diff --git a/HISTORY.md b/HISTORY.md
index f4bd8cb3..10254d06 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -6,6 +6,9 @@
* **Notable Fixes:**
* **Translation Updates:**
+### 2019-10-28
+* new dev version
+
## v5.2.3:
* **Notable Changes:*
* added sprite dimension selectors to the OF reporter's dropdown menu
diff --git a/snap.html b/snap.html
index ff94b6d7..495f8e4e 100755
--- a/snap.html
+++ b/snap.html
@@ -2,14 +2,14 @@
- Snap! Build Your Own Blocks 5.2.3
+ Snap! Build Your Own Blocks 5.2.4 - dev -
-
+
diff --git a/src/gui.js b/src/gui.js
index 4320a710..449801ad 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -79,7 +79,7 @@ BlockEditorMorph, BlockDialogMorph*/
// Global stuff ////////////////////////////////////////////////////////
-modules.gui = '2019-October-25';
+modules.gui = '2019-October-28';
// Declarations
@@ -3626,7 +3626,7 @@ IDE_Morph.prototype.aboutSnap = function () {
module, btn1, btn2, btn3, btn4, licenseBtn, translatorsBtn,
world = this.world();
- aboutTxt = 'Snap! 5.2.2\nBuild Your Own Blocks\n\n'
+ aboutTxt = 'Snap! 5.2.4 - dev -\nBuild Your Own Blocks\n\n'
+ 'Copyright \u24B8 2019 Jens M\u00F6nig and '
+ 'Brian Harvey\n'
+ 'jens@moenig.org, bh@cs.berkeley.edu\n\n'