diff --git a/README.md b/README.md
index a2b6586..f3e42e7 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,13 @@
 
 Release Notes
 -------------
+### 4.5 - 1 Oct 2016
+- Attach files by dropping into textarea
+- Issues / Pull requests switcher in dashboard
+- HikariCP could be configured in `GITBUCKET_HOME/database.conf`
+- Improve Cookie security
+- Improve mobile view
+
 ### 4.4 - 28 Aug 2016
 - Import a SQL dump file to the database
 - `go get` support in private repositories
diff --git a/build.sbt b/build.sbt
index e49451b..760aab1 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 val Organization = "io.github.gitbucket"
 val Name = "gitbucket"
-val GitBucketVersion = "4.4.0"
+val GitBucketVersion = "4.5.0"
 val ScalatraVersion = "2.4.1"
 val JettyVersion = "9.3.9.v20160517"
 
diff --git a/doc/release.md b/doc/release.md
index 504778c..682dc88 100644
--- a/doc/release.md
+++ b/doc/release.md
@@ -46,9 +46,10 @@
 
 ### Deploy assembly jar file
 
-For plug-in development, we have to publish the assembly jar file to the public Maven repository by `release/deploy-assembly-jar.sh`.
+For plug-in development, we have to publish the GitBucket jar file to the Maven central repository as well. At first, hit following command to publish artifacts to the sonatype OSS repository:
 
 ```bash
-$ cd release/
-$ ./deploy-assembly-jar.sh
+$ sbt publish-signed
 ```
+
+Then operate release sequence at https://oss.sonatype.org/.
diff --git a/release/deploy-assembly-jar.sh b/release/deploy-assembly-jar.sh
deleted file mode 100755
index 43778d7..0000000
--- a/release/deploy-assembly-jar.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/bin/sh
-. ./env.sh
-
-cd ../
-./sbt.sh clean assembly
-
-cd release
-
-if [[ "$GITBUCKET_VERSION" =~ -SNAPSHOT$ ]]; then
-  MVN_DEPLOY_PATH=mvn-snapshot
-else
-  MVN_DEPLOY_PATH=mvn
-fi
-
-echo $MVN_DEPLOY_PATH
-
-mvn deploy:deploy-file \
-  -DgroupId=gitbucket\
-  -DartifactId=gitbucket-assembly\
-  -Dversion=$GITBUCKET_VERSION\
-  -Dpackaging=jar\
-  -Dfile=../target/scala-2.11/gitbucket-assembly-$GITBUCKET_VERSION.jar\
-  -DrepositoryId=sourceforge.jp\
-  -Durl=scp://shell.sourceforge.jp/home/groups/a/am/amateras/htdocs/$MVN_DEPLOY_PATH/
diff --git a/release/env.sh b/release/env.sh
deleted file mode 100644
index 5892171..0000000
--- a/release/env.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh
-export GITBUCKET_VERSION=`cat ../build.sbt | grep 'val GitBucketVersion' | cut -d \" -f 2`
-echo "GITBUCKET_VERSION: $GITBUCKET_VERSION"
diff --git a/release/pom.xml b/release/pom.xml
deleted file mode 100644
index 0d84d21..0000000
--- a/release/pom.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>jp.sf.amateras</groupId>
-    <artifactId>gitbucket-assembly</artifactId>
-    <version>0.0.1</version>
-    <build>
-        <extensions>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-ssh</artifactId>
-                <version>2.10</version>
-            </extension>
-        </extensions>
-    </build>
-</project>
\ No newline at end of file
diff --git a/src/main/scala/gitbucket/core/GitBucketCoreModule.scala b/src/main/scala/gitbucket/core/GitBucketCoreModule.scala
index d1685ba..a404be3 100644
--- a/src/main/scala/gitbucket/core/GitBucketCoreModule.scala
+++ b/src/main/scala/gitbucket/core/GitBucketCoreModule.scala
@@ -14,5 +14,6 @@
   ),
   new Version("4.2.1"),
   new Version("4.3.0"),
-  new Version("4.4.0")
+  new Version("4.4.0"),
+  new Version("4.5.0")
 )