diff --git a/.travis.yml b/.travis.yml
index 05baec1..bfbcb9b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ notifications:
     on_success: change
     on_failure: always
     recipients:
-      - pyo@robotis.com
+      - willson@robotis.com
 env:
   matrix:
     - ROS_DISTRO=kinetic ROS_REPO=ros-shadow-fixed UPSTREAM_WORKSPACE=debian OS_NAME=ubuntu OS_CODE_NAME=xenial
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 4dc9bf2..e53a55e 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,16 @@
 Changelog for package robotis_manipulator
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+1.1.0 (2020-09-27)
+------------------
+* supports Doxygen
+* added getTrajectory function
+* added torque coefficient
+* change return type of funtions from void to bool
+* added dynamics solving options
+* fixed several bugs
+* Contributors: Hye-Jong KIM, Yong-Ho Na, Tomoya Yamanokuchi
+
 1.0.0 (2019-02-08)
 ------------------
 * updated the CHANGELOG and version to release binary packages
diff --git a/package.xml b/package.xml
index c5d0c09..34974d5 100644
--- a/package.xml
+++ b/package.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package format="2">
   <name>robotis_manipulator</name>
-  <version>1.0.0</version>
+  <version>1.1.0</version>
   <description>
     This package contains the manipulation API and functions for controlling the manipulator.
   </description>
@@ -10,8 +10,8 @@
   <author email="thlim@robotis.com">Darby Lim</author>
   <author email="yhna@robotis.com">Yong-Ho Na</author>
   <author email="jhshim@robotis.com">Ryan Shim</author>
-  <maintainer email="pyo@robotis.com">Pyo</maintainer>
   <maintainer email="hjkim@robotis.com">Hye-Jong KIM</maintainer>
+  <maintainer email="willson@robotis.com">Will Son</maintainer>
   <url type="website">http://wiki.ros.org/robotis_manipulator</url>
   <url type="emanual">http://emanual.robotis.com/docs/en/platform/openmanipulator</url>
   <url type="repository">https://github.com/ROBOTIS-GIT/robotis_manipulator</url>