diff --git a/docs/source/release-notes/3.9.2.rst b/docs/source/release-notes/3.9.2.rst
new file mode 100644
index 0000000..ebcada5
--- /dev/null
+++ b/docs/source/release-notes/3.9.2.rst
@@ -0,0 +1,21 @@
+3.9.2 -- 2021-05-08
+-------------------
+
+You can view the `3.9.2 milestone`_ on GitHub for more details.
+
+Bugs Fixed
+~~~~~~~~~~
+
+- Fix error message for ``E111`` in ``pycodestyle`` (See also :pull:`1328`,
+  :issue:`1327`).
+
+Deprecations
+~~~~~~~~~~~~
+
+- ``indent_size_str`` is deprecated, use ``str(indent_size)`` instead (See
+  also :pull:`1328`, :issue:`1327`).
+
+
+.. all links
+.. _3.9.2 milestone:
+    https://github.com/PyCQA/flake8/milestone/40
diff --git a/docs/source/release-notes/index.rst b/docs/source/release-notes/index.rst
index 9fcdb85..dd20253 100644
--- a/docs/source/release-notes/index.rst
+++ b/docs/source/release-notes/index.rst
@@ -9,6 +9,7 @@ with the newest releases first.
 ==================
 
 .. toctree::
+    3.9.2
     3.9.1
     3.9.0
     3.8.4
diff --git a/src/flake8/__init__.py b/src/flake8/__init__.py
index 3c7f082..27b936b 100644
--- a/src/flake8/__init__.py
+++ b/src/flake8/__init__.py
@@ -18,7 +18,7 @@ if False:  # `typing.TYPE_CHECKING` was introduced in 3.5.2
 LOG = logging.getLogger(__name__)
 LOG.addHandler(logging.NullHandler())
 
-__version__ = "3.9.1"
+__version__ = "3.9.2"
 __version_info__ = tuple(
     int(i) for i in __version__.split(".") if i.isdigit()
 )