diff --git a/.ci/ansible_install.py b/.ci/ansible_install.py
index 7b5d5657..63dbe563 100755
--- a/.ci/ansible_install.py
+++ b/.ci/ansible_install.py
@@ -4,10 +4,6 @@ import ci_lib
 
 batches = [
     [
-        # Must be installed separately, as PyNACL indirect requirement causes
-        # newer version to be installed if done in a single pip run.
-        # Separately install ansible based on version passed in from azure-pipelines.yml or .travis.yml
-        'pip install "pycparser<2.19" "idna<2.7"',
         'pip install '
             '-r tests/requirements.txt '
             '-r tests/ansible/requirements.txt',
diff --git a/.ci/ansible_tests.py b/.ci/ansible_tests.py
index b2aa3199..665e2c60 100755
--- a/.ci/ansible_tests.py
+++ b/.ci/ansible_tests.py
@@ -70,7 +70,7 @@ with ci_lib.Fold('job_setup'):
 with ci_lib.Fold('ansible'):
     playbook = os.environ.get('PLAYBOOK', 'all.yml')
     try:
-        run('./run_ansible_playbook.py %s -i "%s" -vvv %s',
+        run('./run_ansible_playbook.py %s -i "%s" %s',
             playbook, HOSTS_DIR, ' '.join(sys.argv[1:]))
     except:
         pause_if_interactive()
diff --git a/.ci/azure-pipelines.yml b/.ci/azure-pipelines.yml
index c22dcf6c..bde7fa87 100644
--- a/.ci/azure-pipelines.yml
+++ b/.ci/azure-pipelines.yml
@@ -3,6 +3,11 @@
 # Add steps that analyze code, save the dist with the build record, publish to a PyPI-compatible index, and more:
 # https://docs.microsoft.com/azure/devops/pipelines/languages/python
 
+# User defined variables are also injected as environment variables
+# https://docs.microsoft.com/en-us/azure/devops/pipelines/process/variables#environment-variables
+#variables:
+  #ANSIBLE_VERBOSITY: 3
+
 jobs:
 
 - job: Mac
diff --git a/.ci/ci_lib.py b/.ci/ci_lib.py
index 513ac98c..428d3ab9 100644
--- a/.ci/ci_lib.py
+++ b/.ci/ci_lib.py
@@ -167,7 +167,7 @@ def get_output(s, *args, **kwargs):
 
 def exists_in_path(progname):
     """
-    Return True if proganme exists in $PATH.
+    Return True if progname exists in $PATH.
 
     >>> exists_in_path('echo')
     True
diff --git a/.ci/debops_common_install.py b/.ci/debops_common_install.py
index 62519994..50d556cc 100755
--- a/.ci/debops_common_install.py
+++ b/.ci/debops_common_install.py
@@ -7,9 +7,6 @@ ci_lib.DISTROS = ['debian']
 
 ci_lib.run_batches([
     [
-        # Must be installed separately, as PyNACL indirect requirement causes
-        # newer version to be installed if done in a single pip run.
-        'pip install "pycparser<2.19"',
         'pip install -qqq "debops[ansible]==2.1.2" "ansible-base<2.10.14" "ansible=={}"'.format(ci_lib.ANSIBLE_VERSION),
     ],
     [
diff --git a/.ci/localhost_ansible_install.py b/.ci/localhost_ansible_install.py
index dba07053..e70bcf18 100755
--- a/.ci/localhost_ansible_install.py
+++ b/.ci/localhost_ansible_install.py
@@ -4,11 +4,6 @@ import ci_lib
 
 batches = [
     [
-        # Must be installed separately, as PyNACL indirect requirement causes
-        # newer version to be installed if done in a single pip run.
-        # Separately install ansible based on version passed in from azure-pipelines.yml or .travis.yml
-        # Don't set -U as that will upgrade Paramiko to a non-2.6 compatible version.
-        'pip install "pycparser<2.19" "idna<2.7" virtualenv',
         'pip install '
             '-r tests/requirements.txt '
             '-r tests/ansible/requirements.txt',
diff --git a/.ci/localhost_ansible_tests.py b/.ci/localhost_ansible_tests.py
index 6d7bef0d..13c77d96 100755
--- a/.ci/localhost_ansible_tests.py
+++ b/.ci/localhost_ansible_tests.py
@@ -46,11 +46,11 @@ with ci_lib.Fold('machine_prep'):
 
     if os.path.expanduser('~mitogen__user1') == '~mitogen__user1':
         os.chdir(IMAGE_PREP_DIR)
-        run("ansible-playbook -c local -i localhost, _user_accounts.yml -vvv")
+        run("ansible-playbook -c local -i localhost, _user_accounts.yml")
 
 
 with ci_lib.Fold('ansible'):
     os.chdir(TESTS_DIR)
     playbook = os.environ.get('PLAYBOOK', 'all.yml')
-    run('./run_ansible_playbook.py %s -l target %s -vvv',
+    run('./run_ansible_playbook.py %s -l target %s',
         playbook, ' '.join(sys.argv[1:]))
diff --git a/.ci/mitogen_install.py b/.ci/mitogen_install.py
index d51c2f17..ab9bb2f2 100755
--- a/.ci/mitogen_install.py
+++ b/.ci/mitogen_install.py
@@ -4,7 +4,6 @@ import ci_lib
 
 batches = [
     [
-        'pip install "pycparser<2.19" "idna<2.7"',
         'pip install -r tests/requirements.txt',
     ]
 ]
diff --git a/docs/changelog.rst b/docs/changelog.rst
index e7045161..75917494 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -17,8 +17,13 @@ Release Notes
 To avail of fixes in an unreleased version, please download a ZIP file
 `directly from GitHub <https://github.com/dw/mitogen/>`_.
 
-v0.3.0 (unreleased)
---------------------
+
+v0.3.1.dev0 (unreleased)
+------------------------
+
+
+v0.3.0 (2021-11-24)
+-------------------
 
 This release separates itself from the v0.2.X releases. Ansible's API changed too much to support backwards compatibility so from now on, v0.2.X releases will be for Ansible < 2.10 and v0.3.X will be for Ansible 2.10+.
 `See here for details <https://github.com/dw/mitogen pull/715#issuecomment-750697248>`_.
@@ -30,7 +35,7 @@ This release separates itself from the v0.2.X releases. Ansible's API changed to
 * :gh:issue:`847` Removed historic Continuous Integration reverse shell
 
 
-v0.2.10 (unreleased)
+v0.2.10 (2021-11-24)
 --------------------
 
 * :gh:issue:`597` mitogen does not support Ansible 2.8 Python interpreter detection
diff --git a/docs/howitworks.rst b/docs/howitworks.rst
index 05c097e5..27b109fe 100644
--- a/docs/howitworks.rst
+++ b/docs/howitworks.rst
@@ -813,7 +813,7 @@ executes under the runtime importer lock, ensuring :py:keyword:`import`
 statements executing in local threads are serialized.
 
 .. note::
-   
+
     In Python 2, :py:exc:`ImportError` is raised when :py:keyword:`import` is
     attempted while the runtime import lock is held by another thread,
     therefore imports must be serialized by only attempting them from the main
diff --git a/mitogen/__init__.py b/mitogen/__init__.py
index 9e709d7d..8df8bfe2 100644
--- a/mitogen/__init__.py
+++ b/mitogen/__init__.py
@@ -35,7 +35,7 @@ be expected. On the slave, it is built dynamically during startup.
 
 
 #: Library version as a tuple.
-__version__ = (0, 3, 0, 'rc', 1)
+__version__ = (0, 3, 1, 'dev0')
 
 
 #: This is :data:`False` in slave contexts. Previously it was used to prevent
diff --git a/mitogen/profiler.py b/mitogen/profiler.py
index bbf6086a..512a593e 100644
--- a/mitogen/profiler.py
+++ b/mitogen/profiler.py
@@ -90,7 +90,7 @@ def merge_stats(outpath, inpaths):
                     break
                 time.sleep(0.2)
 
-    stats.dump_stats(outpath)
+    pstats.dump_stats(outpath)
 
 
 def generate_stats(outpath, tmpdir):
diff --git a/setup.py b/setup.py
index bd105147..8d3c75df 100644
--- a/setup.py
+++ b/setup.py
@@ -26,6 +26,7 @@
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import ast
 import os
 
 from setuptools import find_packages, setup
@@ -37,7 +38,8 @@ def grep_version():
         for line in fp:
             if line.startswith('__version__'):
                 _, _, s = line.partition('=')
-                return '%i.%i.%i%s%i' % eval(s)
+                parts = ast.literal_eval(s.strip())
+                return '.'.join(str(part) for part in parts)
 
 
 def long_description():
diff --git a/tests/ansible/ansible.cfg b/tests/ansible/ansible.cfg
index 59752492..dfc2858e 100644
--- a/tests/ansible/ansible.cfg
+++ b/tests/ansible/ansible.cfg
@@ -5,7 +5,11 @@ strategy_plugins = ../../ansible_mitogen/plugins/strategy
 inventory_plugins = lib/inventory
 action_plugins = lib/action
 callback_plugins = lib/callback
-stdout_callback = nice_stdout
+stdout_callback = yaml
+stdout_whitelist =
+    profile_roles,
+    timer,
+    yaml
 vars_plugins = lib/vars
 library = lib/modules
 filter_plugins = lib/filters
@@ -31,6 +35,9 @@ timeout = 10
 # On Travis, paramiko check fails due to host key checking enabled.
 host_key_checking = False
 
+[callback_profile_tasks]
+task_output_limit = 10
+
 [ssh_connection]
 ssh_args = -o UserKnownHostsFile=/dev/null -o ForwardAgent=yes -o ControlMaster=auto -o ControlPersist=60s
 pipelining = True
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 21ef8166..c125a28f 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,11 +1,11 @@
 psutil==5.4.8
 coverage==4.5.1
 Django==1.6.11  # Last version supporting 2.6.
+faulthandler==3.2; python_version < '3.3'
 mock==2.0.0
 pytz==2018.5
 cffi==1.14.3  # Random pin to try and fix pyparser==2.18 not having effect
 pycparser==2.18  # Last version supporting 2.6.
-faulthandler==3.1; python_version < '3.3'  # used by testlib
 pytest-catchlog==1.2.2
 pytest==3.1.2
 timeoutcontext==1.2.0
@@ -16,3 +16,4 @@ urllib3[secure]==1.23; python_version < '2.7'
 urllib3[secure]==1.26; python_version > '2.6' and python_version < '2.7.9'
 # Last idna compatible with Python 2.6 was idna 2.7.
 idna==2.7; python_version < '2.7'
+virtualenv==20.10.0
diff --git a/tests/testlib.py b/tests/testlib.py
index 019b35d7..d40ce573 100644
--- a/tests/testlib.py
+++ b/tests/testlib.py
@@ -144,7 +144,7 @@ def wait_for_port(
 
         if not pattern:
             # Success: We connected & there's no banner check to perform.
-            sock.shutdown(socket.SHUTD_RDWR)
+            sock.shutdown(socket.SHUT_RDWR)
             sock.close()
             return