diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index cb06536d..9ee60f7e 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/repo-automation-bots/owlbot-python:latest
-  digest: sha256:5ff7446edeaede81c3ed58b23a4e76a5403fba1350ce28478045657303b6479d
+  digest: sha256:aea14a583128771ae8aefa364e1652f3c56070168ef31beb203534222d842b8b
diff --git a/.kokoro/samples/python3.6/periodic-head.cfg b/.kokoro/samples/python3.6/periodic-head.cfg
index f9cfcd33..714045a7 100644
--- a/.kokoro/samples/python3.6/periodic-head.cfg
+++ b/.kokoro/samples/python3.6/periodic-head.cfg
@@ -7,5 +7,5 @@ env_vars: {
 
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-pubsub/.kokoro/test-samples-against-head.sh"
+    value: "github/python-datastore/.kokoro/test-samples-against-head.sh"
 }
diff --git a/.kokoro/samples/python3.7/periodic-head.cfg b/.kokoro/samples/python3.7/periodic-head.cfg
index f9cfcd33..714045a7 100644
--- a/.kokoro/samples/python3.7/periodic-head.cfg
+++ b/.kokoro/samples/python3.7/periodic-head.cfg
@@ -7,5 +7,5 @@ env_vars: {
 
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-pubsub/.kokoro/test-samples-against-head.sh"
+    value: "github/python-datastore/.kokoro/test-samples-against-head.sh"
 }
diff --git a/.kokoro/samples/python3.8/periodic-head.cfg b/.kokoro/samples/python3.8/periodic-head.cfg
index f9cfcd33..714045a7 100644
--- a/.kokoro/samples/python3.8/periodic-head.cfg
+++ b/.kokoro/samples/python3.8/periodic-head.cfg
@@ -7,5 +7,5 @@ env_vars: {
 
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-pubsub/.kokoro/test-samples-against-head.sh"
+    value: "github/python-datastore/.kokoro/test-samples-against-head.sh"
 }
diff --git a/.kokoro/samples/python3.9/periodic-head.cfg b/.kokoro/samples/python3.9/periodic-head.cfg
index f9cfcd33..714045a7 100644
--- a/.kokoro/samples/python3.9/periodic-head.cfg
+++ b/.kokoro/samples/python3.9/periodic-head.cfg
@@ -7,5 +7,5 @@ env_vars: {
 
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/python-pubsub/.kokoro/test-samples-against-head.sh"
+    value: "github/python-datastore/.kokoro/test-samples-against-head.sh"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7d6a1a6..91b6b852 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 [1]: https://pypi.org/project/google-cloud-datastore/#history
 
+### [2.1.6](https://www.github.com/googleapis/python-datastore/compare/v2.1.5...v2.1.6) (2021-07-26)
+
+
+### Documentation
+
+* add Samples section to CONTRIBUTING.rst ([#195](https://www.github.com/googleapis/python-datastore/issues/195)) ([f607fb5](https://www.github.com/googleapis/python-datastore/commit/f607fb544a2f7279267e5a5a534fc31e573b6b74))
+
+
 ### [2.1.5](https://www.github.com/googleapis/python-datastore/compare/v2.1.4...v2.1.5) (2021-07-20)
 
 
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 63d4d9de..5cb48ca7 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -202,6 +202,30 @@ Build the docs via:
 
    $ nox -s docs
 
+*************************
+Samples and code snippets
+*************************
+
+Code samples and snippets live in the `samples/` catalogue. Feel free to
+provide more examples, but make sure to write tests for those examples.
+Each folder containing example code requires its own `noxfile.py` script
+which automates testing. If you decide to create a new folder, you can
+base it on the `samples/snippets` folder (providing `noxfile.py` and
+the requirements files).
+
+The tests will run against a real Google Cloud Project, so you should
+configure them just like the System Tests.
+
+- To run sample tests, you can execute::
+
+   # Run all tests in a folder
+   $ cd samples/snippets
+   $ nox -s py-3.8
+
+   # Run a single sample test
+   $ cd samples/snippets
+   $ nox -s py-3.8 -- -k <name of test>
+
 ********************************************
 Note About ``README`` as it pertains to PyPI
 ********************************************
diff --git a/google/cloud/datastore/version.py b/google/cloud/datastore/version.py
index 54b693bd..5c544dae 100644
--- a/google/cloud/datastore/version.py
+++ b/google/cloud/datastore/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.1.5"
+__version__ = "2.1.6"