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| 1 | +.. _ncs_release_notes_331: |
| 2 | + |
| 3 | +|NCS| v3.3.1 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, nRF54, 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 the following changes on top of the :ref:`nRF Connect SDK v3.3.0 <ncs_release_notes_330>`. |
| 20 | +The changes affect the nRF54L Series, Bluetooth®, and the Peripheral samples. |
| 21 | + |
| 22 | +Added the following features as supported: |
| 23 | + |
| 24 | +* Bluetooth: |
| 25 | + |
| 26 | + * Support for Bluetooth Core version 6.3. |
| 27 | + * Support for Channel Sounding Inline Phase Correction Term (CS IPT). |
| 28 | + This feature allows a CS Initiator to calculate distance without exchanging tone data over the ACL, resulting in faster and more power-efficient distance estimation. |
| 29 | + |
| 30 | +* Fixed an issue where USB battery charging detection operated correctly only during the first cable connection after an SoC reset. |
| 31 | + |
| 32 | +Release tag |
| 33 | +*********** |
| 34 | + |
| 35 | +The release tag for the |NCS| manifest repository (|ncs_repo|) is **v3.3.1**. |
| 36 | +Check the :file:`west.yml` file for the corresponding tags in the project repositories. |
| 37 | + |
| 38 | +To use this release, check out the tag in the manifest repository and run ``west update``. |
| 39 | +See :ref:`cloning_the_repositories` and :ref:`gs_updating_repos_examples` for more information. |
| 40 | + |
| 41 | +For information on the included repositories and revisions, see `Repositories and revisions for v3.3.1`_. |
| 42 | + |
| 43 | +IDE and tool support |
| 44 | +******************** |
| 45 | + |
| 46 | +`nRF Connect extension for Visual Studio Code <nRF Connect for Visual Studio Code_>`_ is the recommended IDE for |NCS| v3.3.1. |
| 47 | +See the :ref:`installation` section for more information about supported operating systems and toolchain. |
| 48 | + |
| 49 | +Supported modem firmware |
| 50 | +************************ |
| 51 | + |
| 52 | +See the following documentation for an overview of which modem firmware versions have been tested with this version of the |NCS|: |
| 53 | + |
| 54 | +* `Modem firmware compatibility matrix for the nRF9151 SoC`_ |
| 55 | +* `Modem firmware compatibility matrix for the nRF9160 SoC`_ |
| 56 | + |
| 57 | +Use the latest version of the `Programmer app`_ of `nRF Connect for Desktop`_ to update the modem firmware. |
| 58 | +See `Programming nRF91 Series DK firmware`_ for instructions. |
| 59 | + |
| 60 | +Modem-related libraries and versions |
| 61 | +==================================== |
| 62 | + |
| 63 | +.. list-table:: Modem-related libraries and versions |
| 64 | + :widths: 15 10 |
| 65 | + :header-rows: 1 |
| 66 | + |
| 67 | + * - Library name |
| 68 | + - Version information |
| 69 | + * - Modem library |
| 70 | + - `Changelog <Modem library changelog for v3.3.1_>`_ |
| 71 | + * - LwM2M carrier library |
| 72 | + - `Changelog <LwM2M carrier library changelog for v3.3.1_>`_ |
| 73 | + |
| 74 | +Known issues |
| 75 | +************ |
| 76 | + |
| 77 | +Known issues are only tracked for the latest official release. |
| 78 | +See `known issues for nRF Connect SDK v3.3.1`_ for the list of issues valid for the latest release. |
| 79 | + |
| 80 | +.. _ncs_release_notes_331_changelog: |
| 81 | + |
| 82 | +Changelog |
| 83 | +********* |
| 84 | + |
| 85 | +The following sections provide detailed lists of changes by component. |
| 86 | + |
| 87 | +Developing with nRF54L Series |
| 88 | +============================= |
| 89 | + |
| 90 | +* Updated builds without Partition Manager to generate the :file:`bootconf.hex` file when |NSIB| is used as the bootloader. |
| 91 | + |
| 92 | +Samples |
| 93 | +======= |
| 94 | + |
| 95 | +This section provides detailed lists of changes by :ref:`sample <samples>`. |
| 96 | + |
| 97 | +Bluetooth samples |
| 98 | +----------------- |
| 99 | + |
| 100 | +* Added the :ref:`channel_sounding_ipt_initiator` and :ref:`channel_sounding_ipt_reflector` samples to demonstrate how to use the Bluetooth Channel Sounding (CS) Inline Phase Correction Term Transfer (IPT) feature. |
| 101 | + |
| 102 | +Peripheral samples |
| 103 | +------------------ |
| 104 | + |
| 105 | +* :ref:`radio_test` sample: |
| 106 | + |
| 107 | + * Added the ``set_channel_sequence_hopping_mode`` shell command to set the hopping mode for the channel sequence. |
| 108 | + |
| 109 | +Zephyr |
| 110 | +====== |
| 111 | + |
| 112 | +The Zephyr fork in |NCS| (``sdk-zephyr``) contains all commits from the upstream Zephyr repository up to and including ``93b5f19f994b9a9376985299c1427a1630f6950e``. |
| 113 | + |
| 114 | +For a complete list of |NCS| specific commits and cherry-picked commits since v3.3.0, run the following command: |
| 115 | + |
| 116 | +.. code-block:: none |
| 117 | +
|
| 118 | + git log --oneline manifest-rev ^ncs-v3.3.0 |
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