diff --git a/HISTORY.md b/HISTORY.md
index b7932e8d..f0e3e2d4 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,14 +1,19 @@
# Snap! (BYOB) History
## in development:
+* **New Features:**
+* **Notable Changes:**
+* **Notable Fixes:**
+* **Translation Updates:**
+
+
+## 5.4.0:
* **New Features:**
* log pen vectors
* export pen trails as SVG
* access pen trails as SVG_Costume: new "pen vectors" reporter variant of "pen trails"
- * new Snap! API: programmatically broadcast messages and optionally wait from outside Snap!
- * new Snap! API: programmatically add message listeners to get notified and react to broadcasts from outside Snap!
- * new Snap! API: programmatically get and set global variables from outside Snap!
-* **Notable Changes:**
+ * new Snap! API: broadcast and react to messages, access global variables from outside Snap!
+* **Notable Change:**
* when creating a costume from pen trails (raster or vector) make its rotation center the position of the sprite
* **Notable Fixes:**
* support null-serialization in list-csv conversions
@@ -19,6 +24,7 @@
### 2019-12-19
* objects, threads: refactored inheritance circularity avoidance
+* prepared release
### 2019-12-18
* gui, api: rearranged Snap! API into its own file
diff --git a/snap.html b/snap.html
index da3aa163..539d84e2 100755
--- a/snap.html
+++ b/snap.html
@@ -2,14 +2,14 @@
- Snap! Build Your Own Blocks 5.4.0 - dev -
+ Snap! Build Your Own Blocks 5.4.0
-
+
diff --git a/src/gui.js b/src/gui.js
index c1f4b81b..7d9525e0 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -78,7 +78,7 @@ Animation, BoxMorph, BlockEditorMorph, BlockDialogMorph*/
// Global stuff ////////////////////////////////////////////////////////
-modules.gui = '2019-December-18';
+modules.gui = '2019-December-19';
// Declarations
@@ -3636,7 +3636,7 @@ IDE_Morph.prototype.aboutSnap = function () {
module, btn1, btn2, btn3, btn4, licenseBtn, translatorsBtn,
world = this.world();
- aboutTxt = 'Snap! 5.4.0 - dev -\nBuild Your Own Blocks\n\n'
+ aboutTxt = 'Snap! 5.4.0\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'