.. _release_notes:

=============
Release Notes
=============

|cp| 5.2.1 Release Notes
========================

This is a bugfix release of |cp| that provides Confluent users with Apache Kafka 2.2.0, the latest stable version of
Kafka and additional bug fixes.

You are encouraged to upgrade to |cp| 5.2.1, because it includes important bug fixes. The technical details of this release
are summarized below.

.. contents::
    :local:
    :depth: 2

Commercial Features
^^^^^^^^^^^^^^^^^^^

|c3-short|
""""""""""
The |c3-short| System Health page in Firefox browser now renders correctly. For more information on supported browsers,
see :ref:`supported-browsers`.

Community Features
^^^^^^^^^^^^^^^^^^

Apache Kafka 2.2.0-cp2
""""""""""""""""""""""
* `PR-6489 <https://github.com/apache/kafka/pull/6489>`_ - KAFKA-8150: Fix bugs in handling null arrays in generated RPC code (#6489)
* `PR-6342 <https://github.com/apache/kafka/pull/6342>`_ - KAFKA-8014: Extend Connect integration tests to add and remove workers dynamically (#6342)
* `PR-6484 <https://github.com/apache/kafka/pull/6484>`_ - KAFKA-8142: Fix NPE for nulls in Headers (#6484)
* `PR-6482 <https://github.com/apache/kafka/pull/6482>`_ - KAFKA-7989: RequestQuotaTest should wait for quota config change before running tests (#6482)

.. _known_issues:

Known Issues
^^^^^^^^^^^^
None.

.. _release_notes-download:

How to Download
===============

|cp| is available for download at https://www.confluent.io/download/. See the :ref:`installation` section for detailed information.

To upgrade |cp| to a newer version, check the :ref:`upgrade` documentation.

.. _release_notes-sup-version:

Supported Versions and Interoperability
=======================================

For the supported versions and interoperability of |cp| and its components, see :ref:`interoperability-versions`.

.. _release_notes-question:

Questions?
==========

If you have questions regarding this release, feel free to reach out via the
`community mailing list <https://groups.google.com/forum/?pli=1#!forum/confluent-platform>`__ or `community Slack <https://slackpass.io/confluentcommunity>`__.
Confluent customers are encouraged to contact our support directly.