diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00a8aae50..98e9c8e18 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,29 @@
 [1]: https://pypi.org/project/google-cloud-pubsub/#history
 
 
+## [2.10.0](https://github.com/googleapis/python-pubsub/compare/v2.9.0...v2.10.0) (2022-03-04)
+
+
+### Features
+
+* add api key support ([#571](https://github.com/googleapis/python-pubsub/issues/571)) ([cdda762](https://github.com/googleapis/python-pubsub/commit/cdda762f6d15d96f5e2d7fac975f3494dc49eaa9))
+* add exactly once delivery flag ([#577](https://github.com/googleapis/python-pubsub/issues/577)) ([d6614e2](https://github.com/googleapis/python-pubsub/commit/d6614e274328c58449e67dfc788e2e7986c0c10b))
+* add support for exactly once delivery ([#578](https://github.com/googleapis/python-pubsub/issues/578)) ([95a86fa](https://github.com/googleapis/python-pubsub/commit/95a86fa5f528701b760064f0cece0efa4e60cd44))
+* exactly-once delivery support ([#550](https://github.com/googleapis/python-pubsub/issues/550)) ([2fb6e15](https://github.com/googleapis/python-pubsub/commit/2fb6e1533192ae81dceee5c71283169a0a85a015))
+
+
+### Bug Fixes
+
+* **deps:** move libcst to extras ([#585](https://github.com/googleapis/python-pubsub/issues/585)) ([0846762](https://github.com/googleapis/python-pubsub/commit/084676243ca4afd54cda601e589b80883f9703a3))
+* refactor client classes for safer type checking ([#552](https://github.com/googleapis/python-pubsub/issues/552)) ([7f705be](https://github.com/googleapis/python-pubsub/commit/7f705beb927383f14b9d56f0341ee0de101f7c05))
+* resolve DuplicateCredentialArgs error when using credentials_file ([8ca8cf2](https://github.com/googleapis/python-pubsub/commit/8ca8cf27333baf823a1dffd081e63079f1a12625))
+
+
+### Documentation
+
+* add autogenerated code snippets ([aa3754c](https://github.com/googleapis/python-pubsub/commit/aa3754cf432bd02be2734a23a32d5b36cd216aee))
+* Docs have inconsistent default values for max_latency and max_bytes ([#572](https://github.com/googleapis/python-pubsub/issues/572)) ([d136dfd](https://github.com/googleapis/python-pubsub/commit/d136dfdb69ebeebd1411a1415f863b94d07078f0))
+
 ## [2.9.0](https://www.github.com/googleapis/python-pubsub/compare/v2.8.0...v2.9.0) (2021-11-10)
 
 
diff --git a/noxfile.py b/noxfile.py
index ba16d5a46..e9fea8af8 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -146,9 +146,6 @@ def default(session):
     session.install("-e", ".", "-c", constraints_path)
 
     # Run py.test against the unit tests.
-    # THe following flags are useful during development:
-    # "-s" -> show print() statement output
-    # "-k <test case prefix>" -> filter test cases
     session.run(
         "py.test",
         "--quiet",
@@ -159,7 +156,6 @@ def default(session):
         "--cov-config=.coveragerc",
         "--cov-report=",
         "--cov-fail-under=0",
-        "-s",
         os.path.join("tests", "unit"),
         *session.posargs,
     )
@@ -204,9 +200,6 @@ def system(session):
     session.install("-e", ".", "-c", constraints_path)
 
     # Run py.test against the system tests.
-    # THe following flags are useful during development:
-    # "-s" -> show print() statement output
-    # "-k <test case prefix>" -> filter test cases
     if system_test_exists:
         session.run(
             "py.test",
@@ -233,8 +226,7 @@ def cover(session):
     test runs (not system test runs), and then erases coverage data.
     """
     session.install("coverage", "pytest-cov")
-    # Tip: The "-i" flag lets you ignore errors with specific files.
-    session.run("coverage", "report", "-i", "--show-missing", "--fail-under=100")
+    session.run("coverage", "report", "--show-missing", "--fail-under=100")
 
     session.run("coverage", "erase")
 
diff --git a/setup.py b/setup.py
index 5423bbb0d..e1b259bd6 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-pubsub"
 description = "Google Cloud Pub/Sub API client library"
-version = "2.9.0"
+version = "2.10.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'