diff --git a/HISTORY.md b/HISTORY.md
index f0e3e2d4..a0890410 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -6,6 +6,8 @@
* **Notable Fixes:**
* **Translation Updates:**
+### 2020-01-03
+* new dev version
## 5.4.0:
* **New Features:**
diff --git a/README.md b/README.md
index d1ace354..79dbc064 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ inspired by Scratch
written by Jens Mönig and Brian Harvey
jens@moenig.org, bh@cs.berkeley.edu
-Copyright (C) 2019 by Jens Mönig and Brian Harvey
+Copyright (C) 2008-2020 by Jens Mönig and Brian Harvey
Snap! is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
diff --git a/snap.html b/snap.html
index 539d84e2..596d2bff 100755
--- a/snap.html
+++ b/snap.html
@@ -2,14 +2,14 @@
- Snap! Build Your Own Blocks 5.4.0
+ Snap! Build Your Own Blocks 5.4.1 - dev -
-
+
diff --git a/src/gui.js b/src/gui.js
index 7d9525e0..2e9f9759 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -9,7 +9,7 @@
written by Jens Mönig
jens@moenig.org
- Copyright (C) 2019 by Jens Mönig
+ Copyright (C) 2020 by Jens Mönig
This file is part of Snap!.
@@ -78,7 +78,7 @@ Animation, BoxMorph, BlockEditorMorph, BlockDialogMorph*/
// Global stuff ////////////////////////////////////////////////////////
-modules.gui = '2019-December-19';
+modules.gui = '2020-January-03';
// Declarations
@@ -3636,8 +3636,8 @@ IDE_Morph.prototype.aboutSnap = function () {
module, btn1, btn2, btn3, btn4, licenseBtn, translatorsBtn,
world = this.world();
- aboutTxt = 'Snap! 5.4.0\nBuild Your Own Blocks\n\n'
- + 'Copyright \u24B8 2019 Jens M\u00F6nig and '
+ aboutTxt = 'Snap! 5.4.1 - dev -\nBuild Your Own Blocks\n\n'
+ + 'Copyright \u24B8 2008-2020 Jens M\u00F6nig and '
+ 'Brian Harvey\n'
+ 'jens@moenig.org, bh@cs.berkeley.edu\n\n'