95aaa97dc3
Adding new CONFIG_MBEDTLS_PSA_KEY_SLOT_COUNT to select the number of key slots in PSA Crypto core. The default value is 16. Be aware that key slots consume RAM memory even if unused, so the proper value should be a compromise between the number of slots required by the application and the available RAM in the system. This commit also: - updates tests/crypto/secp256r1/mbedtls.conf to showcase how to use this new symbol to reduce RAM footprint. - tests/bsim/bluetooth/mesh/overlay_psa.conf to support all the keys used in the test. Signed-off-by: Valerio Setti <vsetti@baylibre.com>
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.. _zephyr_4.1:
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Zephyr 4.1.0 (Working Draft)
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############################
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We are pleased to announce the release of Zephyr version 4.1.0.
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Major enhancements with this release include:
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An overview of the changes required or recommended when migrating your application from Zephyr
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v4.0.0 to Zephyr v4.1.0 can be found in the separate :ref:`migration guide<migration_4.1>`.
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The following sections provide detailed lists of changes by component.
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Security Vulnerability Related
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******************************
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The following CVEs are addressed by this release:
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More detailed information can be found in:
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https://docs.zephyrproject.org/latest/security/vulnerabilities.html
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API Changes
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***********
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Removed APIs in this release
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============================
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* The deprecated Bluetooth HCI driver API has been removed. It has been replaced by a
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:c:group:`new API<bt_hci_api>` that follows the normal Zephyr driver model.
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Deprecated in this release
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==========================
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Architectures
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*************
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* Common
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* Introduced :kconfig:option:`CONFIG_ARCH_HAS_CUSTOM_CURRENT_IMPL`, which can be selected when
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an architecture implemented and enabled its own :c:func:`arch_current_thread` and
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:c:func:`arch_current_thread_set` functions for faster retrieval of the current CPU's thread
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pointer. When enabled, ``_current`` variable will be routed to the
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:c:func:`arch_current_thread` (:github:`80716`).
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* ARC
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* ARM
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* ARM64
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* RISC-V
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* Implements :c:func:`arch_current_thread_set` & :c:func:`arch_current_thread`, which can be enabled
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by :kconfig:option:`CONFIG_RISCV_CURRENT_VIA_GP` (:github:`80716`).
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* Xtensa
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* native/POSIX
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* :kconfig:option:`CONFIG_NATIVE_APPLICATION` has been deprecated.
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* For the native_sim target :kconfig:option:`CONFIG_NATIVE_SIM_NATIVE_POSIX_COMPAT` has been
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switched to ``n`` by default, and this option has been deprecated.
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Kernel
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******
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Bluetooth
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*********
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* Audio
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* Host
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* HCI Drivers
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Boards & SoC Support
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********************
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* Added support for these SoC series:
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* Made these changes in other SoC series:
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* Added support for these boards:
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* Made these board changes:
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* Added support for the following shields:
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Build system and Infrastructure
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*******************************
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Drivers and Sensors
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*******************
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* ADC
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* Battery
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* CAN
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* Charger
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* Clock control
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* Counter
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* DAC
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* Disk
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* Display
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* Added flag ``frame_incomplete`` to ``display_write`` that indicates whether a write is the last
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write of the frame, allowing display drivers to implement double buffering / tearing enable
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signal handling (:github:`81250`)
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* Added ``frame_incomplete`` handling to SDL display driver (:dtcompatible:`zephyr,sdl-dc`)
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(:github:`81250`)
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* Added transparency support to SDL display driver (:dtcompatible:`zephyr,sdl-dc`) (:github:`81184`)
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* Ethernet
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* Flash
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* GNSS
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* GPIO
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* Hardware info
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* I2C
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* I2S
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* I3C
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* Input
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* LED
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* Added a new set of devicetree based LED APIs, see :c:struct:`led_dt_spec`.
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* lp5569: added use of auto-increment functionality.
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* lp5569: implemented ``write_channels`` api.
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* lp5569: demonstrate ``led_write_channels`` in the sample.
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* LED Strip
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* LoRa
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* Mailbox
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* MDIO
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* MFD
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* Modem
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* MIPI-DBI
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* MSPI
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* Pin control
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* PWM
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* Regulators
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* Reset
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* RTC
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* RTIO
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* SDHC
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* Sensors
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* Serial
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* SPI
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* USB
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* Video
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* Watchdog
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* Wi-Fi
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Networking
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**********
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* ARP:
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* CoAP:
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* Connection manager:
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* DHCPv4:
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* DHCPv6:
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* DNS/mDNS/LLMNR:
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* gPTP/PTP:
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* HTTP:
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* IPSP:
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* IPv4:
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* IPv6:
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* LwM2M:
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* Misc:
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* MQTT:
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* Network Interface:
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* OpenThread
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* PPP
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* Shell:
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* Sockets:
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* Syslog:
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* TCP:
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* Websocket:
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* Wi-Fi:
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* zperf:
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USB
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***
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Devicetree
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**********
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Kconfig
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*******
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Libraries / Subsystems
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**********************
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* Debug
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* Demand Paging
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* Formatted output
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* Management
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* Logging
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* Modem modules
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* Power management
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* Crypto
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* The Kconfig symbol :kconfig:option:`CONFIG_MBEDTLS_PSA_STATIC_KEY_SLOTS` was
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added to allow Mbed TLS to use statically allocated buffers to store key material
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in its PSA Crypto core instead of heap-allocated ones. This can help reduce
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(or remove, if no other component makes use of it) heap memory requirements
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from the final application.
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* The Kconfig symbol :kconfig:option:`CONFIG_MBEDTLS_PSA_KEY_SLOT_COUNT` was
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added to allow selecting the number of key slots available in the Mbed TLS
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implementation of the PSA Crypto core. It defaults to 16. Since each
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slot consumes RAM memory even if unused, this value can be tweaked in order
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to minimize RAM usage.
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* CMSIS-NN
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* FPGA
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* Random
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* SD
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* State Machine Framework
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* Storage
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* Task Watchdog
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* POSIX API
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* LoRa/LoRaWAN
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* ZBus
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HALs
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****
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* Nordic
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* STM32
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* ADI
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* Espressif
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MCUboot
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*******
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OSDP
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****
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Trusted Firmware-M
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******************
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LVGL
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****
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* Added ``frame_incomplete`` support to indicate whether a write is the last
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write of the frame (:github:`81250`)
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Tests and Samples
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*****************
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* Fixed incorrect alpha values in :zephyr_file:`samples/drivers/display`. (:github:`81184`)
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* Added :zephyr_file:`samples/modules/lvgl/screen_transparency`. (:github:`81184`)
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Issue Related Items
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*******************
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Known Issues
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============
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