.. include:: vars.rst

.. _section-release-notes:

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

Supported Platforms
-------------------
|CDS| is supported on the platforms listed in
:numref:`TableSupportedPlatforms`. 

.. list-table:: Supported Platforms in 6.1.0
    :name: TableSupportedPlatforms
    :widths: 10 90
    :header-rows: 1

    * - Platform
      - Operating System
    *
      - Linux®
      - All Linux platforms on x64 CPUs in the |CORE_RELNOTES| with the 
        same version number, except SUSE® Linux Enterprise Server.
    *
      - macOS®
      - All macOS platforms in the |CORE_RELNOTES| with the same version 
        number.
    *
      - Windows®
      - All Windows platforms in the |CORE_RELNOTES| with the same version 
        number.

Note: POSIX®-compliant architectures that end with "FACE_GP" are not
supported and custom platforms are not supported.

Compatibility
-------------
For backward compatibility information between |CDS| 6.1.0 and
previous releases, please see the *Migration Guide* on the
`RTI Community portal <https://community.rti.com/Documentation/>`_.

Connext DDS Compatibility
^^^^^^^^^^^^^^^^^^^^^^^^^
|CDS| can be used to provide discovery for applications built with
*RTI Connext DDS*, except as noted below.

- Starting in *RTI Connext DDS* 5.1.0, the default ``message_size_max`` for the
  UDPv4, UDPv6, TCP, Secure WAN, and shared-memory transports changed to provide
  better out-of-the-box performance. |CDS| also uses the new value for
  ``message_size_max``. Consequently, |CDS| is not out-of-the-box compatible
  with applications running older versions of |CONNEXT|. Please see the
  |CORE_RELNOTES| for instructions on how to
  resolve this compatibility issue with older |CONNEXT| applications.

What's New in 6.1.0
-------------------

New platforms
^^^^^^^^^^^^^
|CDS| now includes support for these platforms:

- macOS 10.15 (x64)
- Red Hat® Enterprise Linux 7.6 (x64)
- Ubuntu® 20.04 LTS (x64)

For more information on these platforms, see the |CORE_PLATNOTES|.

Removed platforms
^^^^^^^^^^^^^^^^^

These platforms are no longer supported:

- 32-bit Linux and Windows platforms
- macOS 10.12
- Ubuntu 12.04 LTS 
 
 
Advanced logging support
^^^^^^^^^^^^^^^^^^^^^^^^

.. CDS-47 

This release provides you with more context while troubleshooting, 
and helps RTI Support better diagnose problems when inspecting a
log file.

For information on the various logging verbosities, see
:ref:`section-cloud-discovery-service-command-line-parameters`.

Remote monitoring support
^^^^^^^^^^^^^^^^^^^^^^^^^

.. CDS-48

This release adds support for remote monitoring. This allows
you to enable the publication of samples on the three
standard monitoring topics (Config, Event and Periodic). 
It also provides a way to check the health of the service when
deployed in production. 

For details, including the metrics published by |CDS|, see 
:ref:`section-cloud-discovery-service-monitoring`.

Remote administration support
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. CDS-56

This release adds support for remote administration. This
allows you to issue remote commands to control the service
and inspect its internal state. For details, see
:ref:`section-cloud-discovery-service-administration`.

Service API support for C and Modern C++
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. CDS-57

This release adds support for the Service API in the C and
Modern C++ languages. This allows you to integrate |CDS| as
a component in your own application. 
For details, see :ref:`section-sdk`.



What's Fixed in 6.1.0
---------------------

Memory leak after receiving repeat discovery announcement if role_name or name set in DomainParticipant's ENTITY_NAME QosPolicy
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

When |CDS| received a repeat discovery announcement from an existing
*DomainParticipant*, it leaked memory if either the ``name`` or ``role_name``
was set in the *DomainParticipant's* ENTITY_NAME QosPolicy. 
This problem has been resolved.

[RTI Issue ID CDS-74]

Crash when a dispose or update participant announcement was received
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

In previous releases of |CDS|, on some Windows architectures, if a dispose
or update participant announcement was received, it would result in a crash.
This was due to an issue when trying to look up an inserted value. This 
problem has been resolved.

[RTI Issue ID CDS-80]