doc: add release notes for v1.2.1

Add release notes for v1.2.1 and link to the documentation.

Signed-off-by: Ruth Fuchss <[email protected]>

Author: Ruth Fuchss

doc/nrf/index.rst

@@ -16,6 +16,7 @@ Documentation for different versions of the |NCS| is available at the following
 
 * `nRF Connect SDK latest documentation`_ (from the master branch)
 * `nRF Connect SDK v1.3.0 documentation`_
+* `nRF Connect SDK v1.2.1 documentation`_
 * `nRF Connect SDK v1.2.0 documentation`_
 * `nRF Connect SDK v1.1.0 documentation`_
 * `nRF Connect SDK v1.0.0 documentation`_

doc/nrf/links.txt

@@ -32,6 +32,8 @@
 
 .. _`nRF Connect SDK v1.3.0 documentation`: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.3.0/nrf/index.html
 
+.. _`nRF Connect SDK v1.2.1 documentation`: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.2.1/nrf/index.html
+
 .. _`nRF Connect SDK v1.2.0 documentation`: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.2.0/nrf/index.html
 
 .. _`nRF Connect SDK v1.1.0 documentation`: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.1.0/nrf/index.html

doc/nrf/release_notes.rst

@@ -17,6 +17,7 @@ Important issues that are discovered after a release is tagged are listed in the
    :maxdepth: 1
 
    doc/release-notes-1.3.0
+   doc/release-notes-1.2.1
    doc/release-notes-1.2.0
    doc/release-notes-1.1.0
    doc/release-notes-1.0.0

doc/release-notes-1.2.1.rst

@@ -0,0 +1,121 @@
+.. _ncs_release_notes_121:
+
+|NCS| v1.2.1 Release Notes
+##########################
+
+|NCS| delivers reference software and supporting libraries for developing low-power wireless applications with Nordic Semiconductor products.
+It includes the MCUboot and the Zephyr RTOS open source projects, which are continuously integrated and re-distributed with the SDK.
+
+|NCS| v1.2.1 supports product development with the nRF9160 Cellular IoT device.
+It contains reference applications, sample source code, and libraries for developing low-power wireless applications with nRF52 and nRF53 Series devices, though support for these devices is incomplete and not recommended for production.
+
+.. note::
+
+   Before this release, the |NCS| moved to a new GitHub organization, `nrfconnect <https://github.com/nrfconnect>`_.
+   All repositories were renamed to provide clear and concise names that better reflect the composition of the codebase.
+   If you are a new |NCS| user, there are no actions you need to take.
+   If you used previous releases of the |NCS|, you should :ref:`point your repositories to the right remotes <repo_move>`.
+
+Highlights
+**********
+
+* Updates to LwM2M carrier library
+* Updates to BSD library
+
+
+Release tag
+***********
+
+The release tag for the |NCS| manifest repository (|ncs_repo|) is **v1.2.1**.
+Check the ``west.yml`` file for the corresponding tags in the project repositories.
+
+To use this release, check out the tag in the manifest repository and run ``west update``.
+See :ref:`cloning_the_repositories_win` for more information.
+
+
+Supported modem firmware
+************************
+
+This version of the |NCS| supports the following modem firmware for cellular IoT applications:
+
+* mfw_nrf9160_1.1.2
+
+Use the nRF Programmer app of `nRF Connect for Desktop`_ to update the modem firmware.
+See `Updating the nRF9160 DK cellular modem`_ for instructions.
+
+
+Tested boards
+*************
+
+The following boards have been used during testing of this release:
+
+* PCA10090 (nRF9160 DK)
+* PCA20035 (Thingy:91)
+* PCA10095 (nRF5340 PDK)
+* PCA10056 (nRF52840 DK)
+* PCA10059 (nRF52840 Dongle)
+* PCA10040 (nRF52 DK)
+
+For the full list of supported devices and boards, see :ref:`zephyr:boards` in the Zephyr documentation.
+
+
+Required tools
+**************
+
+In addition to the tools mentioned in :ref:`gs_installing`, the following tool versions are required to work with the |NCS|:
+
+.. list-table::
+   :header-rows: 1
+
+   * - Tool
+     - Version
+     - Download link
+   * - SEGGER J-Link
+     - V6.60e
+     - `J-Link Software and Documentation Pack`_
+   * - nRF Command Line Tools
+     - v10.6.0
+     - `nRF Command Line Tools`_
+   * - nRF Connect for Desktop
+     - v3.3.0 or later
+     - `nRF Connect for Desktop`_
+   * - dtc (Linux only)
+     - v1.4.6 or later
+     - :ref:`gs_installing_tools`
+   * - GCC
+     - See :ref:`gs_installing_toolchain`
+     - `GNU Arm Embedded Toolchain`_
+
+
+As IDE, we recommend to use |SES| (Nordic Edition) version 4.52.
+It is available from the following links:
+
+* `SEGGER Embedded Studio (Nordic Edition) - Windows x86`_
+* `SEGGER Embedded Studio (Nordic Edition) - Windows x64`_
+* `SEGGER Embedded Studio (Nordic Edition) - Mac OS x64`_
+* `SEGGER Embedded Studio (Nordic Edition) - Linux x86`_
+* `SEGGER Embedded Studio (Nordic Edition) - Linux x64`_
+
+
+Change log
+**********
+
+The following sections provide detailed lists of changes by component.
+
+
+nRF9160
+=======
+
+* :ref:`lib_download_client`:
+
+  * Fixed DNS lookup when using non-default PDN.
+
+* :ref:`liblwm2m_carrier_readme`:
+
+  * Updated to version 0.8.2.
+    See the :ref:`liblwm2m_carrier_changelog` for detailed information.
+
+* :ref:`nrfxlib:bsdlib`:
+
+  * Updated to version 0.6.1.2.
+    See the :ref:`bsdlib_changelog` for detailed information.