Update CHANGELOG.md

MenoData · web-flow · commit 0b944ca24369 · 2019-04-16T10:48:27.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,6 @@
-## [v5.3] not yet released
+## [v5.4] not yet released
+
+## [v5.3] published on 2019-04-16
 ### Added
 - Badi calendar (Bahai) [#798]
 - Documentation of calendar view customization in JavaFX-CalendarPicker [#857]
