Release Notes#

The release notes provide a comprehensive overview of the MCUXpresso SDK releases, including new features, enhancements, bug fixes, and breaking changes. Details on device support, quality levels, and validated development tools are available in the Devices Support section.

Overview#

MCUXpresso SDK 26.09.00 is the September 2026 quarterly release, delivering new device and platform enablement, significant security library upgrades, expanded wireless connectivity support, and broad quality improvements across drivers, middleware, and examples.

This release spans 72 updated sub-repositories, 3 newly added components, and 1 removed component relative to the 26.06.00 baseline. Key themes include:

New silicon support: MCXE327, MCXN556S (123-WLCSP), MCXN947T, MCXC352/353, MCXA556/557 (WLCSP), i.MX RT2660 (public), i.MX 93 CA55, i.MX 8M Mini CA53, i.MX 95 CA55, FRDM-IMXRT1152, FRDM-MCXE32B, KW43-LOC, MCXW70-LOC.
Security upgrades: Mbed TLS updated to v4.2.0 (LTS) and v3.6.7; ELS_PKC v5.0.0; SGI_PKC v4.3.0; TF-M updated; new EdgeLock ELE S100 firmware; new ele_hseb component.
Wireless: Wi-Fi firmware updated to IW612 18.99.8.p141, IW416 16.92.21.p166, RW610/IW610 p141; Bluetooth host v1.10.23; edgefast_open migration complete; new MSTP library added.
ML / AI: ExecuTorch upgraded to v1.4.1; Neutron NPU SDK updated to v3.2.2; MPP updated to v4.4.0.
RTOS: FreeRTOS-Plus-TCP updated to V4.4.1.
Boot: MCUboot updated to v2.4.0.
Toolchain: Xtensa toolchain updated to RJ2026_6 across all DSP-capable devices.

Release Highlights#

i.MX RT2660 Public Enablement — Full device support for the i.MX RT2660 SoC (clock, power, eDMA, LLC, TRDC, USB) moved from pre-silicon to public availability, including Neutron NPU firmware for IAR and GCC toolchains.
Mbed TLS 4.2.0 and 3.6.7 Upgrades — The SDK now ships both the LTS Mbed TLS 4.2.0 branch and the 3.6.7 maintenance update, incorporating upstream security fixes and NXP hardware-acceleration extensions (CASPER ECDH, HSEB opaque key operations, PKC transparent key export).
MCUboot v2.4.0 — The open-source secure bootloader is updated to upstream v2.4.0, adding OTFAD encrypted XIP support for i.MX RT1152/1160/1170 and improved PSA Crypto integration.
New MCXE327 Device Support — Full SDK enablement for the MCXE327 MCU including device headers, Kconfig, startup files, QSPI driver adaptation, and errata workarounds.
ExecuTorch v1.4.1 with Neutron 3.2.2 — The on-device ML inference framework is upgraded to ExecuTorch v1.4.1 with Neutron SDK 3.2.2, adding RT700 support and softmax operator acceleration on the Neutron NPU.
USB Stack — The version is updated to 2.13.0.
- Fixed memory leaks, improved host stack robustness and security, and enhanced MCX ENET adapter functionality with MII support.
- Fixed two vulnerability issues (CVEs are pending).
  - A missing bounds check on a host-controlled field in the RNDIS device class driver of the NXP MCUXpresso SDK USB middleware up to releases 26.06.00-lts and 26.09.00-pvw2 allowed a malicious USB host to read arbitrary memory from the connected device. All software versions starting from 26.06.01-lts and 26.09.00 have fixed this issue.
    
    Acknowledgment: NXP would like to thank dread (d7ead) for the responsible disclosure.
  - A missing bounds check on a device-controlled field in the USB host video, audio, and CDC class drivers of the NXP MCUXpresso SDK USB middleware up to releases 26.06.00-lts and 26.09.00-pvw2 allowed a malicious USB device to trigger a heap buffer overflow when connected to an affected host, potentially leading to memory corruption and loss of device availability. All software versions starting from 26.06.01-lts and 26.09.00 have fixed this issue.
    
    Acknowledgment: NXP would like to thank dread (d7ead) for the responsible disclosure.

Comprehensive bounds-checking and input-validation fixes across USB host class drivers (RNDIS, CDC-ECM, Audio, Video, PHDC, MSC, MTP, CCID) addressing potential out-of-bounds reads from malformed USB descriptors.

Wi-Fi Firmware and Driver Updates — Wi-Fi firmware refreshed to latest patch levels for IW612, IW416, RW610, and IW610; Wi-Fi driver updated to v1.3.r49.p10 with SD8978/SD9177 compressed TX power table support, VDLL firmware download, and multiple stability fixes.
Cortex-A Core Enablement for i.MX Devices — CA55 (AArch64) device files added for i.MX 93 (MIMX9352), i.MX 95 (MIMX9596), and i.MX 8M Mini (MIMX8MM6); CA53 support added for i.MX 8M Mini.
ELS_PKC v5.0.0 and SGI_PKC v4.3.0 — Cryptographic accelerator libraries updated with expanded platform support (MCXN, RT700, MCXL, MCXW Zephyr), new PQC add-on v4.3.0, and improved PSA driver integration.
Connectivity Framework v7.4.3 — Updated wireless MCU connectivity framework with CERT-C/MISRA quality fixes, improved NBU fault diagnostics, KW43-LOC antenna diversity support, and Zephyr configuration management improvements.
IEEE 802.15.4 MAC/PHY Software — Fixed MAC dispatcher heap corruption, enabled on-demand RPMSG MAC init, removed MCXW71 MAC/PHY binaries, and cleaned repository metadata.

Manifest & Repository Changes#

Summary#

Category	Count
Changed	91
Added	3 (customer-facing)
Removed	1 (customer-facing)

Added Repositories#

Repository	Functional Area	Description
`ele_hseb`	Security	New EdgeLock HSEB (Hardware Security Engine B) PSA driver component, enabling opaque asymmetric key operations on supported devices.
`mstp-lib`	Connectivity & Wireless	New MSTP (Master-Slave Token Passing) library for BACnet/MS-TP connectivity support.
`neo_isp`	ML / DSP / Multimedia	New Neo ISP (Image Signal Processor) middleware component for i.MX 95 camera pipeline support.

Removed Repositories#

Repository	Functional Area	Impact
`edgefast_bt_ble`	Connectivity & Wireless	Removed legacy EtherMind-based Bluetooth stack. Applications should migrate to `edgefast_open`, which is the unified Bluetooth stack going forward. See Breaking Changes section.

Impact on `west update`#

Running west update against release/26.09.00 will fetch updated revisions for all 91 changed repositories. The three newly added repositories (ele_hseb, mstp-lib, neo_isp) will be cloned for the first time. The removed edgefast_bt_ble repository will no longer be checked out; any project referencing it directly must migrate to edgefast_open.

What’s New#

New Features#

Fundamental#

Phase Detector (PHD) driver — New peripheral driver for the Phase Detector IP, providing initialization, deinitialization, and configurable operation modes.
eDMA software workaround for errata ERR052315 — The eDMA driver now applies an automatic software workaround for affected eDMA instances where certain TCD configuration errors could cause subsequent DMA requests to stall.
SDMA SPBA count derived from array size — SDMA_IsPeripheralInSPBA() now derives the SPBA instance count from SPBA_BASE_PTRS array size rather than a fixed feature macro, improving portability across SoC variants.
ELE S100 firmware and crypto support — EdgeLock ELE S100 firmware added to the edgelock repository; mcu-sdk-components extended with ELE S100 support in the ELE Crypto component for i.MX RT2660.
EdgeLock V2X FCE AES-GCM service — New v2x_fce component providing EdgeLock V2X Fast Crypto Engine AES-GCM firmware service for i.MX 943 CM33.
EdgeLock V2X base service driver — New v2x_base component providing the EdgeLock V2X base (debug) service driver and ele_base_api helper layer for i.MX 943 CM33.
CMSIS Cortex-M55 core header support — CMSIS CMakeLists.txt and Kconfig updated to include Cortex-M55 (ARMv8.1-M) core headers, enabling projects targeting CM55 cores.
Kconfig EDMA selector project segment — New module.driver.edma_selector Kconfig project segment allows enabling the eDMA selector driver from prj.conf.
MVE (Helium) compile flag documentation — New documentation section covering how to disable MVE on Cortex-M55/M85 across IAR, Keil MDK, and ARMGCC toolchains.
IAR restore_breakpoint option — New restore_breakpoint key documented under debugger_setting in IDE.yml for IAR GUI project generation.
Pagefind-based documentation search — SDK documentation now includes a Pagefind-powered search engine with improved relevance ranking, replacing the previous Sphinx search that produced excessive per-board duplicate results.
SBOM collection documentation — New sbom_collect documentation integrated into the SDK documentation set.

Security#

Mbed TLS 4.2.0 (LTS) — The mbedtls repository is updated to Mbed TLS v4.2.0, incorporating upstream security fixes, TLS 1.3 record boundary alignment improvements, and DTLS-SRTP session reset fixes.
Mbed TLS 3.6.7 — The mbedtls3x NXP fork is rebased onto upstream Mbed TLS v3.6.7, adding NXP hardware-acceleration extensions: CASPER ECDH PSA wrappers, HSEB opaque asymmetric sign/verify, and PKC transparent public-key export.
ELS_PKC v5.0.0 — Updated to v5.0.0 with MCXN and RT700 (MIMXRT7xx) ELS/PKC integration, MCXN526T device support, and improved device-header portability.
SGI_PKC v4.3.0 + PQC add-on v4.3.0 — SGI_PKC updated to v4.3.0 with Zephyr support for MCXL and MCXW platforms; new PQC (Post-Quantum Cryptography) add-on v4.3.0 included.
TF-PSA-Crypto updated to v1.2.0 — tf-psa-crypto updated from v1.1.0 to v1.2.0 with ML-DSA builtin implementation and updated driver wrapper templates.
PSA crypto driver hardening — Comprehensive CERT-C integer-overflow and pointer safety fixes across CAAM, DCP, ELE HSEB, ELS_PKC, SGI, and ele_s4xx PSA drivers; oversized key rejection on SGI import; tampered multipart AEAD CCM decrypt rejection.
HSEB opaque key operations — New opaque key generation, import, export, and asymmetric sign/verify operations via the HSEB PSA driver.
EL2GO agent: PSA key ID export API — New iot_agent_utils_psa_import_blobs_from_flash_exp_key_id() API exports PSA key IDs of imported EL2GO blobs, enabling downstream key usage without re-importing.
EL2GO CSR application expanded — el2go_csr application enabled on additional platforms: MCXE31B (opaque keys), KW43 (without TF-M), A20 boards, and MCXL20.
Secure subsystem Zephyr support — KW45/W71 SW session tracking and Zephyr Kconfig/ CMakeLists added to the secure subsystem component.
TF-M updated — Trusted Firmware-M updated to align with TF-M 2.3, including adjusted binary location for signed secure images.
ELE FW header representation — Centralized ELE firmware header with CMake and Kconfig integration, enabling dynamic and non-exclusive FW inclusion in C builds.

Connectivity & Wireless#

Wi-Fi secure enterprise example with opaque keys — New wifi_secure_enterprise example demonstrating WPA2/WPA3 Enterprise authentication using opaque (hardware- protected) private keys via the PSA Crypto API.
SDIO over SPI host driver — New SPI host driver added to the SDMMC middleware, enabling SDIO connectivity over SPI interface.
LE Power Control via vendor HCI command — Bluetooth host updated with a dedicated vendor HCI command to enable LE Power Control on KW45/KW47 platforms.
BLE Direct Test Mode (DTM) shell commands — New NXP-specific DTM shell commands added to edgefast_open for RF testing on FRDM-RW612 and RD-RW612-BGA.
RFCOMM Remote Line Status (RLS) support — edgefast_open now supports sending RFCOMM Remote Line Status commands to report line errors to remote devices.
Coex FRDM-IMXRT1152 support — Wi-Fi + Bluetooth coexistence example (coex_wifi_edgefast) enabled on the FRDM-IMXRT1152 board.
Coex RT1060EVKC support — Coexistence example support added for the evkcmimxrt1060 board with edgefast_open middleware.
Narrow-band firmware UART download — Coex applications gain support for downloading narrow-band (BT/OT) firmware over UART for UART-based BT firmware bootstrap platforms.
KW43-LOC antenna diversity — Connectivity framework updated to enable antenna diversity on the KW43-LOC board via PLATFORM_InitLcl().
MSTP library — New mstp-lib component added for BACnet MS-TP connectivity.
lwIP updated to 2.2.2 — lwIP NXP fork updated to version 2.2.2_rev2, syncing with upstream master (3d896ba0) and including IPv6 ND6 option parsing improvements, ENET_QOS flexible configuration hook, and multiple security/stability fixes.
USB Zephyr host controller driver support — Zephyr USB host controller drivers aligned with SDK; EHCI host support extended to i.MX 952x devices.
SDIO SPI mode support — SDIO middleware updated to support SPI mode operation.

ML / DSP / Multimedia#

ExecuTorch v1.4.1 — On-device ML inference framework upgraded to v1.4.1 with Neutron SDK 3.2.2, RT700 board support, softmax operator acceleration on Neutron NPU, and simplified OSS native runtime build method.
Neutron NPU SDK 3.2.2 — Neutron software SDK updated to v3.2.2 across eIQ middleware and ExecuTorch; IAR toolchain firmware added for RT2660.
MPP v4.4.0 — Media Processing Pipeline updated to v4.4.0 with RTSP/RTP streaming support, FRDM-IMXRT1152 board support, camera gesture recognition example, and all NPU models rebuilt with Neutron compiler 3.2.2.
Ethos-U85 512 NPU support (RT700E) — New example added for Ethos-U85 512 NPU with Cortex-M55 core on i.MX RT700E; IAR toolchain hang fix for Ethos-U driver in release mode.
Neo ISP component — New neo_isp middleware component for i.MX 95 Image Signal Processor camera pipeline support.
Xtensa toolchain updated to RJ2026_6 — DSP codec libraries, XAF (v3.8), HiFi NN Library (v5.0.0 API 2.0), and NatureDSP rebuilt with the RJ2026_6 Xtensa toolchain across RT500, RT600, RT700, and i.MX 8ULP DSP variants.
FRDM-IMXRT700 DSP examples — NatureDSP, VIT, nnlib, XAF (xaf_playback, xaf_record, xaf_usb_demo), and Cadence codec examples enabled on FRDM-IMXRT700.
MCXN947T Neutron NPU support — MCXN947T device added to Neutron NPU DEVICE_IDS in the eIQ middleware.

RTOS#

Boot — Open-source secure bootloader updated to upstream v2.4.0 with OTFAD encrypted XIP support for i.MX RT1152/1160/1170, improved PSA Crypto integration, and Zephyr compatibility fixes.
Multicore —
- RPMsg-Lite v5.5.0 updated with MCXE32B dual Cortex-M7 support, FRDM-IMXRT700 and FRDM-MCXN947T board support, new rpmsg_lite_are_all_buffers_consumed() API, CERT INT31-C/ARR38-C fixes, and Zephyr hal_nxp integration.
- MCMGR v5.3.0, multicore manager updated with MCXE32B dual Cortex-M7 support, FRDM-IMXRT700 and FRDM-MCXN947T board support, KW43 ICS init-handshake fix, and MISRA compliance improvements.
- eRPC Zephyr improvements, CONFIG_ERPC_ENDPOINT_NAME Kconfig option added; RPMsg-Lite set as default IPC service backend with multi-backend support.

Boot#

RT1150 flashloader support — NXP MCU bootloader updated with RT1150 flashloader support and SPI communication fix for RT1186.

Motor Control#

FreeMASTER updated — FreeMASTER tool updated for 26.09.00 release scope.
Motor control examples — Overcurrent fault, encoder speed, and motor configuration fixes for HVP-MCXA346 PMSM encoder example; FRDM-MCXE32B appconfig path updated.

Safety#

New Platform / Device Support#

Device / Board	Family	Notes
MCXE327	MCX E-series	Full SDK enablement: device headers, Kconfig, startup, QSPI adaptation, errata ERR050705 and ERR052460 workarounds
MCXN556S (123-WLCSP)	MCX N-series	New 123-ball WLCSP package variants: MCXN556TVAB, MCXN556TCAB, MCXN557TVAB, MCXN557TCAB
MCXN947T	MCX N-series	New FRDM-MCXN947T board documentation, mcmgr/rpmsg-lite/eIQ support
MCXC352 / MCXC353	MCX C-series	SVD files added; Keil flash loader updated with data flash and chip-erase support
MCXA556 / MCXA557 (WLCSP)	MCX A-series	WLCSP package SVD support added
i.MX RT2660	i.MX RT	Full public enablement: clock, power, eDMA, LLC, TRDC, USB, Neutron NPU firmware
i.MX RT1150 / RT1152	i.MX RT	RT1150 flashloader; FRDM-IMXRT1152 coex and MPP board support
i.MX 93 CA55 (MIMX9352)	i.MX	AArch64 CA55 device files, startup, linker scripts, CMake/Kconfig
i.MX 95 CA55 (MIMX9596)	i.MX	CA55 core definition, source code, and linker scripts
i.MX 8M Mini CA53/CA55 (MIMX8MM6)	i.MX	Cortex-A53 core support files; multi-core device layer refactored
i.MX 943 V2X (MIMX94398)	i.MX	ELE V2X firmware bring-up enabled; V2X FCE and base service drivers
KW43-LOC	Wireless	Flash support, documentation, antenna diversity, KW43-LOC board examples
MCXW70-LOC	Wireless	Flash support, documentation, release notes and getting-started pages
FRDM-MCXE32B	MCX E-series	MDK flash programming fix for multicore; mcmgr/rpmsg-lite support

Enhancements#

Fundamental#

Driver quality improvements (Coverity / CERT-C / MISRA) — Systematic resolution of static-analysis findings across core peripheral drivers including NETC, USDHC, I3C, SCTimer, QSPI, RCM, LIN, LCDIC, Hiperface DSL, and eDMA. Fixes address CERT ARR30-C bounds violations, CERT INT30-C integer wraps, UNUSED_VALUE dead stores, and INCONSISTENT_UNION_ACCESS type-punning issues.
Include-guard macro standardization — Leading underscores stripped from include- guard macros across all driver headers to comply with C reserved-identifier rules.
LPADC feature macro correction — Feature macro renamed from FSL_FEATURE_LPADC_ADC_TCTRL_COUNT to FSL_FEATURE_LPADC_TCTRL_COUNT across RT, LPC, Kinetis, and Wireless device families.
eDMA unified driver migration — driver.edma4 references replaced with driver.edma_unified across i.MX 937, i.MX RT2660, and related device Kconfigs.
Kconfig edgefast_open centralization — edgefast_open Kconfig is now sourced once from the top-level Kconfig.mcuxpresso instead of per-example, eliminating duplicate sourcing warnings.
Component quality fixes — Coverity findings resolved in coredump, gen_hal, flash_nand_semc, flash_nor_spifi, UART DMA, I3C, RPMsg, and string formatter components.
Wi-Fi TX power table improvements — Per-region compressed TX power tables added for AzureWave, Murata 1XK, Murata 2EL, Quectel, SD8978, and SD9177 modules; 40 MHz support on 2.4 GHz band edge channels for Murata 2EL.
CMSIS LPSPI driver improvements — Instance configuration extracted outside functions; additional peripheral instances configured; build issue fixed.
SVD file updates — SVD files refreshed for MCXN, MCXC, MCXA, MCXE32, RT1150, KW43/MCXW70 (CRR 1.41/1.42).
Documentation search and navigation — Pagefind search integrated; shared topic deduplication across board getting-started guides; documentation URL path corrections.

Device Support#

i.MX RT2660 clock driver — Clock root shutdown during reconfiguration, clock root and gate index validation, new CLOCK_MeasureRootClockFreq() and CLOCK_MeasureClockSourceFreq() APIs, USB FS clock configuration improvements.
i.MX RT2660 power driver — POWER_Init renamed to POWER_SetPolicy; topology config renamed to handshake routing; POWER_ApplyWakeupSources made public.
i.MX RT2660 LLC configuration — Cache topology and physical-memory alias metadata exposed for the generic LLC driver.
i.MX RT DSP Xtensa core update — Default XTENSA_CORE updated to RJ26_6_newlib for RT500 FusionF1, RT600 HiFi4, and RT700 HiFi1/HiFi4 variants.
RT700 DSP_Init reset fix — DSP_Init() now asserts the HiFi1 reset before releasing it, preventing stale state from the always-on SENSE power domain.
i.MX RT FRO tuner rework — CLOCK_TrimUsbFroClock replaced with CLOCK_EnableFroTuner using per-reference parameter tables for improved accuracy.
ARM PLL postDiv=3 fix — Corrected ARM PLL post-divider value for POST_DIV_SEL=0b11 (should be ÷1, not ÷8) on affected i.MX RT devices.
MCXL20 power driver — Power_LowPowerBoot() updated with reset-reason check; Power_ApplyDcdcMainDriveErrata053099() added for PMU ERR053099 DCDC workaround; VDD CORE main trim low-power read functions added.
MCXW70 clock driver — Updated per rev.1 Reference Manual with implementation corrections and missing features; KW43B43ZC7 clock driver similarly updated.
KW43 GCC AlwaysOnData section placement — Linker script corrected to properly place .AlwaysOnData.init and related sections in GCC builds.
RW61x GDET disableCount fix — PM3 entry failure no longer corrupts the GDET sensor context disableCount, preventing subsequent GDET disable/enable imbalance.
i.MX 8M Mini SDMA clock array — SDMA_CLOCKS made 1-based to match instance indexing; NonCacheable region moved out of read-only MPU region.
i.MX 952 XSPI DDR mode — DDR mode support added with improved DLL reference counter and autoupdate resolution settings.
MCXE32x errata ERR052460 — Startup file workaround added for MCXE31/MCXE32.
MCXN947T TF-M ROM API — Bug fix for FSL driver fetch when TF-M ROM API Kconfig is disabled; Flash API proxy layer added for TF-M IOCTL service.

Security#

PSA CASPER ECDH acceleration — CASPER hardware accelerator now supports ECDH key agreement; PSA entry points added in psa_crypto_driver and mbedtls3x.
SGI AES-192 key support — AES-192 key size handling added to the SGI PSA driver, guarded by MCUXCL_FEATURE_AES192, for MCXW/KW platforms.
ELS_PKC device-header portability — Hardcoded MCXN947_cm33_core0.h include replaced with fsl_device_registers.h; MCXN547 include path corrected.
Secure storage MDK compatibility — psa_status_t typedef redefinition error with MDK compiler resolved; MIN macro redefinition guard added.
ELE session state tracking — ELE_TRACK_SESSION_STATE made toggleable via Kconfig for KW45 platform.

Connectivity & Wireless#

Bluetooth host v1.10.23 — Updated with EATT/L2CAP storage size improvements, LE Power Control vendor HCI command, CS algorithm buffer alignment fix, and comprehensive CERT-C integer-overflow fixes in ranging service and connection manager.
BLE controller updates — Link layer libraries updated with CS sniffer antenna switching fix, HW PCT rotation for IPT, GFSK clock enablement ordering fix, and HADM antenna diversity improvements.
XCVR NBU library updates — Multiple NBU library refreshes with MISRA/CERT-C static-analysis fixes for overflow and type-casting issues.
IEEE 802.15.4 updates — SW Rx address filtering for Multipurpose frames added; MCXW72 MAC single-instance configuration; device filtering fix for blacklist-only configuration.
Connectivity framework v7.4.3 — CERT-C/MISRA fixes across OTA, FSCI, SecLib, SFC, ICS, NVM, and LowPower modules; NBU fault/assert state preservation; TSTMR 56-bit timestamp fix; RW61x RTOS heap exhaustion fix on repeated BT init.
lwIP TLS/HTTPS fixes — altcp_tls RX window stall on large TLS records fixed; client TLS config auto-free on dealloc corrected; RNDIS/CDC-ECM buffer bounds hardened.
USB host stack security — Descriptor length and bounds validation added across audio, CDC, video, PHDC, MSC, MTP, and CCID class drivers; RNDIS message builder buffer bounds fixed; CCID bulk-out integer overflow fixed.
wpa_supplicant-rtos — Network selection based on reliability added; uAP EAP SIM/AKA memory leak fixed; early STA removal due to missing DEAUTH_TX_STATUS fixed; EAP-WSC source files guarded with preprocessor conditionals.
Wi-Fi driver stability — Multiple fixes: RSN IE out-of-bounds HardFault, CMD 0x24 response timeout hang during WPA3 SAE, uAP channel 165 start failure, roaming state leak, power-save mode RRM beacon handling, wowlan STA+UAP coexistence.
IW612 default module update — Default Wi-Fi module updated to IW612 for RT boards; IW610 2LL set as default for FRDM-MCXN947, FRDM-MCXN947T, MCXNxxEVK boards.
edgefast_open L2CAP race condition — BR/EDR config response race condition fixed; channel state transition moved to config-response-sent callback.
On-demand MAC initialization for RPMSG-based multicore platforms — The MAC RPMSG interface no longer creates and binds a MAC instance during generic initialization. Instead, initialization now occurs only when a bind request is actually received. This reduces unnecessary resource setup during boot on multicore configurations where the MAC service is not always used.

ML / DSP / Multimedia#

OpenVG stability — Multiple Coverity fixes: null pointer dereference guards, signed-to-unsigned cast guards, overflow guards; mutex pointer cleared after delete; vertical flip revert; EGL display free on OS_DestroyDisplay.
OpenH264 type consistency — Fixed-width uint32_t used in public headers instead of unsigned int for cross-platform compatibility.
VGLite RT1150/RT1152 buffer address — Starting address offset corrected for tiled_freertos example on RT1150 and RT1152.

Filesystem#

FatFS integer overflow fixes — Sector+count bounds checks added in USB disk read/write; GET_SECTOR_SIZE ioctl signed-shift fixed; RAM disk pointer arithmetic cast to size_t.
LittleFS CERT INT30-C fix — Unsigned wrap guards added in lfs_mflash.c.
SDMMC SD voltage switch — Voltage switch workflow updated: DAT line low is retried multiple times after CMD11 for improved reliability.
SDMMC SDIO over SPI — Added SDIO over SPI support.
SDMMC FreeRTOS — Converted to use Kconfig generated FreeRTOSConfig_Gen.h.

Multicore#

RPMsg-Lite virtqueue NUL-termination — virtqueue_create[_static] now NUL-terminates vq_name after env_strncpy to prevent potential overread.
MCMGR initialization guard — All public MCMGR API functions now return kStatus_MCMGR_NotReady before MCMGR_Init() completes, preventing race conditions.

Bug Fixes#

Fundamental#

NETC EP_Down crash on errata path — Fixed crash in EP_Down() when FSL_FEATURE_NETC_HAS_ERRATA_050543 is active for pseudo Endpoint ports.
LPADC feature macro name — Corrected FSL_FEATURE_LPADC_ADC_TCTRL_COUNT to FSL_FEATURE_LPADC_TCTRL_COUNT (affected LPADC trigger control count queries).
SCTimer Coverity ARR30-C — Match-register indices decoded from event CTRL registers are now bounds-checked before use as MATCH[] subscripts.
QSPI MCXE327 RXBRD handling — QSPI driver updated to read Rx data from ARDB on MCXE327 which lacks the RXBRD bitfield in the RBCT register.
DSC EVTG FORCE_BYPASS macro — Mismatched parentheses in EVTG_Init fixed; flags cast to uint16_t to resolve CodeWarrior compiler errors.
RT2K PMU PMU_ConfigLfro1M removal — Removed deleted API and associated struct that referenced a non-existent CCUPMHI FREERUN bitfield.
I3C driver Coverity unused value — Dead assignment of instance variable in I3C_MasterSetTxDMA DDR branch removed.
i.MX 8M Mini QSPI read — Fixed QSPI read issue on i.MX 8MQ: Rx buffer set to RBDR instead of default ARDB for IP read operations.
RT1180 NVIC_SystemReset include-order hazard — Include-order dependency in system_MIMXRT*_cmXX.h headers that could silently override NVIC_SystemReset() resolved.
MCXE32x MDK flash programming — Keil uVision CMSIS-DAP multicore flash programming fixed; MDK CPU identifier corrected.
MCXW70 EMVSIM TX_CNT mask — EMVSIM_TX_STATUS_TX_CNT_MASK corrected from 4-bit to 5-bit width per design confirmation.
MCXN947/MCXN236 clock Coverity — Dead mMult initializer removed from findPllMMult() and related functions across MCX, LPC, and RT device families.
RT2660 TRDC MEDIA master mapping — MEDIA-domain master table corrected to match the RT2660 reference-manual master-assignment table (was missing entries).
RT2660 InputMux/clock connections — Wrong main_freq and comm_freq connections corrected; USB taps and FREQEAS TAR 21 added for comm_freq.
RT2660 linker file typo — Typo in GCC linker file corrected; __heap_noncacheable__ symbol now works correctly.
RT2660 USBPHY DCD — Disabled FSL_FEATURE_USBPHY_HAS_DCD_ANALOG macro re-enabled to fix DCD analog module recognition on mimxrt2660evk.
KW43 IAR startup vector table — m_image_length restored in IAR vector table at offset 0x20 after incorrect removal.
KW43 AHB timeout — CPU1 AHB timeout counter increased from 2 to 3 cycles to fix HardFault observed on NBU when accessing TSTMR.
KW43 CTCM1 ECC initialization — Removed incorrect ECC RAM initialization of CTCM1 (which does not support ECC) in KW47/MCXW72 startup.
TrustZone NSC veneer hardening — NSC veneer functions hardened against TrustZone-M confused-deputy attacks (Arm PSIRT ARMSEC-559, NXP PSIRT).
MCXC data flash Keil flashloader — Data flash range (0x1c000–0x1ffff, 16 KB) added to Keil flashloader for MCXC devices.
MCXN556S ROM API context — Undersized reserved field in api_core_context_t fixed to match the 512-byte flexspi_nor_config_t-sized slot expected by ROM API_Init.

Security#

SGI CCM tampered multipart AEAD — Tampered multipart AEAD CCM decrypt now correctly rejected; CCM context initialized in sgi_aead_set_nonce() instead of deferred to sgi_aead_update_ad().
SGI oversized key rejection — Raw HMAC keys exceeding PSA_MAX_KEY_BITS now rejected on SGI import (previously accepted up to 65536 bits).
Secure storage MDK psa_status_t redefinition — Typedef conflict between mbedtls3x PSA Crypto and secure_storage headers resolved.
ELS_PKC MCXN547 include path — Missing MCXN947 drivers include path for MCXN547 added to McuxElsPkc CMake target.

Connectivity & Wireless#

Wi-Fi RSN IE OOB HardFault — Out-of-bounds memory access in process_rsn_ie() triggered by malformed RSN IE after wlan-reset fixed.
Wi-Fi CMD 0x24 hang — Host hang on CMD 0x24 DEAUTHENTICATE response timeout during WPA3 SAE handshake when wlan_reset() is called shortly after connect fixed.
Wi-Fi uAP channel 165 — uAP start failure on channel 165 with WPA supplicant fixed by correcting secondary channel offset in embedded supplicant path.
Wi-Fi power save RRM — Wi-Fi ceasing to function during power save mode when receiving 802.11k RRM Beacon Request targeting 5 GHz channel fixed.
Wi-Fi wowlan STA+UAP — WoWLAN failed to wake host when STA and UAP coexist fixed.
Wi-Fi enterprise cert memory leak — Memory leak of enterprise certificate on wlan-reset with opaque keys fixed.
Wi-Fi roaming state leak — Roaming state not reset when neighbor list report arrives in IDLE state fixed.
wpa_supplicant early STA removal — STA removed too early due to missing DEAUTH_TX_STATUS flag fixed.
Coex PM3 hang — UART entering PM3 causing coex hang fixed; LPUART DMA cache coherency issue on evkbmimxrt1170 resolved.
edgefast_open audio frame length — Incorrect audio frame length for 88W8987 modules on evkmimxrt595 corrected.
LIN slave no output — LIN stack slave example produced no serial output on FRDM-KW43 and FRDM-MCXW70 due to FRO HF div not enabled before clock source selection; fixed.
Connectivity framework HCI packet length — HCI RX/TX length checks incorrectly clamped to 255 bytes (UINT8_MAX) by MCSE-1743, rejecting valid HCI/ACL packets; corrected.
RW61x RTOS heap exhaustion — Heap space exhaustion when performing repeated bt init → bt disable cycles on RW61x fixed.
Fixed a heap-corruption defect in the MAC message dispatched — Fixed a MAC/PHY dispatcher issue that could route a message to multiple MAC instances, causing heap corruption and instability. Optimized RPMSG multicore support by enabling on-demand MAC initialization and removing obsolete MCXW71 prebuilt MAC/PHY binaries and libraries.

Filesystem#

FatFS USB disk sector wrap — Sector+index wrap in USB disk read/write guarded against integer overflow.
SDMMC CMD53 multiblock read — Stop command no longer sent for CMD53 multiblock read (fixed block count); SPI zippack build error fixed.

Boot#

MCUboot PSA Crypto init — PSA Crypto initialization issue in MCUboot fixed.
MCUboot boot_copy_region_pre_hook — Prototype reworked to use bootloader state only; implementation adjusted in bootutil_hooks.c.
RT1186 SPI flashloader — Communication failure with RT1186 flashloader via SPI fixed.
RT117x fuse write on macOS — Fuses not correctly written on macOS fixed.

Multicore#

MCMGR KW43 ICS init-handshake hang — MCMGR_CHECK_INIT() returning kStatus_MCMGR_NotReady during MCMGR_Init() caused KW43 ICS init-handshake to hang; fixed with correct initialization ordering.
MCMGR CERT EXP33-C — Uninitialized target_core variable in all mcmgr platform files fixed.
RPMsg-Lite IMU_Deinit guard — IMU_Deinit in platform_deinit now guarded with RL_USE_MCMGR_IPC_ISR_HANDLER to prevent double-deinit when MCMGR owns the IMU link.

ML / DSP / Multimedia#

Ethos-U IAR release mode hang — Ethos-U driver hang in IAR release mode on i.MX RT700E (imxrtl375) fixed.
XAF FRDM-IMXRT700 codec I2C routing — Codec I2C routing fix propagated to xaf_playback, xaf_record, and xaf_usb_demo CM33 core0 ports.

Breaking Changes#

#	Description	Impact	Required Action
1	`edgefast_bt_ble` (EtherMind Bluetooth stack) removed	Applications using the legacy `edgefast_bt_ble` middleware component will fail to build after updating to 26.09.00.	Migrate to `edgefast_open`. The `edgefast_open` repository provides a unified Bluetooth stack with equivalent functionality. Update CMakeLists.txt, Kconfig, and include paths accordingly. Refer to the EdgeFast Open migration guide in the SDK documentation.
2	`POWER_Init` renamed to `POWER_SetPolicy` on i.MX RT2660	Code calling `POWER_Init()` or `POWER_GetDefaultInitConfig()` on RT2660 will not compile.	Replace `POWER_Init()` with `POWER_SetPolicy()` and `POWER_GetDefaultInitConfig()` with `POWER_GetDefaultPolicyConfig()`.
3	`PMU_ConfigLfro1M` API removed on RT2K	Code calling `PMU_ConfigLfro1M()` or referencing `pmu_lfro1m_config_t` will not compile.	Remove calls to `PMU_ConfigLfro1M()`. The LFRO 1M configuration is no longer supported via this API.
4	`edma4` Kconfig replaced by `edma_unified` on i.MX 937 and RT2660	Projects selecting `MCUX_COMPONENT_driver.edma4` on i.MX 937 or RT2660 will not resolve the eDMA driver.	Replace `MCUX_COMPONENT_driver.edma4` with `MCUX_COMPONENT_driver.edma_unified` in project Kconfig or CMakeLists.txt.
5	TF-PSA-Crypto updated to v1.2.0 (removes `ecp_curves_new.c`)	Projects with explicit CMake references to `drivers/builtin/src/ecp_curves_new.c` will fail to build.	Remove the explicit reference; the file was removed upstream in v1.2.0. The `psa_crypto_driver` CMake has been updated accordingly.
6	MCXW70AA part number removed	Any project or configuration referencing the `MCXW70AA` part number will not find a matching device definition.	Use the remaining MCXW70 part numbers. `MCXW70AA` is no longer a productized part number.
7	MCXW71 pre-built MAC/PHY binaries and libraries removed	Builds targeting MCXW71 will no longer find the required binaries/libraries in this release.	Continue using a prior release for MCXW71 designs, or migrate to a currently supported platform.

Known Issues#

IAR Embedded Workbench 9.70.4 on FRDM-IMXRT700 — When using IAR Embedded Workbench for Arm 9.70.4 with the FRDM-IMXRT700 board, users must install a patch from IAR. Refer to the FRDM-IMXRT700 release notes known issues section in the SDK documentation for the download link.
cube_freertos IAR build disabled on FRDM-IMXRT700 — The IAR debug/release configurations for cube_freertos on frdmimxrt700@cm33_core0 are disabled in this release as the example did not reach quality targets. GCC and MDK builds are unaffected.
FRDM-MCXA287 / FRDM-MCXA577 hello_world_qspi_xip ISP programming — Programming via blhost ISP may fail or leave the device in an unresponsive state if CMPA/ISP configuration is not cleared first. A debug-mailbox mass-erase step is required before ISP programming. Refer to the example documentation for the updated programming sequence.
FRDM-MCXN947T mcxn_encrypted_xip — The encrypted XIP build project for FRDM-MCXN947T depends on the SEC tool and is disabled in this release. It will be re-enabled in a future release.
edgefast_open K32W061 transceiver — K32W061 transceiver support has been removed from evkmimxrt595, evkmimxrt685, and evkbimxrt1050 EdgeFast Open examples. Applications requiring K32W061 on these boards should use the previous release or contact NXP support.
MCUXpresso IDE toolchain — MCUXpresso IDE toolchain support has been removed from wireless board examples. Use IAR, Keil MDK, or ARMGCC for wireless examples.

Toolchain & Environment Support#

The following toolchain versions are documented for this release. Version information is transcribed from the release/26.09.00 branch of mcu-sdk-doc; label as “Documented for this release”.

Toolchain	Version	Notes
MCUXpresso for VS Code	v26.09	Default toolchain for all device families. Refer to SDK Getting Started guide for the recommended version.
Arm GNU Toolchain (armgcc)	14.2.x
IAR Embedded Workbench for Arm	9.70.4	Patch required for FRDM-IMXRT700. See Known Issues.
Keil MDK (µVision)	5.43a	Supported for MCX, Kinetis, LPC, and i.MX RT families.
Xtensa C/C++ Compiler (XCC)	RJ2026_6	Required for DSP examples on RT500, RT600, RT700, i.MX 8ULP. Updated in this release.
MCUXpresso IDE	25.06.xx	Removed from wireless board examples in this release.

Note: Firm toolchain version numbers for armgcc and Keil MDK could not be verified from the available commit log. Refer to the SDK documentation (mcuxsdk/docs/release/commonrn/topics/development_tools_*.md) on the release/26.09.00 branch for the authoritative toolchain matrix.

Final Release Summary#

MCUXpresso SDK 26.09.00 (September 2026, implied) represents a significant quarterly advancement across the full breadth of the NXP MCUXpresso SDK ecosystem. This release delivers production-ready support for the i.MX RT2660 SoC, full enablement of the MCXE327 MCU, and expanded Cortex-A core support for i.MX 93, i.MX 95, and i.MX 8M Mini devices. The security posture of the SDK is substantially strengthened through the upgrade to Mbed TLS 4.2.0 (LTS) and 3.6.7, ELS_PKC v5.0.0, SGI_PKC v4.3.0 with PQC add-on, and comprehensive hardening of USB host class drivers and PSA crypto drivers against malformed-input attacks. The wireless ecosystem benefits from refreshed Wi-Fi firmware across all supported modules, Bluetooth host v1.10.23, the completed migration to the unified edgefast_open Bluetooth stack, and the addition of the MSTP library for BACnet connectivity. On the ML/AI front, ExecuTorch v1.4.1 with Neutron SDK 3.2.2 and MPP v4.4.0 bring expanded model support and new board enablement. MCUboot v2.4.0 adds OTFAD encrypted XIP for i.MX RT1152/1160/1170. Across all functional areas, this release incorporates extensive CERT-C, MISRA, and Coverity quality improvements, making 26.09.00 a high-quality foundation for production embedded software development on NXP MCU and MPU platforms.

Development Systems and Metrics#

The MCUXpresso SDK provides the following summary of Coverity Static Analysis to help customers assess the quality and security posture of our software. The table includes results for

Cyclomatic complexity (CCM)
Common Weakness Enumerations (CWE)
High Impact Findings (Definition)
Memory Leaks for Embedded C/C++ Systems (Definition)

This enables customers to make informed decisions and meet their own compliance requirements. The tabulated results cover findings that are classified as issues.

Component name	Memory Leaks	CWE	CCM > 20
Arch_ARM	0	0	0
Arch_xtensa	0	0	0
version	0	0	0
DSC_build_targets	0	0	0
devices_arch/arm	0	0	0
devices_arch/dsp56800	0	0	0
devices_arch/xtensa	0	0	0
devices_arch/ezhv	0	0	0
devices_arch	0	0	0
devices_DSC/MC56F80xxx	0	0	0
devices_DSC/MC56F81xxx	0	1	0
devices_DSC/MC56F82xxx	0	0	0
devices_DSC/MC56F83xxx	0	1	0
devices_DSC/MC56F84xxx	0	0	0
devices_DSC/MC56F85xxx	0	0	0
devices_DSC	0	0	0
devices_Kinetis/K	0	0	0
devices_Kinetis/K32L	0	0	0
devices_Kinetis/KE	0	0	0
devices_Kinetis/KM	0	0	0
devices_Kinetis	0	0	0
devices_LPC/LPC51U68	0	0	0
devices_LPC/LPC800	0	0	0
devices_LPC/LPC54000	0	0	1
devices_LPC/LPC5500	0	0	7
devices_LPC	0	0	0
devices_MCX/MCXA	0	0	0
devices_MCX/MCXC444	0	0	0
devices_MCX/MCXC242	0	0	0
devices_MCX/MCXC041	0	0	0
devices_MCX/MCXE24	0	0	0
devices_MCX/MCXE31	0	0	0
devices_MCX/MCXL	0	0	1
devices_MCX/MCXN	0	0	1
devices_MCX/MCXW	0	0	2
devices_MCX/MCXW23_Timer_Manager	0	0	0
devices_MCX/MCXW23_Power_Manager	0	0	0
devices_MCX	0	0	0
devices_RT/RT1010	0	0	0
devices_RT/RT1015	0	0	0
devices_RT/RT1020	0	0	0
devices_RT/RT1040	0	0	0
devices_RT/RT1050	0	0	0
devices_RT/RT1060	0	0	0
devices_RT/RT1064	0	0	0
devices_RT/RT1160	0	0	0
devices_RT/RT1170	0	0	1
devices_RT/RT1180	0	0	1
devices_RT/RT500	0	0	0
devices_RT/RT600	0	0	0
devices_RT/RT700	0	0	4
devices_RT	0	0	0
devices_Wireless/KW	0	4	0
devices_Wireless/RW	0	0	0
devices_Wireless/RW_iped	0	0	0
devices_Wireless/RW_romapi	0	0	0
devices_Wireless	0	0	0
devices_iMX/iMX7ULP	0	0	0
devices_iMX/iMX8M	0	0	0
devices_iMX/iMX8MM	0	0	0
devices_iMX/iMX8MN	0	0	0
devices_iMX/iMX8MP	0	0	0
devices_iMX/iMX8ULP	0	0	1
devices_iMX/iMX93	0	0	0
devices_iMX/iMX95	0	0	0
devices_iMX/iMX943	0	0	0
devices_iMX	0	0	0
drivers/sbom	0	0	0
drivers/biss	0	0	0
drivers/endat2	0	0	0
drivers/endat3	0	3	2
drivers/hiperface	0	0	0
drivers/acmp	0	0	0
drivers/acmp_1	0	0	0
drivers/adc12	0	0	0
drivers/adc16	0	0	0
drivers/adc_12b1msps_sar	0	0	0
drivers/adc_5v12b_ll18_015	0	0	0
drivers/adc_etc	0	0	0
drivers/aes	0	0	0
drivers/afe	0	0	0
drivers/aipstz	0	0	0
drivers/anactrl	0	0	0
drivers/aoi	0	0	0
drivers/aon_lpadc	0	0	0
drivers/asmc	0	0	0
drivers/asrc	0	0	0
drivers/audmix	0	0	0
drivers/bbnsm	0	0	0
drivers/bctu	0	0	0
drivers/bee	0	0	0
drivers/caam	0	0	0
drivers/cache_armv7_a	0	0	0
drivers/cache_armv7_m7	0	0	0
drivers/cache_cache64	0	0	0
drivers/cache_lmem	0	0	0
drivers/cache_lpcac	0	0	0
drivers/cache_lpcac_n4a_mcxn	0	0	0
drivers/cache_lplmem	0	0	0
drivers/cache_xcache	0	0	0
drivers/cache_llc	0	0	0
drivers/cache_example	0	0	0
drivers/camera_csr	0	0	0
drivers/capt	0	0	0
drivers/casper	0	0	0
drivers/cau3	0	0	0
drivers/ccm32k	0	0	0
drivers/cdog	0	0	0
drivers/ce	0	0	0
drivers/ci_pi	0	0	0
drivers/cic_irb	0	0	0
drivers/clock	0	0	0
drivers/cmc	0	0	0
drivers/cmp	0	0	0
drivers/cmp_1	0	0	0
drivers/cmt	0	0	0
drivers/cns_acomp	0	0	0
drivers/cns_adc	0	0	0
drivers/cns_dac	0	0	0
drivers/common	0	0	0
drivers/cop	0	0	0
drivers/crc	0	0	0
drivers/ela_csec	0	0	0
drivers/csi	0	2	0
drivers/ctimer	0	0	0
drivers/dac	0	0	0
drivers/dac12	0	0	0
drivers/dac14	0	0	0
drivers/dac_1	0	0	0
drivers/dcdc_1	0	0	0
drivers/dcic	0	0	0
drivers/dcif	0	0	0
drivers/dcif_1	0	0	0
drivers/dcp	0	0	0
drivers/dma	0	0	0
drivers/dma3	0	0	1
drivers/dmamux	0	0	0
drivers/dmic	0	0	0
drivers/dpr	0	0	0
drivers/dpu	0	0	0
drivers/dpu_1	0	0	0
drivers/dpu_irqsteer	0	0	0
drivers/dryice	0	0	0
drivers/dryice_digital	0	0	0
drivers/dsc_adc16	0	0	0
drivers/dsc_cadc	0	0	0
drivers/dsc_cmp	0	0	0
drivers/dsc_cop	0	0	0
drivers/dsc_crc	0	0	0
drivers/dsc_crc16	0	0	0
drivers/dsc_dac	0	0	0
drivers/dsc_dma	0	0	0
drivers/dsc_dmamux	0	0	0
drivers/dsc_edma	0	0	0
drivers/dsc_edma3	0	0	0
drivers/dsc_eqdc	0	0	0
drivers/dsc_ewm	0	0	0
drivers/dsc_flash	0	0	0
drivers/dsc_flexcan	0	1	1
drivers/dsc_freqme	0	0	0
drivers/dsc_mau	0	0	0
drivers/dsc_gpio	0	0	1
drivers/dsc_i2c	0	0	0
drivers/dsc_inputmux	0	0	0
drivers/dsc_lpi2c	0	0	1
drivers/dsc_mscan	0	0	0
drivers/dsc_opamp	0	0	0
drivers/dsc_opamp_1	0	0	0
drivers/dsc_pdb	0	0	0
drivers/dsc_pit	0	0	0
drivers/dsc_pmc	0	0	0
drivers/dsc_pwm	0	0	0
drivers/dsc_qdc	0	0	0
drivers/dsc_qtmr	0	0	0
drivers/dsc_rgpio	0	0	0
drivers/dsc_sim	0	0	0
drivers/dsc_wrap	0	0	0
drivers/dsc_xbara	0	0	0
drivers/dspi	0	0	0
drivers/dual_adc	0	0	0
drivers/easrc	0	0	1
drivers/ecspi	0	0	0
drivers/edma	0	0	0
drivers/edma4	0	0	0
drivers/edma4_trigger	0	0	0
drivers/eeprom	0	0	0
drivers/eim	0	0	0
drivers/elcdif	0	0	0
drivers/elec_spec	0	0	0
drivers/elemu	0	0	0
drivers/emc	0	0	0
drivers/emios	0	0	0
drivers/enc	0	0	0
drivers/lpc_enet	0	0	0
drivers/mcx_enet	0	0	0
drivers/enet	0	0	2
drivers/enet_qos	0	0	2
drivers/netc	0	0	2
drivers/netc_timer_trigger	0	0	0
drivers/netc_hsr_switch	0	0	0
drivers/epdc	0	0	0
drivers/eqdc	0	0	0
drivers/erm	0	0	0
drivers/esai	0	0	0
drivers/espi	0	0	0
drivers/evtg	0	0	0
drivers/ewm	0	0	0
drivers/flash	0	0	0
drivers/flash_ftmr	0	0	0
drivers/flash_k4	0	0	0
drivers/flash_k4_iap	0	0	0
drivers/flashiap	0	0	0
drivers/flash_c40	0	0	0
drivers/flexbus	0	0	0
drivers/flexcan	0	0	0
drivers/flexcomm	0	6	6
drivers/flexcomm_usart	0	0	0
drivers/flexcomm_i2s	0	0	0
drivers/flexcomm_spi	0	0	0
drivers/flexcomm_i2c	0	0	0
drivers/flexio_i2s	0	0	0
drivers/flexio	0	0	0
drivers/flexio_camera	0	0	0
drivers/flexio_i2c	0	0	0
drivers/flexio_mculcd	0	0	0
drivers/flexio_spi	0	0	1
drivers/flexio_uart	0	0	1
drivers/flexio_trigger	0	0	2
drivers/flexpwm	0	0	0
drivers/flexram	0	0	0
drivers/flexspi	0	0	1
drivers/flexspi_flr	0	0	0
drivers/fmc	0	0	0
drivers/fmeas	0	0	0
drivers/fract_pll	0	0	0
drivers/ftm	0	0	0
drivers/gdet	0	0	0
drivers/gdma	0	0	0
drivers/gint	0	0	0
drivers/glikey	0	0	0
drivers/gpc	0	0	0
drivers/gpc_1	0	0	0
drivers/gpc_2	0	0	0
drivers/gpio	0	0	0
drivers/gpio_1	0	0	0
drivers/gpt	0	0	0
drivers/hashcrypt	0	0	0
drivers/hscmp	0	0	0
drivers/i2c	0	0	0
drivers/i3c	0	0	4
drivers/iap	0	0	0
drivers/iap1	0	4	0
drivers/iap3	0	0	0
drivers/npx	0	0	0
drivers/iee	0	0	0
drivers/iee_apc	0	0	0
drivers/ieer	0	0	0
drivers/igpio	0	0	0
drivers/ii2c	0	0	0
drivers/imu	0	0	0
drivers/inputmux	0	0	0
drivers/intc	0	0	0
drivers/intm	0	0	0
drivers/intmux	0	0	0
drivers/iped	0	0	0
drivers/ipwm	0	0	0
drivers/irq	0	0	0
drivers/irqsteer	0	0	0
drivers/irqsteer_1	0	0	0
drivers/irtc	0	0	0
drivers/isi	0	1	0
drivers/itrc	0	0	0
drivers/itrc_1	0	0	0
drivers/iuart	0	0	0
drivers/jpegdec	0	0	1
drivers/kbi	0	0	0
drivers/key_manager	0	0	0
drivers/kpp	0	0	0
drivers/lcdic	0	0	0
drivers/lcdif	0	0	0
drivers/lcdifv2	0	0	0
drivers/lcdifv3	0	0	0
drivers/lcu	0	0	0
drivers/ldb	0	0	0
drivers/ldb_1	0	0	0
drivers/ldb_combo_phy	0	0	0
drivers/lin	0	0	0
drivers/llwu	0	0	0
drivers/lmem	0	0	0
drivers/lpadc	0	0	0
drivers/lpacmp	0	0	0
drivers/lpc_acomp	0	0	0
drivers/lpc_adc	0	0	0
drivers/lpc_crc	0	0	0
drivers/lpc_dac	0	0	0
drivers/lpc_dma	0	0	0
drivers/lpc_freqme	0	0	0
drivers/lpc_gpio	0	0	0
drivers/lpc_i2c	0	0	0
drivers/lpc_i2c_1	0	0	0
drivers/lpc_iocon	0	0	0
drivers/lpc_iocon_lite	0	0	0
drivers/lpc_iopctl	0	0	0
drivers/lpc_lcdc	0	0	0
drivers/lpc_minispi	0	0	0
drivers/lpc_miniusart	0	0	0
drivers/lpc_rit	0	0	0
drivers/lpc_rtc	0	0	0
drivers/lpc_spi_ssp	0	0	0
drivers/lpc_vspi	0	0	0
drivers/lpc_vusart	0	0	0
drivers/lpcmp	0	0	0
drivers/lpflexcomm	0	11	5
drivers/lpi2c	0	0	0
drivers/lpit	0	0	0
drivers/lpit_trigger	0	0	0
drivers/lpsci	0	0	0
drivers/lpspi	0	5	0
drivers/lpspi_trigger	0	0	0
drivers/lptmr	0	0	0
drivers/lptmr_trigger	0	0	0
drivers/lpuart	0	1	1
drivers/lpuart_trigger	0	0	0
drivers/ltc	0	0	0
drivers/mailbox	0	0	0
drivers/mau	0	0	0
drivers/mcan	0	0	0
drivers/mcg	0	0	0
drivers/mcglite	0	0	0
drivers/mcm	0	0	0
drivers/mcx_cmc	0	0	0
drivers/mcx_romapi	0	0	0
drivers/mcx_spc	0	0	0
drivers/mcx_vbat	0	0	0
drivers/mcxa_romapi	0	0	0
drivers/mecc	0	0	0
drivers/mipi_csi2rx	0	0	0
drivers/mipi_csi2rx_dwc	0	0	0
drivers/mipi_csi2rx_dwc_1	0	0	0
drivers/mipi_dsi	0	0	0
drivers/mipi_dsi_imx	0	0	0
drivers/mipi_dsi_split	0	0	0
drivers/mipi_dsi_split_1	0	0	0
drivers/mipi_dsi2_dwc	0	0	0
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drivers/qsci	0	0	1
drivers/qspi	0	0	0
drivers/qtmr_1	0	0	0
drivers/qtmr_1_trigger	0	0	0
drivers/qtmr_2	0	0	0
drivers/queued_spi	0	0	1
drivers/rcm	0	0	0
drivers/rdc	0	0	0
drivers/rdc_sema42	0	0	0
drivers/reset	0	0	0
drivers/rgpio	0	0	0
drivers/rng	0	0	0
drivers/rng_1	0	0	0
drivers/rnga	0	0	0
drivers/rtc	0	0	0
drivers/rtc_1	0	0	0
drivers/rtc_jdp	0	0	0
drivers/rtc_analog	0	0	0
drivers/rtd_cmc	0	0	0
drivers/rtwdog	0	0	0
drivers/s3mu	0	0	0
drivers/sai	0	0	8
drivers/sar_adc	0	0	1
drivers/sar_adc_trigger	0	0	0
drivers/scg	0	0	0
drivers/sctimer	0	0	2
drivers/sdadc	0	0	0
drivers/sdhc	0	0	0
drivers/sdif	0	0	0
drivers/sdioslv	0	0	0
drivers/sdma	0	0	0
drivers/sdu	0	0	0
drivers/sema4	0	0	0
drivers/sema42	0	0	0
drivers/semc	0	0	0
drivers/sfa	0	0	0
drivers/sha	0	0	0
drivers/sim	0	0	0
drivers/sim0	0	0	0
drivers/sinc	0	0	0
drivers/sinc_trigger	0	0	0
drivers/slcd	0	0	0
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drivers/smartcard	0	0	2
drivers/smartdma	0	0	0
drivers/smc	0	0	0
drivers/smm	0	0	0
drivers/smscm	0	0	0
drivers/snvs_hp	0	0	0
drivers/snvs_lp	0	0	0
drivers/software_i2s	0	0	0
drivers/spc	0	0	0
drivers/spdif	0	2	1
drivers/spi	0	0	1
drivers/spifi	0	0	0
drivers/spm	0	0	0
drivers/sramc	0	0	0
drivers/sramctl	0	0	0
drivers/src	0	0	0
drivers/src1	0	0	0
drivers/ssarc	0	0	0
drivers/supply	0	0	0
drivers/swm	0	0	0
drivers/swt	0	0	0
drivers/syscon	0	0	0
drivers/sysctl	0	0	0
drivers/sysctr	0	0	0
drivers/sysmpu	0	0	0
drivers/syspm	0	0	0
drivers/tdet	0	0	0
drivers/tempmon	0	0	0
drivers/tempsense	0	0	0
drivers/tempsensor	0	0	0
drivers/tenbaset_phy	0	0	0
drivers/tmu	0	0	0
drivers/tmu_1	0	0	0
drivers/tmu_2	0	0	0
drivers/tmu_3	0	0	0
drivers/tpm	0	0	3
drivers/tpm_trigger	0	0	0
drivers/trdc	0	0	0
drivers/trdc_1	0	0	0
drivers/dsc_mbc	0	0	0
drivers/trgmux	0	0	0
drivers/trng	0	0	1
drivers/tsc	0	0	0
drivers/tsi	0	0	0
drivers/tspc	0	0	0
drivers/tstmr	0	0	0
drivers/uart	0	0	0
drivers/usdhc	0	0	0
drivers/utick	0	0	0
drivers/vbat	0	0	0
drivers/virt_wrapper	0	0	0
drivers/vref	0	0	0
drivers/vref_1	0	0	0
drivers/waketimer	0	0	0
drivers/wdog	0	0	0
drivers/wdog01	0	0	0
drivers/wdog32	0	0	0
drivers/wdog8	0	0	0
drivers/wkt	0	0	0
drivers/wuu	0	0	0
drivers/wkpu	0	0	0
drivers/wwdt	0	0	0
drivers/stm	0	0	0
drivers/cmu_fc	0	0	0
drivers/cmu_fm	0	0	0
drivers/xbar	0	0	0
drivers/xbar_1	0	0	0
drivers/xbara	0	0	0
drivers/xbarb	0	0	0
drivers/xbic	0	0	0
drivers/xecc	0	0	0
drivers/xrdc	0	0	0
drivers/xrdc2	0	0	0
drivers/xspi	0	0	2
drivers	0	0	16
midware_coex	0	1	2
midware_audio_voice_components	0	0	0
midware_edgefast_bluetooth	0	0	0
midware_edgefast_open	0	0	160
midware_eiq	0	12	33
midware_eiq_int	0	0	0
middleware_wireless/framework	0	2	1
middleware_wireless/ethermind	0	0	0
middleware_wireless/bluetooth	0	133	1
middleware_wireless/XCVR	0	0	0
middleware_wireless/ble_controller	0	1	0
middleware_wireless/genfsk	0	0	0
middleware_wireless/ieee_802_15_4	0	0	0
midware_fatfs/mmc_disk	0	0	0
midware_fatfs/nand_disk	0	0	0
midware_fatfs/ram_disk	0	0	0
midware_fatfs/sd_disk	0	0	0
midware_fatfs/sdspi_disk	0	0	0
midware_fatfs/usb_disk	0	0	0
midware_freemaster	0	0	2
midware_freemaster_internal	0	0	0
midware_issdk	0	0	0
midware_linstack	0	0	0
midware_littlefs/mflash	0	0	0
midware_g2d_dpu	0	0	0
midware_soem	0	0	0
midware_freemodbus	0	0	0
midware_canopennode	0	0	17
midware_maestro	0	1	29
midware_mbed-crypto	0	0	0
midware_mbedtls	0	0	8
midware_mflash	0	0	0
midware_mmcau	0	0	0
midware_motor_control	0	0	0
midware_metering	0	2	0
midware_multicore/erpc	0	0	0
midware_multicore/mcmgr	0	0	0
midware_multicore/rpmsg	0	1	0
midware_multicore	0	0	0
midware_neo_isp	0	1	1
midware_ntag_i2c_plus	0	0	0
midware_nxp_iot_agent_int	0	0	0
midware_nxp_iot_agent	1	7	28
midware_rtcesl	0	6	0
midware_sdmmc	0	0	9
midware_se_hostlib	0	0	0
midware_secure-subsystem	0	0	0
midware_touch	0	4	12
midware_usb	0	0	42
midware_voice_seeker	0	0	0
midware_voice_spot	0	0	0
midware_vit	0	0	0
midware_wifi	1	11	99
multicore_examples/rpmsg_lite_pingpong_rtos_linux	0	0	0
multicore_examples/rpmsg_lite_pingpong_rtos_no_mcmgr	0	0	0
multicore_examples/rpmsg_lite_str_echo_rtos	0	0	0
rtos_amazon_freertos/freertos_nxp	0	0	0
freertos-drivers	0	0	0
edgelock_firmware	0	0	0
riscv	0	0	0
midware_wpa_supplicant-rtos/nxp_custom	0	0	10
midware_mcu-bootloader	0	0	0
midware_safety	0	0	0
MCUXSDK_Environment_Setup	0	0	0
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cmake_toolchain	0	0	0
west_scripts	0	0	0
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tool_data	0	0	0
Kconfig_CMake_entry_point	0	0	0
mcuxsdk_cmake_package	0	0	0
mcuxsdk_misc	0	0	0
mcuxsdk_license	0	0	0
conn_prebuild_generated	0	0	0
components/sbom	0	0	0
components/adp5585	0	0	0
components/assert	0	0	0
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components/aws_iot	0	0	0
components/button	0	0	0
components/clock	0	0	0
components/cmsis_drivers_dspi	0	0	0
components/cmsis_drivers_ecspi	0	0	0
components/cmsis_drivers_enet	0	0	0
components/cmsis_drivers_flash	0	0	0
components/cmsis_drivers_flexcomm	0	0	4
components/cmsis_drivers_gpio	0	0	0
components/cmsis_drivers_i2c	0	0	0
components/cmsis_drivers_ii2c	0	0	0
components/cmsis_drivers_iuart	0	0	0
components/cmsis_drivers_lpc_i2c	0	0	0
components/cmsis_drivers_lpc_vspi	0	0	0
components/cmsis_drivers_lpi2c	0	0	0
components/cmsis_drivers_lpspi	0	0	1
components/cmsis_drivers_lpuart	0	0	0
components/cmsis_drivers_spi	0	0	1
components/cmsis_drivers_uart	0	0	0
components/cmsis_drivers_prj_conf	0	0	0
components/codec	0	0	22
components/common_task	0	0	0
components/conn_fwloader	0	0	3
components/crc	0	0	0
components/debug_console	0	0	0
components/debug_console_lite	0	0	0
components/debug_console_rtt	0	0	0
components/display	0	0	0
components/touch	0	0	0
components/camera	0	0	4
components/video	0	0	3
components/edgefast_wifi	0	0	1
components/ele_base_api	0	0	0
components/v2x_base	0	0	0
components/v2x_fce	0	0	1
components/ele_crypto	0	0	0
components/ele_hseb	0	0	4
components/crypto_benchmark	0	0	0
components/exception_handling	0	0	0
components/expander	0	0	0
components/flash_nand_semc	0	0	0
components/flash_nand_flexspi	0	0	0
components/flash_nand_xspi	0	0	0
components/flash_nor_flexspi	0	0	0
components/flash_nor_lpspi	0	0	0
components/flash_nor_xspi	0	0	4
components/flash_nor_spifi	0	0	1
components/format	0	0	0
components/gpio	0	0	0
components/i2c	0	0	0
components/i3c_bus	0	0	0
components/imu_adapter	0	0	3
components/imx_sm_crc	0	0	0
components/internal_flash	0	0	0
components/eeprom_emulation	0	0	0
components/mflash	0	0	0
components/IS42SM16800H	0	0	0
components/led	0	0	0
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components/log	0	0	0
components/mem_manager	0	0	0
components/messaging	0	0	0
components/misc_utilities	0	0	0
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components/mt48lc2m32b2	0	0	0
components/mt48lc4m16a2	0	0	0
components/mx25l_flash	0	0	0
components/mx25r_flash	0	0	0
components/notifier	0	0	0
components/osa	0	0	0
components/panic	0	0	0
components/phy	0	0	2
components/pinctrl	0	0	0
components/pmic_pf5020	0	0	0
components/pmic_pf3000	0	0	0
components/pmic_pf1550	0	0	0
components/pmic_pca9422	0	0	2
components/pmic_pca9420	0	0	0
components/pmic_pf9453	0	0	0
components/power	0	0	0
components/power_manager	0	0	1
components/psa_crypto_driver	1	1	48
components/pwm	0	0	0
components/reset	0	0	0
components/reset1	0	0	0
components/rng	0	0	0
components/rpmsg	0	0	0
components/rtc	0	0	0
components/rtt	0	0	0
components/scmi	0	0	0
components/sdu	0	0	1
components/sensor_fxls8974cf	0	0	0
components/sensor_fxos8700cq	0	0	0
components/sensor_icm42688p	0	0	0
components/sensor_p3t1755	0	0	0
components/sensor_lsm6dso	0	0	1
components/sensor_nmh1000	0	0	0
components/sensor_tmp117	0	0	0
components/serial_manager	0	0	0
components/serial_mwm	0	0	0
components/shell	0	0	0
components/silicon_id	0	0	0
components/slcd_engine	0	0	0
components/sm	0	0	0
components/smbus	0	0	0
components/smt	0	0	0
components/spi	0	0	0
components/srtm	0	0	3
components/str	0	0	1
components/sx1502	0	0	1
components/systick_timer	0	0	0
components/time_stamp	0	0	0
components/timer	0	0	0
components/timer_manager	0	0	0
components/uart	0	0	2
components/memfault_integration	0	0	0
components/unity	0	0	0
components/wifi_bt_module	0	0	0
components/coredump	0	0	0
components/gen_hal	0	0	0
components/semihost	0	0	0
components	0	0	0

Release Notes

Contents

Release Notes#

Overview#

Release Highlights#

Manifest & Repository Changes#

Summary#

Added Repositories#

Removed Repositories#

Impact on west update#

What’s New#

New Features#

Fundamental#

Security#

Connectivity & Wireless#

ML / DSP / Multimedia#

RTOS#

Boot#

Motor Control#

Safety#

New Platform / Device Support#

Enhancements#

Fundamental#

Device Support#

Security#

Connectivity & Wireless#

ML / DSP / Multimedia#

Filesystem#

Multicore#

Bug Fixes#

Fundamental#

Security#

Connectivity & Wireless#

Filesystem#

Boot#

Multicore#

ML / DSP / Multimedia#

Breaking Changes#

Known Issues#

Toolchain & Environment Support#

Final Release Summary#

Development Systems and Metrics#

Impact on `west update`#