diff --git a/build.xml b/build.xml
index 0e1654c3..67de26cc 100644
--- a/build.xml
+++ b/build.xml
@@ -1,6 +1,6 @@
 <project name="DavMail" default="dist" basedir=".">
     <property file="user.properties"/>
-    <property name="version" value="4.5.0"/>
+    <property name="version" value="4.5.1"/>
 
     <path id="classpath">
         <pathelement location="classes"/>
diff --git a/pom.xml b/pom.xml
index f7d9340e..bea6c7aa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <groupId>davmail</groupId>
     <artifactId>davmail</artifactId>
     <packaging>jar</packaging>
-    <version>4.5.0</version>
+    <version>4.5.1</version>
     <name>DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP Exchange Gateway</name>
     <organization>
         <name>Mickaël Guessant</name>
diff --git a/releasenotes.txt b/releasenotes.txt
index 93e6a12a..46502382 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -1,3 +1,26 @@
+** DavMail 4.5.1 released **
+Bugfix release to fix Exchange 2013 regressions and wrong Europe/London timezone mapping.
+
+DAV:
+- DAV: Another email address failover
+
+Caldav:
+- Caldav: Fix GMT Standard Time mapping to Europe/London
+- More timezones
+- Caldav: do not request additional properties for MeetingCancellation and MeetingResponse
+- Caldav: merge 33, apply myresponsetype partstat on all Exchange versions
+- Caldav: fix 569 and patch 32, avoid NullPointerException with Exchange 2013
+
+EWS:
+- EWS: Avoid null in log message
+
+Enhancements:
+- Merge patch 34: Fix false positive when searching for user alias and email 
+
+Doc:
+- Update FAQ on EWS endpoint not available error
+
+
 ** DavMail 4.5.0 released **
 Includes EWS performance enhancements, improved Exchange 2013 support and many fixes detected by Coverity audit tool
 
diff --git a/src/contribs/rpm/SPECS/davmail.spec b/src/contribs/rpm/SPECS/davmail.spec
index 06f44fad..136d5fa8 100644
--- a/src/contribs/rpm/SPECS/davmail.spec
+++ b/src/contribs/rpm/SPECS/davmail.spec
@@ -2,8 +2,8 @@
 %{?!davmail_uid:   %define davmail_uid   213}
 %{?!davmail_gid:   %define davmail_gid   213}
 
-%{?!davrel:   %define davrel   4.5.0}
-%{?!davsvn:   %define davsvn   2292}
+%{?!davrel:   %define davrel   4.5.1}
+%{?!davsvn:   %define davsvn   2303}
 %define davver %{davrel}-%{davsvn}
 %ifarch i386 i586 i686
 %define davarch x86