diff --git a/.kokoro/samples/python3.6/periodic-head.cfg b/.kokoro/samples/python3.6/periodic-head.cfg
index f9cfcd33e..343d23602 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-compute/.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 f9cfcd33e..343d23602 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-compute/.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 f9cfcd33e..343d23602 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-compute/.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 f9cfcd33e..343d23602 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-compute/.kokoro/test-samples-against-head.sh"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e18799b1..933333020 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,24 @@
 # Changelog
 
+### [0.4.2](https://www.github.com/googleapis/python-compute/compare/v0.4.1...v0.4.2) (2021-07-26)
+
+### Bug Fixes
+
+* **deps:** pin 'google-{api,cloud}-core', 'google-auth' to allow 2.x versions ([#81](https://www.github.com/googleapis/python-compute/issues/81)) ([1163f2b](https://www.github.com/googleapis/python-compute/commit/1163f2bb15f0e042bdd9562a31ad2ac7f39e3536))
+
+
+### Documentation
+
+* samples docstring and comments update ([#69](https://www.github.com/googleapis/python-compute/issues/69)) ([2d53eb1](https://www.github.com/googleapis/python-compute/commit/2d53eb1839a8751945ba7cdf12991f2970893df2))
+* adding samples for default values ([#64](https://www.github.com/googleapis/python-compute/issues/64)) ([553e389](https://www.github.com/googleapis/python-compute/commit/553e3891179c2719a57d398ffc26c1459945bf4d))
+
+
+### Miscellaneous Chores
+
+* release as 0.4.2 ([#84](https://www.github.com/googleapis/python-compute/issues/84)) ([dc77c0c](https://www.github.com/googleapis/python-compute/commit/dc77c0c55eef9cc1c2e515137fe66b4d4afca77e))
+* Kokoro uses separate project for concurent tests. ([#83](https://www.github.com/googleapis/python-compute/issues/83)) ([40afb33](https://www.github.com/googleapis/python-compute/commit/40afb333a963717853f70410a7a08eda5492418c))
+
+
 ### [0.4.1](https://www.github.com/googleapis/python-compute/compare/v0.4.0...v0.4.1) (2021-06-16)
 
 
diff --git a/samples/snippets/requirements-test.txt b/samples/snippets/requirements-test.txt
index 766c3d336..444dff8b3 100644
--- a/samples/snippets/requirements-test.txt
+++ b/samples/snippets/requirements-test.txt
@@ -1,2 +1,2 @@
 pytest==6.2.4
-google-cloud-storage==1.41.0
\ No newline at end of file
+google-cloud-storage==1.41.1
\ No newline at end of file
diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index c7973f448..102dfdfe8 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1 +1 @@
-google-cloud-compute==0.4.1
\ No newline at end of file
+google-cloud-compute==0.4.2
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 441dd3017..942c3d5b8 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "0.4.1"
+version = "0.4.2"
 
 package_root = os.path.abspath(os.path.dirname(__file__))
 
diff --git a/synth.metadata b/synth.metadata
index 5a69bd2c5..06ab16328 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-compute.git",
-        "sha": "1163f2bb15f0e042bdd9562a31ad2ac7f39e3536"
+        "sha": "40afb333a963717853f70410a7a08eda5492418c"
       }
     },
     {