doc: Add release notes for the 2.9.0 release

[peknis]

Add release notes for NCS v2.9.0 release.

• Update webinar link
• Make release notes ready for review
• Clean changelog
• Add finalized highlights to the release notes
• Migration guide cleanup

[NordicBuilder]

CI Information

^{To view the history of this post, clich the 'edited' button above}
Build number: 60

Inputs:

Sources:

more details

Github labels

Enabled	Name	Description
	ci-disabled	Disable the ci execution
	ci-all-test	Run all of ci, no test spec filtering will be done
	ci-force-downstream	Force execution of downstream even if twister fails
	ci-run-twister	Force run twister
	ci-run-zephyr-twister	Force run zephyr twister

List of changed files detected by CI (0)

Outputs:

Toolchain

Version:
Build docker image:

Test Spec & Results: ✅ Success; ❌ Failure; 🟠 Queued; 🟡 Progress; ◻️ Skipped; ⚠️ Quarantine

• ◻️ Toolchain
• ◻️ Build twister
• ◻️ Integration tests

Note: This message is automatically posted and updated by the CI

[kapi-no]

This changelog entry is already part of the NCS 2.8. Please remove the following

Suggested change

	* Added semantic version support to :ref:`nrf_desktop_config_channel_script` Python script for devices that use the SUIT DFU.

[maciejbaczmanski]

For Thread samples please add:

* :ref:`ot_cli_sample` sample:

  * Added support for the ``nrf54l15dk/nrf54l10/cpuapp`` target.

* :ref:`ot_coprocessor_sample` sample:

  * Added support for the ``nrf54l15dk/nrf54l10/cpuapp`` and ``nrf54l15dk/nrf54l05/cpuapp`` targets.

for Matter samples please add:

* :ref:`matter_template_sample` sample:

  * Added support for the ``nrf54l15dk/nrf54l10/cpuapp`` target.

* :ref:`matter_smoke_co_alarm_sample` sample:

  * Added support for the ``nrf54l15dk/nrf54l10/cpuapp`` target.

[MarekPieta]

Please add my release note moved from #19238

* :ref:`nrf_desktop_config_channel_script` Python script:

  * Added support for pure ED25519 signature (used by nRF54L based devices that enable MCUboot hardware cryptography).
    This requires using ``imgtool`` supporting pure ED25519 signature that can be installed from ``sdk-mcuboot`` repository.
    See the script documentation page for details.

[peknis]

• Added support for the nrf54l15dk/nrf54l10/cpuapp target.

@maciejbaczmanski shall we remove the item * Added support for ICD dynamic SIT LIT switching (DSLS) from the Smoke and CO sample entries?

[maciejbaczmanski]

• Added support for the nrf54l15dk/nrf54l10/cpuapp target.

@maciejbaczmanski shall we remove the item * Added support for ICD dynamic SIT LIT switching (DSLS) from the Smoke and CO sample entries?

I think it should be kept as well, @ArekBalysNordic @kkasperczyk-no ?

[FrancescoSer]

Hey @pekka, these items should go back to the changelog, as they are going to be part of the 2.9-nrf54h20 release, if documenting the inclusion of features exclusive to H20. If these are not exclusive, they should be duplicated in the changelog, to be later added to the also to the 2.9-nrf54h20 release notes

[FrancescoSer]

Hi @peknis, please move this entry back to the changelog, it is relevant for 2.9-nRF54H20.

[rlubos]

Zephyr SHAs look file, mcuboot needs an update I think.

[peknis]

@FrancescoSer and @b-gent Removed changelog entries need to be added in the 2.9 post-release PR.

[kapi-no]

The changelog entries were inconsistently applied for the nRF54H20 target. Some entries are presented in the NCS 2.9.0 release notes:

  * Configurations of the following Bluetooth samples to make the :ref:`Zephyr Memory Storage (ZMS) <zephyr:zms_api>` the default settings backend for all board targets that use the MRAM technology:

      * :ref:`bluetooth_central_hids`
      * :ref:`peripheral_hids_keyboard`
      * :ref:`peripheral_hids_mouse`
      * :ref:`central_and_peripheral_hrs`
      * :ref:`central_bas`
      * :ref:`central_nfc_pairing`
      * :ref:`central_uart`
      * :ref:`peripheral_bms`
      * :ref:`peripheral_cgms`
      * :ref:`peripheral_cts_client`
      * :ref:`peripheral_lbs`
      * :ref:`peripheral_mds`
      * :ref:`peripheral_nfc_pairing`
      * :ref:`power_profiling`
      * :ref:`peripheral_rscs`
      * :ref:`peripheral_status`
      * :ref:`peripheral_uart`
      * :ref:`ble_rpc_host`

while others have been moved out of the NCS 2.9 release notes

  * The :ref:`nrf_desktop_settings_loader` to make the :ref:`Zephyr Memory Storage (ZMS) <zephyr:zms_api>` the default settings backend for all board targets that use the MRAM technology.
    As a result, all :ref:`zephyr:nrf54h20dk_nrf54h20` configurations were migrated from the NVS settings backend to the ZMS settings backend.

Could list at least 5 more examples of this inconsistency.