diff --git a/Doc/commontex/boilerplate.tex b/Doc/commontex/boilerplate.tex
index 481fab0..ae8c67d 100644
--- a/Doc/commontex/boilerplate.tex
+++ b/Doc/commontex/boilerplate.tex
@@ -5,5 +5,5 @@
 	Email: \email{docs@python.org}
 }
 
-\date{19th December, 2008}			% XXX update before final release!
+\date{23rd December, 2008}			% XXX update before final release!
 \input{patchlevel}		% include Python version information
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 552cf02..db28568 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -22,11 +22,11 @@
 #define PY_MAJOR_VERSION	2
 #define PY_MINOR_VERSION	5
 #define PY_MICRO_VERSION	4
-#define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_ALPHA
+#define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_FINAL
 #define PY_RELEASE_SERIAL	0
 
 /* Version as a string */
-#define PY_VERSION		"2.5.3+"
+#define PY_VERSION		"2.5.4"
 
 /* Subversion Revision number of this file (not of the repository) */
 #define PY_PATCHLEVEL_REVISION  "$Revision$"
diff --git a/Lib/idlelib/NEWS.txt b/Lib/idlelib/NEWS.txt
index 7528e46..c88f54b 100644
--- a/Lib/idlelib/NEWS.txt
+++ b/Lib/idlelib/NEWS.txt
@@ -1,3 +1,8 @@
+What's New in IDLE 1.2.4?
+=========================
+
+*Release date: 23-Dec-2008*
+
 What's New in IDLE 1.2.3?
 =========================
 
diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 1ffd7a7..385327d 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "1.2.3"
+IDLE_VERSION = "1.2.4"
diff --git a/Misc/NEWS b/Misc/NEWS
index d4cce5b..bfb9eb1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -7,7 +7,7 @@
 What's New in Python 2.5.4?
 ===========================
 
-*Release date: XX-XXX-2009*
+*Release date: 23-Dec-2008*
 
 Core and builtins
 -----------------
diff --git a/README b/README
index 758ce3e..ece68c4 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-This is Python version 2.5.3
+This is Python version 2.5.4
 ============================
 
 Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Python Software 
diff --git a/Tools/msi/uuids.py b/Tools/msi/uuids.py
index 642bd64..2b3831f 100644
--- a/Tools/msi/uuids.py
+++ b/Tools/msi/uuids.py
@@ -37,4 +37,5 @@
     '2.5.2150':'{6b976adf-8ae8-434e-b282-a06c7f624d2f}', # 2.5.2
     '2.5.3121':'{bcd1d908-027a-4724-bee1-039900cdda7e}', # 2.5.3c1
     '2.5.3150':'{d5cf2397-1d36-4e1f-9756-fab15e383b31}', # 2.5.3
+    '2.5.4150':'{2e0dfc24-7c4b-4dcf-bcc7-81c513bed3bc}', # 2.5.4
 }