diff --git a/.travis.yml b/.travis.yml
index 0c05ddd5b..d113e625e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,8 @@ cache:
 
 # Handle dependencies in separate directory.
 before_install:
+    - TESTINST_DIR="${HOME}/dummy"
+    - mkdir -p "${TESTINST_DIR}"
     - DEPS_DIR="${HOME}/deps"
     - mkdir -p "${DEPS_DIR}"
     - cd "${DEPS_DIR}"
@@ -40,9 +42,11 @@ before_script:
 script:
     - mkdir -p build
     - cd build
-    - cmake -D CMAKE_PREFIX_PATH:PATH=${DEPS_DIR}/protobuf/install ..
+    - cmake -D CMAKE_PREFIX_PATH:PATH=${DEPS_DIR}/protobuf/install -D CMAKE_INSTALL_PREFIX:PATH=${TESTINST_DIR} ..
     - cmake --build .
     - cd ..
     - python test_cases.py
     - python setup.py build
     - python setup.py sdist
+    - cd build
+    - cmake --build . --target install
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 765f7c2f6..7f65c5313 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,9 @@ foreach(LINE ${VERSION_CONTENTS})
 endforeach()
 set(OPEN_SIMULATION_INTERFACE_VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH})
 
+set(INSTALL_LIB_DIR ${INSTALL_LIB_DIR}/osi${VERSION_MAJOR})
+set(INSTALL_INCLUDE_DIR ${INSTALL_INCLUDE_DIR}/osi${VERSION_MAJOR})
+
 configure_file(osi_version.proto.in ${CMAKE_CURRENT_SOURCE_DIR}/osi_version.proto)
 
 find_package(Protobuf 2.6.1 REQUIRED)
@@ -105,7 +108,6 @@ install(TARGETS ${PROJECT_NAME}_pic
         EXPORT ${PROJECT_NAME}_targets
         ARCHIVE DESTINATION "${INSTALL_LIB_DIR}" COMPONENT lib)
 
-
 add_library(${PROJECT_NAME} SHARED $<TARGET_OBJECTS:${PROJECT_NAME}_obj>)
 target_include_directories(${PROJECT_NAME}
     PUBLIC
@@ -141,7 +143,7 @@ install(FILES
 
 # Header files
 install(FILES ${PROTO_HEADERS}
-        DESTINATION "${CMAKE_INSTALL_PREFIX}/${INSTALL_INCLUDE_DIR}")
+        DESTINATION "${INSTALL_INCLUDE_DIR}")
 
 # Install the export set for use with the install-tree
 install(EXPORT ${PROJECT_NAME}_targets
diff --git a/VERSION b/VERSION
index 9bd69d4eb..acc700dd0 100644
--- a/VERSION
+++ b/VERSION
@@ -1,3 +1,3 @@
-VERSION_MAJOR = 2
-VERSION_MINOR = 2
-VERSION_PATCH = 0
\ No newline at end of file
+VERSION_MAJOR = 3
+VERSION_MINOR = 0
+VERSION_PATCH = 0
diff --git a/osi_common.proto b/osi_common.proto
index 6516ce5b7..4a43a6c55 100644
--- a/osi_common.proto
+++ b/osi_common.proto
@@ -2,7 +2,7 @@ syntax = "proto2";
 
 option optimize_for = SPEED;
 
-package osi;
+package osi3;
 
 
 //
diff --git a/osi_datarecording.proto b/osi_datarecording.proto
index 44fef0704..a986d03f8 100644
--- a/osi_datarecording.proto
+++ b/osi_datarecording.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_sensordata.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief (Time) Series of \c SensorData messages that may be used for data
diff --git a/osi_detectedlandmark.proto b/osi_detectedlandmark.proto
index 7aad06749..9ce6b93d1 100644
--- a/osi_detectedlandmark.proto
+++ b/osi_detectedlandmark.proto
@@ -6,7 +6,7 @@ import "osi_common.proto";
 import "osi_landmark.proto";
 import "osi_detectedobject.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A traffic sign in the environment as detected by the sensor.
diff --git a/osi_detectedlane.proto b/osi_detectedlane.proto
index 3961b74d2..0fb64c9b1 100644
--- a/osi_detectedlane.proto
+++ b/osi_detectedlane.proto
@@ -6,7 +6,7 @@ import "osi_common.proto";
 import "osi_lane.proto";
 import "osi_detectedobject.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A lane segment as detected by the sensor.
diff --git a/osi_detectedobject.proto b/osi_detectedobject.proto
index d20a6712a..edd8c69f0 100644
--- a/osi_detectedobject.proto
+++ b/osi_detectedobject.proto
@@ -7,7 +7,7 @@ import "osi_modelinternal.proto";
 import "osi_object.proto";
 import "osi_sensorspecific.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief Object in the environment as detected and perceived by the sensor.
diff --git a/osi_detectedoccupant.proto b/osi_detectedoccupant.proto
index 61da11fc8..c4ff6f380 100644
--- a/osi_detectedoccupant.proto
+++ b/osi_detectedoccupant.proto
@@ -6,7 +6,7 @@ import "osi_common.proto";
 import "osi_occupant.proto";
 import "osi_detectedobject.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A vehicle occupant as detected and perceived by an interior sensor.
diff --git a/osi_environment.proto b/osi_environment.proto
index 969214c03..87d095316 100644
--- a/osi_environment.proto
+++ b/osi_environment.proto
@@ -2,7 +2,7 @@ syntax = "proto2";
 
 option optimize_for = SPEED;
 
-package osi;
+package osi3;
 
 //
 // \brief The conditions of the environment.
diff --git a/osi_featuredata.proto b/osi_featuredata.proto
index d89b1e31b..863cca525 100644
--- a/osi_featuredata.proto
+++ b/osi_featuredata.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief Interface for sensor data, in contrast to interpreted data after
diff --git a/osi_groundtruth.proto b/osi_groundtruth.proto
index 8067129ef..01ab3da3f 100644
--- a/osi_groundtruth.proto
+++ b/osi_groundtruth.proto
@@ -10,7 +10,7 @@ import "osi_lane.proto";
 import "osi_object.proto";
 import "osi_occupant.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief The ground truth information from the simulation environment.
diff --git a/osi_hostvehicledata.proto b/osi_hostvehicledata.proto
index 77461d7df..957ddb8ff 100644
--- a/osi_hostvehicledata.proto
+++ b/osi_hostvehicledata.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief Interface for host vehicle data that is available to sensors and
diff --git a/osi_landmark.proto b/osi_landmark.proto
index 186232072..548c9af1c 100644
--- a/osi_landmark.proto
+++ b/osi_landmark.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A traffic sign.
diff --git a/osi_lane.proto b/osi_lane.proto
index b1797ae8c..d34fbd0d7 100644
--- a/osi_lane.proto
+++ b/osi_lane.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A lane in the road network.
diff --git a/osi_modelinternal.proto b/osi_modelinternal.proto
index 8da961b0b..caff713b8 100644
--- a/osi_modelinternal.proto
+++ b/osi_modelinternal.proto
@@ -5,7 +5,7 @@ option optimize_for = SPEED;
 import "osi_featuredata.proto";
 import "osi_object.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief Additional internal data and state flags for \c SensorData objects.
diff --git a/osi_object.proto b/osi_object.proto
index 59cabcdee..b09da2c2c 100644
--- a/osi_object.proto
+++ b/osi_object.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief A vehicle (host or other).
diff --git a/osi_occupant.proto b/osi_occupant.proto
index f4dea97f8..67d91419d 100644
--- a/osi_occupant.proto
+++ b/osi_occupant.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief An occupant of a host vehicle, especially the driver of the vehicle.
diff --git a/osi_sensordata.proto b/osi_sensordata.proto
index 32501cf3a..ea1b1de0f 100644
--- a/osi_sensordata.proto
+++ b/osi_sensordata.proto
@@ -11,7 +11,7 @@ import "osi_detectedoccupant.proto";
 import "osi_sensorview.proto";
 import "osi_featuredata.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief The sensor information derived from \c GroundTruth and processed by
diff --git a/osi_sensorspecific.proto b/osi_sensorspecific.proto
index b1dc5cf54..f17038c7e 100644
--- a/osi_sensorspecific.proto
+++ b/osi_sensorspecific.proto
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "osi_common.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief Message encapsulates all data for detected objects that is specific to
diff --git a/osi_sensorview.proto b/osi_sensorview.proto
index 6100f9d83..f566cd9ae 100644
--- a/osi_sensorview.proto
+++ b/osi_sensorview.proto
@@ -8,7 +8,7 @@ import "osi_groundtruth.proto";
 import "osi_sensorviewconfiguration.proto";
 import "osi_hostvehicledata.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief The sensor view as derived from \c GroundTruth and used as
@@ -292,4 +292,4 @@ message UltrasonicSensorView
     // Ultrasonic Input Configuration valid at the time the data was created.
     //
     optional UltrasonicSensorViewConfiguration view_configuration = 1;
-}
\ No newline at end of file
+}
diff --git a/osi_sensorviewconfiguration.proto b/osi_sensorviewconfiguration.proto
index 7eec04c21..fa56e1421 100644
--- a/osi_sensorviewconfiguration.proto
+++ b/osi_sensorviewconfiguration.proto
@@ -5,7 +5,7 @@ option optimize_for = SPEED;
 import "osi_common.proto";
 import "osi_version.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief The configuration settings for the \c SensorView to be provided
diff --git a/osi_version.proto.in b/osi_version.proto.in
index 3cf8e80f5..c807dbc1b 100644
--- a/osi_version.proto.in
+++ b/osi_version.proto.in
@@ -4,7 +4,7 @@ option optimize_for = SPEED;
 
 import "google/protobuf/descriptor.proto";
 
-package osi;
+package osi3;
 
 //
 // \brief The interface version number.
diff --git a/setup.py b/setup.py
index 43b5d67d7..751d8b46d 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
             lineConfigured = lineConfigured.replace('@VERSION_PATCH@',str(VERSION_PATCH))
             fout.write(lineConfigured)
 
-package_name = 'osi'
+package_name = 'osi3'
 package_path = os.path.join(os.getcwd(), package_name)
 
 class GenerateProtobuf(install):