| :orphan: |
| |
| .. _migration_4.1: |
| |
| Migration guide to Zephyr v4.1.0 (Working Draft) |
| ################################################ |
| |
| This document describes the changes required when migrating your application from Zephyr v4.0.0 to |
| Zephyr v4.1.0. |
| |
| Any other changes (not directly related to migrating applications) can be found in |
| the :ref:`release notes<zephyr_4.1>`. |
| |
| .. contents:: |
| :local: |
| :depth: 2 |
| |
| Build System |
| ************ |
| |
| Kernel |
| ****** |
| |
| Boards |
| ****** |
| |
| Modules |
| ******* |
| |
| Mbed TLS |
| ======== |
| |
| * If a platform has a CSPRNG source available (i.e. :kconfig:option:`CONFIG_CSPRNG_ENABLED` |
| is set), then the Kconfig option :kconfig:option:`CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG` |
| is the default choice for random number source instead of |
| :kconfig:option:`CONFIG_MBEDTLS_PSA_CRYPTO_LEGACY_RNG`. This helps in reducing |
| ROM/RAM footprint of the Mbed TLS library. |
| |
| Trusted Firmware-M |
| ================== |
| |
| LVGL |
| ==== |
| |
| * The config option :kconfig:option:`CONFIG_LV_Z_FLUSH_THREAD_PRIO` is now called |
| :kconfig:option:`CONFIG_LV_Z_FLUSH_THREAD_PRIORITY` and its value is now interpreted as an |
| absolute priority instead of a cooperative one. |
| |
| Device Drivers and Devicetree |
| ***************************** |
| |
| Controller Area Network (CAN) |
| ============================= |
| |
| Display |
| ======= |
| |
| Enhanced Serial Peripheral Interface (eSPI) |
| =========================================== |
| |
| GNSS |
| ==== |
| |
| Input |
| ===== |
| |
| Interrupt Controller |
| ==================== |
| |
| LED Strip |
| ========= |
| |
| Sensors |
| ======= |
| |
| Serial |
| ====== |
| |
| Stepper |
| ======= |
| |
| * Renamed the ``compatible`` from ``zephyr,gpio-steppers`` to :dtcompatible:`zephyr,gpio-stepper`. |
| |
| Regulator |
| ========= |
| |
| Bluetooth |
| ********* |
| |
| Bluetooth HCI |
| ============= |
| |
| Bluetooth Mesh |
| ============== |
| |
| Bluetooth Audio |
| =============== |
| |
| * The following Kconfig options are not longer automatically enabled by the LE Audio Kconfig |
| options and may need to be enabled manually (:github:`81328`): |
| |
| * :kconfig:option:`CONFIG_BT_GATT_CLIENT` |
| * :kconfig:option:`CONFIG_BT_GATT_AUTO_DISCOVER_CCC` |
| * :kconfig:option:`CONFIG_BT_GATT_AUTO_UPDATE_MTU` |
| * :kconfig:option:`CONFIG_BT_EXT_ADV` |
| * :kconfig:option:`CONFIG_BT_PER_ADV_SYNC` |
| * :kconfig:option:`CONFIG_BT_ISO_BROADCASTER` |
| * :kconfig:option:`CONFIG_BT_ISO_SYNC_RECEIVER` |
| * :kconfig:option:`CONFIG_BT_PAC_SNK` |
| * :kconfig:option:`CONFIG_BT_PAC_SRC` |
| |
| Bluetooth Classic |
| ================= |
| |
| Bluetooth Host |
| ============== |
| |
| Bluetooth Crypto |
| ================ |
| |
| Networking |
| ********** |
| |
| Other Subsystems |
| **************** |
| |
| Flash map |
| ========= |
| |
| hawkBit |
| ======= |
| |
| MCUmgr |
| ====== |
| |
| Modem |
| ===== |
| |
| Architectures |
| ************* |
| |
| * native/POSIX |
| |
| * :kconfig:option:`CONFIG_NATIVE_APPLICATION` has been deprecated. Out-of-tree boards using this |
| option should migrate to the native_simulator runner (:github:`81232`). |
| For an example of how this was done with a board in-tree check :github:`61481`. |
| * For the native_sim target :kconfig:option:`CONFIG_NATIVE_SIM_NATIVE_POSIX_COMPAT` has been |
| switched to ``n`` by default, and this option has been deprecated. Ensure your code does not |
| use the :kconfig:option:`CONFIG_BOARD_NATIVE_POSIX` option anymore (:github:`81232`). |
