
--- a/static/css/lib.min.css
+++ b/static/css/lib.min.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/playground.css b/static/css/playground.css
index 03672dd..514c236 100644
--- a/static/css/playground.css
+++ b/static/css/playground.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/shell.css b/static/css/shell.css
index f1c079a..45ac06b 100644
--- a/static/css/shell.css
+++ b/static/css/shell.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/side.css b/static/css/side.css
index bdfd61f..83f2f87 100644
--- a/static/css/side.css
+++ b/static/css/side.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/sign.css b/static/css/sign.css
index f7452d0..6451f44 100644
--- a/static/css/sign.css
+++ b/static/css/sign.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/start.css b/static/css/start.css
index d6deceb..88abf44 100644
--- a/static/css/start.css
+++ b/static/css/start.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/themes/dark.css b/static/css/themes/dark.css
index 49ac534..8fa1092 100644
--- a/static/css/themes/dark.css
+++ b/static/css/themes/dark.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/themes/default.css b/static/css/themes/default.css
index ed66a62..2e548f3 100644
--- a/static/css/themes/default.css
+++ b/static/css/themes/default.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/wide.css b/static/css/wide.css
index dd72a43..a61322d 100644
--- a/static/css/wide.css
+++ b/static/css/wide.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/css/wide.min.css b/static/css/wide.min.css
index 7cf706c..cbc52a7 100644
--- a/static/css/wide.min.css
+++ b/static/css/wide.min.css
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/bottomGroup.js b/static/js/bottomGroup.js
index 8c2876f..d465b70 100644
--- a/static/js/bottomGroup.js
+++ b/static/js/bottomGroup.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/dialog.js b/static/js/dialog.js
index fc38994..a1a764c 100644
--- a/static/js/dialog.js
+++ b/static/js/dialog.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/editors.js b/static/js/editors.js
index c110bd1..df9ec66 100644
--- a/static/js/editors.js
+++ b/static/js/editors.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/hotkeys.js b/static/js/hotkeys.js
index 7d739a5..0ff3bf3 100644
--- a/static/js/hotkeys.js
+++ b/static/js/hotkeys.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/lib.min.js b/static/js/lib.min.js
index 69403e3..2f74dbf 100644
--- a/static/js/lib.min.js
+++ b/static/js/lib.min.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/menu.js b/static/js/menu.js
index 14aedfd..de0d297 100644
--- a/static/js/menu.js
+++ b/static/js/menu.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/notification.js b/static/js/notification.js
index d0c9084..af142ac 100644
--- a/static/js/notification.js
+++ b/static/js/notification.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/overwrite/codemirror/addon/hint/show-hint.js b/static/js/overwrite/codemirror/addon/hint/show-hint.js
index 79a93ff..102e638 100644
--- a/static/js/overwrite/codemirror/addon/hint/show-hint.js
+++ b/static/js/overwrite/codemirror/addon/hint/show-hint.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/playground.js b/static/js/playground.js
index 19c5b9a..5790e95 100644
--- a/static/js/playground.js
+++ b/static/js/playground.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/session.js b/static/js/session.js
index a54cdd3..2330b2e 100644
--- a/static/js/session.js
+++ b/static/js/session.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/shell.js b/static/js/shell.js
index 0c2fb1d..74dd3ff 100644
--- a/static/js/shell.js
+++ b/static/js/shell.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/tabs.js b/static/js/tabs.js
index 365bb09..ece553f 100644
--- a/static/js/tabs.js
+++ b/static/js/tabs.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/tree.js b/static/js/tree.js
index dab4f51..bc643f2 100644
--- a/static/js/tree.js
+++ b/static/js/tree.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/wide.js b/static/js/wide.js
index fa4ba57..20ee700 100644
--- a/static/js/wide.js
+++ b/static/js/wide.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/wide.min.js b/static/js/wide.min.js
index 0cdf225..d6bd8f2 100644
--- a/static/js/wide.min.js
+++ b/static/js/wide.min.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/static/js/windows.js b/static/js/windows.js
index 42dff7b..a7d97fa 100644
--- a/static/js/windows.js
+++ b/static/js/windows.js
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2017, b3log.org & hacpai.com
+ * Copyright (c) 2014-2018, b3log.org & hacpai.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/util/file.go b/util/file.go
index 8f33e8b..9136281 100644
--- a/util/file.go
+++ b/util/file.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/file_test.go b/util/file_test.go
index 56dca24..8e9a28f 100644
--- a/util/file_test.go
+++ b/util/file_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/go.go b/util/go.go
index d7e2614..b0d3caf 100644
--- a/util/go.go
+++ b/util/go.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/go_test.go b/util/go_test.go
index fe8ab3a..591f204 100644
--- a/util/go_test.go
+++ b/util/go_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/net.go b/util/net.go
index fe38c65..02ee26b 100644
--- a/util/net.go
+++ b/util/net.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/net_test.go b/util/net_test.go
index 7e50ce1..9418f9d 100644
--- a/util/net_test.go
+++ b/util/net_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/os.go b/util/os.go
index 4e8ea9d..cc8428f 100644
--- a/util/os.go
+++ b/util/os.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/os_test.go b/util/os_test.go
index 580e20e..868a54b 100644
--- a/util/os_test.go
+++ b/util/os_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/panic.go b/util/panic.go
index e128e78..9b498e8 100644
--- a/util/panic.go
+++ b/util/panic.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/panic_test.go b/util/panic_test.go
index 1f69c0a..4d180c3 100644
--- a/util/panic_test.go
+++ b/util/panic_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/rand.go b/util/rand.go
index 9c90eca..d9e9368 100644
--- a/util/rand.go
+++ b/util/rand.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/rand_test.go b/util/rand_test.go
index 5ab968a..f6e2b39 100644
--- a/util/rand_test.go
+++ b/util/rand_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/ret.go b/util/ret.go
index 0ff62e6..a727c1d 100644
--- a/util/ret.go
+++ b/util/ret.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/string.go b/util/string.go
index b87dd0e..d8f98ba 100755
--- a/util/string.go
+++ b/util/string.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/string_test.go b/util/string_test.go
index 92b9b93..9350056 100644
--- a/util/string_test.go
+++ b/util/string_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/websocket.go b/util/websocket.go
index 89ac01a..715bc5f 100644
--- a/util/websocket.go
+++ b/util/websocket.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/zip.go b/util/zip.go
index 89935ca..894d80e 100644
--- a/util/zip.go
+++ b/util/zip.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/util/zip_test.go b/util/zip_test.go
index 2ed6477..3567d2f 100644
--- a/util/zip_test.go
+++ b/util/zip_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2017, b3log.org & hacpai.com
+// Copyright (c) 2014-2018, b3log.org & hacpai.com
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.