diff --git a/docs/source/internal/releases.rst b/docs/source/internal/releases.rst
index f15ea0c5..39fbdf72 100644
--- a/docs/source/internal/releases.rst
+++ b/docs/source/internal/releases.rst
@@ -28,9 +28,9 @@ Historically, |Flake8| has generated major releases for:
 
 - Unvendoring dependencies (2.0)
 
-- Large scale refactoring (2.0, 3.0, 5.0)
+- Large scale refactoring (2.0, 3.0, 5.0, 6.0)
 
-- Subtly breaking CLI changes (3.0, 4.0, 5.0)
+- Subtly breaking CLI changes (3.0, 4.0, 5.0, 6.0)
 
 - Breaking changes to its plugin interface (3.0)
 
diff --git a/docs/source/release-notes/6.0.0.rst b/docs/source/release-notes/6.0.0.rst
new file mode 100644
index 00000000..edb01dfa
--- /dev/null
+++ b/docs/source/release-notes/6.0.0.rst
@@ -0,0 +1,35 @@
+6.0.0 -- 2022-11-23
+-------------------
+
+You can view the `6.0.0 milestone`_ on GitHub for more details.
+
+Backwards Incompatible Changes
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Remove ``--diff`` option (See also :issue:`1389`, :pull:`1720`).
+- Produce an error when invalid codes are specified in configuration (See also
+  :issue:`1689`, :pull:`1713`).
+- Produce an error if the file specified in ``--extend-config`` does not exist
+  (See also :issue:`1729`, :pull:`1732`).
+- Remove ``optparse`` compatibility support (See also :pull:`1739`).
+
+New Dependency Information
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- pycodestyle has been updated to >= 2.10.0, < 2.11.0 (See also :pull:`1746`).
+- Pyflakes has been updated to >= 3.0.0, < 3.1.0 (See also :pull:`1748`).
+
+Features
+~~~~~~~~
+
+- Require python >= 3.8.1 (See also :pull:`1633`, :pull:`1741`).
+- List available formatters in for ``--format`` option in ``--help`` (See also
+  :issue:`223`, :pull:`1624`).
+- Improve multiprocessing performance (See also :pull:`1723`).
+- Enable multiprocessing on non-fork platforms (See also :pull:`1723`).
+- Ensure results are sorted when discovered from files (See also :issue:`1670`,
+  :pull:`1726`).
+
+.. all links
+.. _6.0.0 milestone:
+    https://github.com/PyCQA/flake8/milestone/47
diff --git a/docs/source/release-notes/index.rst b/docs/source/release-notes/index.rst
index d511f300..a9eff5f0 100644
--- a/docs/source/release-notes/index.rst
+++ b/docs/source/release-notes/index.rst
@@ -5,6 +5,12 @@
 All of the release notes that have been recorded for Flake8 are organized here
 with the newest releases first.
 
+6.x Release Series
+==================
+
+.. toctree::
+   6.0.0
+
 5.x Release Series
 ==================
 
diff --git a/src/flake8/__init__.py b/src/flake8/__init__.py
index 43f3bec2..c6d48b72 100644
--- a/src/flake8/__init__.py
+++ b/src/flake8/__init__.py
@@ -17,7 +17,7 @@
 LOG = logging.getLogger(__name__)
 LOG.addHandler(logging.NullHandler())
 
-__version__ = "5.0.4"
+__version__ = "6.0.0"
 __version_info__ = tuple(int(i) for i in __version__.split(".") if i.isdigit())
 
 _VERBOSITY_TO_LOG_LEVEL = {