diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6b3cc0..63fb5b1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ project ( dmidiplayer
     HOMEPAGE_URL "https://sourceforge.net/p/dmidiplayer/"
 )
 
-#set(PROJECT_RELEASE_DATE "December 30, 2021")
+set(PROJECT_RELEASE_DATE "December 22, 2021")
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
diff --git a/ChangeLog b/ChangeLog
index bdd2bef..00bb494 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2021-12-22
+    * Release 1.5.3
+
 2021-12-18
     * replaced deprecated signalSMFText() by signalSMFText2()
     * added support for Cakewalk (WRK) format markers
diff --git a/README.md b/README.md
index 8430187..55ae515 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,10 @@ Some key features:
 * Lyrics, Piano Player and MIDI Channels views
 * Supports MID/KAR/RMI (Standard MIDI Files) and WRK (Cakewalk) file formats
 
+New in v1.5.3:
+* After drumstick ticket #37: WRK format markers are supported.
+* Replaced deprecated signals from drumstick-file when building with Qt6.
+
 New in v1.5.2:
 * New build option USE_QT to choose among Qt major versions (5 or 6). By default (if not set) it uses whatever is found.
 * Fix for crash in Linux when using the MIDI connections dialog, and there are not suitable MIDI ports available.
diff --git a/docs/dmidiplayer.1 b/docs/dmidiplayer.1
index 1709733..7e99eaa 100644
--- a/docs/dmidiplayer.1
+++ b/docs/dmidiplayer.1
@@ -1,6 +1,6 @@
 .\" Automatically generated by Pandoc 1.19.2.1
 .\"
-.TH "DMIDIPLAYER" "1" "September 19, 2021" "dmidiplayer 1.5.1" "Drumstick MIDI File Player"
+.TH "DMIDIPLAYER" "1" "December 22, 2021" "dmidiplayer 1.5.3" "Drumstick MIDI File Player"
 .hy
 .SH NAME
 .PP
diff --git a/net.sourceforge.dmidiplayer.appdata.xml b/net.sourceforge.dmidiplayer.appdata.xml
index 6223c87..bc6e38b 100644
--- a/net.sourceforge.dmidiplayer.appdata.xml
+++ b/net.sourceforge.dmidiplayer.appdata.xml
@@ -30,7 +30,7 @@
         </screenshot>
     </screenshots>
     <releases>
-        <release version="1.5.3" date="2021-12-24">
+        <release version="1.5.3" date="2021-12-22">
             <description>
                 <p>This release includes the following changes</p>
                 <ul>