diff --git a/ci/long_running_tests/.rayproject/project.yaml b/ci/long_running_tests/.rayproject/project.yaml
index 42e982129..a3f315ed0 100644
--- a/ci/long_running_tests/.rayproject/project.yaml
+++ b/ci/long_running_tests/.rayproject/project.yaml
@@ -15,7 +15,7 @@ commands:
     params:
       - name: wheel
         help: "URL to the ray wheel to test (defaults to latest)."
-        default: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+        default: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
       - name: workload
         help: "Name of the workload to run."
         choices: ["actor_deaths", "apex", "impala", "many_actor_tasks", "many_drivers", "many_tasks", "node_failures", "pbt"]
diff --git a/doc/examples/newsreader/.rayproject/cluster.yaml b/doc/examples/newsreader/.rayproject/cluster.yaml
index 1ab3bf8ad..837479462 100644
--- a/doc/examples/newsreader/.rayproject/cluster.yaml
+++ b/doc/examples/newsreader/.rayproject/cluster.yaml
@@ -24,7 +24,7 @@ setup_commands:
   - echo 'export PATH="$HOME/anaconda3/bin:$PATH"' >> ~/.bashrc
   - sudo apt -y update
   - sudo apt -y install npm
-  - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+  - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
 
 # How Ray will authenticate with newly launched nodes.
 auth:
diff --git a/doc/source/installation.rst b/doc/source/installation.rst
index 475c399fc..c56dad898 100644
--- a/doc/source/installation.rst
+++ b/doc/source/installation.rst
@@ -34,14 +34,14 @@ master branch). To install these wheels, run the following command:
 ===================  ===================
 
 
-.. _`Linux Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp37-cp37m-manylinux1_x86_64.whl
-.. _`Linux Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
-.. _`Linux Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-manylinux1_x86_64.whl
-.. _`Linux Python 2.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27mu-manylinux1_x86_64.whl
-.. _`MacOS Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp37-cp37m-macosx_10_6_intel.whl
-.. _`MacOS Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-macosx_10_6_intel.whl
-.. _`MacOS Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-macosx_10_6_intel.whl
-.. _`MacOS Python 2.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27m-macosx_10_6_intel.whl
+.. _`Linux Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp37-cp37m-manylinux1_x86_64.whl
+.. _`Linux Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
+.. _`Linux Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-manylinux1_x86_64.whl
+.. _`Linux Python 2.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27mu-manylinux1_x86_64.whl
+.. _`MacOS Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp37-cp37m-macosx_10_6_intel.whl
+.. _`MacOS Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-macosx_10_6_intel.whl
+.. _`MacOS Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-macosx_10_6_intel.whl
+.. _`MacOS Python 2.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27m-macosx_10_6_intel.whl
 
 Building Ray from Source
 ------------------------
diff --git a/docker/tune_test/Dockerfile b/docker/tune_test/Dockerfile
index 2b6aaef15..f88b441b6 100644
--- a/docker/tune_test/Dockerfile
+++ b/docker/tune_test/Dockerfile
@@ -6,7 +6,7 @@ FROM ray-project/base-deps
 # a test runner.
 RUN conda install -y numpy
 RUN pip install -U pip
-RUN pip install -U https://ray-wheels.s3-us-west-2.amazonaws.com/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl boto3
+RUN pip install -U https://ray-wheels.s3-us-west-2.amazonaws.com/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl boto3
 # We install this after the latest wheels -- this should not override the latest wheels.
 RUN apt-get install -y zlib1g-dev
 # The following is needed to support TensorFlow 1.14
diff --git a/python/ray/__init__.py b/python/ray/__init__.py
index db0d3010c..51446b44a 100644
--- a/python/ray/__init__.py
+++ b/python/ray/__init__.py
@@ -110,7 +110,7 @@ from ray.actor import method  # noqa: E402
 from ray.runtime_context import _get_runtime_context  # noqa: E402
 
 # Ray version string.
-__version__ = "0.8.0.dev5"
+__version__ = "0.8.0.dev6"
 
 __all__ = [
     "global_state",
diff --git a/python/ray/autoscaler/aws/example-full.yaml b/python/ray/autoscaler/aws/example-full.yaml
index adc94cf44..7acaf71bd 100644
--- a/python/ray/autoscaler/aws/example-full.yaml
+++ b/python/ray/autoscaler/aws/example-full.yaml
@@ -113,9 +113,9 @@ setup_commands:
     # has your Ray repo pre-cloned. Then, you can replace the pip installs
     # below with a git checkout <your_sha> (and possibly a recompile).
     - echo 'export PATH="$HOME/anaconda3/envs/tensorflow_p36/bin:$PATH"' >> ~/.bashrc
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27mu-manylinux1_x86_64.whl
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-manylinux1_x86_64.whl
-    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27mu-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-manylinux1_x86_64.whl
+    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
     # Consider uncommenting these if you also want to run apt-get commands during setup
     # - sudo pkill -9 apt-get || true
     # - sudo pkill -9 dpkg || true
diff --git a/python/ray/autoscaler/aws/example-gpu-docker.yaml b/python/ray/autoscaler/aws/example-gpu-docker.yaml
index 809ac4949..5116ec5d6 100644
--- a/python/ray/autoscaler/aws/example-gpu-docker.yaml
+++ b/python/ray/autoscaler/aws/example-gpu-docker.yaml
@@ -105,9 +105,9 @@ file_mounts: {
 
 # List of shell commands to run to set up nodes.
 setup_commands:
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27mu-manylinux1_x86_64.whl
-    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-manylinux1_x86_64.whl
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27mu-manylinux1_x86_64.whl
+    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
 
 # Custom commands that will be run on the head node after common setup.
 head_setup_commands:
diff --git a/python/ray/autoscaler/gcp/example-full.yaml b/python/ray/autoscaler/gcp/example-full.yaml
index f0d1c9fd7..a89804dba 100644
--- a/python/ray/autoscaler/gcp/example-full.yaml
+++ b/python/ray/autoscaler/gcp/example-full.yaml
@@ -127,9 +127,9 @@ setup_commands:
       && echo 'export PATH="$HOME/anaconda3/bin:$PATH"' >> ~/.profile
 
     # Install ray
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27mu-manylinux1_x86_64.whl
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-manylinux1_x86_64.whl
-    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27mu-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-manylinux1_x86_64.whl
+    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
 
 
 # Custom commands that will be run on the head node after common setup.
diff --git a/python/ray/autoscaler/gcp/example-gpu-docker.yaml b/python/ray/autoscaler/gcp/example-gpu-docker.yaml
index 380df42fb..e99ec4422 100644
--- a/python/ray/autoscaler/gcp/example-gpu-docker.yaml
+++ b/python/ray/autoscaler/gcp/example-gpu-docker.yaml
@@ -140,9 +140,9 @@ setup_commands:
     # - echo 'export PATH="$HOME/anaconda3/envs/tensorflow_p36/bin:$PATH"' >> ~/.bashrc
 
     # Install ray
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp27-cp27mu-manylinux1_x86_64.whl
-    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp35-cp35m-manylinux1_x86_64.whl
-    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp27-cp27mu-manylinux1_x86_64.whl
+    - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp35-cp35m-manylinux1_x86_64.whl
+    # - pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
 
 # Custom commands that will be run on the head node after common setup.
 head_setup_commands:
diff --git a/python/ray/experimental/sgd/examples/example-sgd.yaml b/python/ray/experimental/sgd/examples/example-sgd.yaml
index 77a4b6ba4..a4e8149c9 100644
--- a/python/ray/experimental/sgd/examples/example-sgd.yaml
+++ b/python/ray/experimental/sgd/examples/example-sgd.yaml
@@ -47,7 +47,7 @@ worker_nodes:
     #         MarketType: spot
 
 setup_commands:
-    - ray || pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev5-cp36-cp36m-manylinux1_x86_64.whl
+    - ray || pip install -U https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.8.0.dev6-cp36-cp36m-manylinux1_x86_64.whl
     - conda install -y pytorch torchvision cudatoolkit=9.0 -c pytorch
     - pip install -U ipdb ray[rllib]
 
diff --git a/src/ray/raylet/main.cc b/src/ray/raylet/main.cc
index b4e4b744a..ead799574 100644
--- a/src/ray/raylet/main.cc
+++ b/src/ray/raylet/main.cc
@@ -65,7 +65,7 @@ int main(int argc, char *argv[]) {
   // Initialize stats.
   const ray::stats::TagsType global_tags = {
       {ray::stats::JobNameKey, "raylet"},
-      {ray::stats::VersionKey, "0.8.0.dev5"},
+      {ray::stats::VersionKey, "0.8.0.dev6"},
       {ray::stats::NodeAddressKey, node_ip_address}};
   ray::stats::Init(stat_address, global_tags, disable_stats, enable_stdout_exporter);