diff --git a/CHANGELOG b/CHANGELOG
index c5ec9b1e1..634a9ffe6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,11 @@
 This is the changelog file for the POCO C++ Libraries.
 
+Release 1.7.3 (2016-05-xx)
+==========================
+
+- TODO
+
+
 Release 1.7.2 (2016-03-21)
 ==========================
 
diff --git a/DLLVersion.rc b/DLLVersion.rc
index 2dc59b38a..121ca74fa 100644
--- a/DLLVersion.rc
+++ b/DLLVersion.rc
@@ -4,8 +4,8 @@
 
 #include "winres.h"
 
-#define POCO_VERSION 1,7,2,0
-#define POCO_VERSION_STR "1.7.2"
+#define POCO_VERSION 1,7,3,0
+#define POCO_VERSION_STR "1.7.3"
 
 VS_VERSION_INFO VERSIONINFO
  FILEVERSION POCO_VERSION
diff --git a/Foundation/include/Poco/Version.h b/Foundation/include/Poco/Version.h
index 392594e60..6bcbfe715 100644
--- a/Foundation/include/Poco/Version.h
+++ b/Foundation/include/Poco/Version.h
@@ -37,7 +37,7 @@
 //      Ax: alpha releases
 //      Bx: beta releases
 //
-#define POCO_VERSION 0x01070200
+#define POCO_VERSION 0x01070300
 
 
 #endif // Foundation_Version_INCLUDED
diff --git a/VERSION b/VERSION
index f8a696c8d..661e7aead 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.7.2
+1.7.3
diff --git a/doc/99100-ReleaseNotes.page b/doc/99100-ReleaseNotes.page
index e77ac7c42..e375d7dbc 100644
--- a/doc/99100-ReleaseNotes.page
+++ b/doc/99100-ReleaseNotes.page
@@ -1,6 +1,13 @@
 POCO C++ Libraries Release Notes
 AAAIntroduction
 
+!!!Release 1.7.3
+
+!!Summary of Changes
+
+  - TODO
+
+
 !!!Release 1.7.2
 
 !!Summary of Changes
diff --git a/libversion b/libversion
index d81cc0710..920a13966 100644
--- a/libversion
+++ b/libversion
@@ -1 +1 @@
-42
+43