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| 1 | +.. _ncs_release_notes_264: |
| 2 | + |
| 3 | +|NCS| v2.6.4 Release Notes |
| 4 | +########################## |
| 5 | + |
| 6 | +.. contents:: |
| 7 | + :local: |
| 8 | + :depth: 2 |
| 9 | + |
| 10 | +|NCS| delivers reference software and supporting libraries for developing low-power wireless applications with Nordic Semiconductor products in the nRF52, nRF53, nRF70, and nRF91 Series. |
| 11 | +The SDK includes open source projects (TF-M, MCUboot, OpenThread, Matter, and the Zephyr RTOS), which are continuously integrated and redistributed with the SDK. |
| 12 | + |
| 13 | +Release notes might refer to "experimental" support for features, which indicates that the feature is incomplete in functionality or verification, and can be expected to change in future releases. |
| 14 | +To learn more, see :ref:`software_maturity`. |
| 15 | + |
| 16 | +Highlights |
| 17 | +********** |
| 18 | + |
| 19 | +This patch release adds changes on top of the :ref:`nRF Connect SDK v2.6.0 <ncs_release_notes_260>`, :ref:`nRF Connect SDK v2.6.1 <ncs_release_notes_261>`, :ref:`nRF Connect SDK v2.6.2 <ncs_release_notes_262>` and :ref:`nRF Connect SDK v2.6.3 <ncs_release_notes_263>`. |
| 20 | +The changes affect Wi-Fi® interoperability. |
| 21 | + |
| 22 | +See :ref:`ncs_release_notes_264_changelog` for the complete list of changes. |
| 23 | + |
| 24 | +Release tag |
| 25 | +*********** |
| 26 | + |
| 27 | +The release tag for the |NCS| manifest repository (|ncs_repo|) is **v2.6.4**. |
| 28 | +Check the :file:`west.yml` file for the corresponding tags in the project repositories. |
| 29 | + |
| 30 | +To use this release, check out the tag in the manifest repository and run ``west update``. |
| 31 | +See :ref:`cloning_the_repositories` and :ref:`gs_updating_repos_examples` for more information. |
| 32 | + |
| 33 | +For information on the included repositories and revisions, see `Repositories and revisions for v2.6.4`_. |
| 34 | + |
| 35 | +IDE and tool support |
| 36 | +******************** |
| 37 | + |
| 38 | +`nRF Connect extension for Visual Studio Code <nRF Connect for Visual Studio Code_>`_ is the recommended IDE for |NCS| v2.6.4. |
| 39 | +See the :ref:`installation` section for more information about supported operating systems and toolchain. |
| 40 | + |
| 41 | +Supported modem firmware |
| 42 | +************************ |
| 43 | + |
| 44 | +See `Modem firmware compatibility matrix`_ for an overview of which modem firmware versions have been tested with this version of the |NCS|. |
| 45 | + |
| 46 | +Use the latest version of the nRF Programmer app of `nRF Connect for Desktop`_ to update the modem firmware. |
| 47 | +See :ref:`nrf9160_gs_updating_fw_modem` for instructions. |
| 48 | + |
| 49 | +Modem-related libraries and versions |
| 50 | +==================================== |
| 51 | + |
| 52 | +.. list-table:: Modem-related libraries and versions |
| 53 | + :widths: 15 10 |
| 54 | + :header-rows: 1 |
| 55 | + |
| 56 | + * - Library name |
| 57 | + - Version information |
| 58 | + * - Modem library |
| 59 | + - `Changelog <Modem library changelog for v2.6.4_>`_ |
| 60 | + * - LwM2M carrier library |
| 61 | + - `Changelog <LwM2M carrier library changelog for v2.6.4_>`_ |
| 62 | + |
| 63 | +Known issues |
| 64 | +************ |
| 65 | + |
| 66 | +Known issues are only tracked for the latest official release. |
| 67 | +See `known issues for nRF Connect SDK v2.6.4`_ for the list of issues valid for the latest release. |
| 68 | + |
| 69 | +.. _ncs_release_notes_264_changelog: |
| 70 | + |
| 71 | +Changelog |
| 72 | +********* |
| 73 | + |
| 74 | +The following sections provide detailed lists of changes by component. |
| 75 | + |
| 76 | +Protocols |
| 77 | +========= |
| 78 | + |
| 79 | +This section provides detailed lists of changes by :ref:`protocol <protocols>`. |
| 80 | + |
| 81 | +Wi-Fi |
| 82 | +----- |
| 83 | + |
| 84 | +* Added: |
| 85 | + |
| 86 | + * A feature to dynamically shift from PS-POLL to QoS NULL when the AP does not respond correctly to PS-POLL. |
| 87 | + * Support for enabling STBC RX in 802.11n/HT mode. |
| 88 | + * Support for enabling DHCP check filters to allow L2 and L3 address mismatches. |
| 89 | + |
| 90 | +* Fixed a memory leak in regulatory processing. |
| 91 | + |
| 92 | +Zephyr |
| 93 | +====== |
| 94 | + |
| 95 | +The Zephyr fork in |NCS| (``sdk-zephyr``) contains all commits from the upstream Zephyr repository up to and including ``23cf38934c0f68861e403b22bc3dd0ce6efbfa39``. |
| 96 | + |
| 97 | +For a complete list of |NCS| specific commits and cherry-picked commits since v2.6.0, run the following command: |
| 98 | + |
| 99 | +.. code-block:: none |
| 100 | +
|
| 101 | + git log --oneline manifest-rev ^v3.5.99-ncs1 |
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