Reporting period: Monday, September 14, 2026 to Sunday, September 20, 2026 — 7 calendar days, 5 publishing days Sources: This publication’s daily RT-Thread updates (09-14, 09-15, 09-16, 09-17, 09-18 — 5 issues) + RT-Thread WeChat official account posts for this period (9 articles) Editorial note: This period covers five dimensions — the RT-Thread kernel and releases, toolchain, ecosystem vendor adaptation, community activities, and industry applications. All items come from verified sources in the daily reports and WeChat posts for the period.

I. Weekly Highlights

  1. RT-Thread v5.3.0 major release, official changelog pushed this week (WeChat Official Account): Adds Rust language support (ARM / AArch64 / RISC-V); device model substantially enhanced with DVFS dynamic voltage and frequency scaling and VirtIO 1.2; kernel fixes IPC / LWP timeout wakeup race conditions and adds 8-bit and 16-bit atomic operations; BSP side adds Raspberry Pi 5, XuanTie C908X, GD32VW553 and other platforms.
  2. XuanTie C908 platform RISC-V support merged in three consecutive commits (09-15): rt-smart, MMU and SMP support all enter the mainline, totaling 31 files, approximately 2,575 lines added and 565 lines removed; MMU completes SV39 / SV48 / SV57 address modes; validation platform is the QEMU-emulated xiaohui C908. This core thus advances from single-core operation to a stage where multi-core user-space validation is possible.
  3. Gino Pi development board forms a complete chain of sales, adaptation and debugging (09-15 ~ 09-16): On 09-15, officially launched in partnership with GigaDevice (launch discount of 80 RMB); on 09-16, JLink debugging chain completed (50 example projects); during the same period, the RuiChing industrial development platform debuted adaptation for Gino Pi, providing the RuiChing Studio one-stop environment and 12 out-of-the-box example projects.
  4. env toolchain jumps to v2.0.0 and immediately follows up with v2.0.2 (09-16): Version number leaps from 1.5.x directly to 2.0.0, the first release since April 2024; configuration system refactored with kconfiglib, Windows side switched to registered commands, new sdk command and e-build embedded build system added, env.json introduced as single source of information, distribution name adjusted to rt-env.
  5. Media collectively focus on elexcon: 2.5 billion installations and triple highest-level certifications (WeChat Official Account): During the 23rd Shenzhen International Electronics Exhibition, Ta Kung Pao, Nanfang Daily, Guangzhou Daily, Guangdong Radio and Television YueTV, Shenzhen Radio and Television and others intensively reported on RT-Thread: cumulative installations exceed 2.5 billion units, developers exceed 300,000; RT-Thread Safety OS simultaneously holds IEC 61508 SIL3, EN 50128 SIL4 and ISO 26262 ASIL-D triple certifications, the only one in China; during the exhibition it received the “Edge AI Solution Innovation Award.”
  6. University-industry integration and internationalization layout accelerate (WeChat Official Account + 09-17 official release): Domestically, cooperation has been established with approximately 200 universities; overseas, with Southeast Asia as the fulcrum, after cooperation landed with multiple Thai institutions (Thammasat, Mahidol, KMUT system, etc.), an early-August trip to Malaysia resulted in the signing of a university-enterprise cooperation agreement with Wawasan Open University, along with in-depth discussions with USM, UM, UNITEN and other universities on curriculum co-development and joint laboratories.
  7. University competitions and community content produced intensively (09-15 ~ 09-18): Results of the 9th National University Student Embedded Chip and System Design Competition national finals announced; Shenzhen Technology University won the grand prize RT-Thread Cup and 3 national first prizes; community forum introductory tutorial series, competition open-source projects and graphical configuration tool discussion threads constitute the main body of new content within the window.
  8. Official news channel zero updates across the entire period: The latest entry on the official news interface remains at 2026-06-17, with no additions for the twenty-second through twenty-ninth consecutive days; product launches and event previews are all first released via the WeChat Official Account, official website store and forum channels.

II. Kernel and Release Dynamics

Releases and Mainline

  • v5.3.0 major release (released 09-10, official changelog pushed this week): This is RT-Thread’s most substantial major release in recent years, with highlights including the addition of Rust language support and a major enhancement of the device-tree-based device model (DM) on SoCs, introducing key features such as dynamic voltage and frequency scaling (DVFS) and VirtIO 1.2.
  • Mainline resumes normal merges after release wrap-up (from 09-14): Merges this cycle cover peripheral driver enhancements, new-series BSP landings, architecture backend completions, and linker script fixes. The mainline version number remains v5.3.1, with no new releases within the window; the latest official release remains v5.3.0 from 09-10.
  • Toolchain releases twice in one week: The daily briefing at the start of the period covered Env v1.5.3 (released 09-10, the first release of this tool since April 2024); six days later, env shipped v2.0.0 and v2.0.2 back-to-back (09-16), jumping the version number to 2.0.0.

Key Changes in v5.3.0 (per official changelog)

  • Kernel: Fixed a race condition in timeout wakeup handling rights in IPC and LWP wait flows; added 8-bit and 16-bit atomic operation support; computes recent CPU usage of threads incrementally by sampling window; prohibits suspending the idle thread; releases mutexes held by a thread when it is deleted.
  • Rust support: Added a Rust component with target detection for ARM, AArch64, and RISC-V, integrating SCons / Cargo; provides Rust wrappers for threads, mutexes, semaphores, message queues, memory, time, and files, along with examples for applications, components, and dynamic modules; added procedural macros for initialization and command registration.
  • Device model (DM): Extended device model APIs, device probing, property access, and OFW support, with OFW enabled on Cortex-M targets; refactored the clock framework and added DVFS (including CPU and device frequency management), ARM SCMI firmware integration, and a generic machine power interface; added UFS, DesignWare AHCI, generic MTD, and NVMEM support; added VirtIO 1.2 (compact queues, MMIO / PCI transport, and DMA synchronization) plus 9P, crypto, RNG, SCMI, and SCSI drivers; added RPMSG and TEE support; added IEEE 1588 PTP clock support.
  • RISC-V: Added SMP support for QEMU virt64 and DAMO XuanTie C/R series processors; added DAMO XuanTie C908X processor support; added C908 Svpbmt support and corrected cacheable attributes and page table attributes for C906 / C908.
  • File system and networking: DFS added 9PFS support (for sharing files with virtual machines such as QEMU), Elm FatFs updated to R0.16; networking added optional AF_UNIX stream and datagram sockets (supporting SCM_RIGHTS descriptor passing), and added a SAL local protocol provider that requires no network device.
  • New BSP platforms: Raspberry Pi 5 (BCM2712 / RP1 device model), DAMO XuanTie XiaoHui C908X, GD32VW553H-EVAL, NXP FRDM-i.MX91 and i.MX RT1180 EVK, Renesas EK-RA6W1 and RA8P1 Titan, Rockchip RK3528, STM32F407 MICU, HC32F4A2, N32H760 / 497 / 487, NS800RT7P65, and more.
  • Tools and CI: Improved VS Code compilation database handling; Keil project generation preserves the priority order of SCons header search paths; Zig build scripts adapted for Zig 0.14+; added ArmClang BSP build coverage, SMP automated testing, and MemBrowse memory usage reports; format checking with clang-format; added Issue automation.

Fixes Merged into Mainline This Week (chronological)

  • Two corrections to the QEMU getting-started documentation merged, completing apt dependency packages and updating broken toolchain download links (09-11, #11789 / #11794)
  • STM32 SPI BDMA support merged, unifying configuration across the three transfer channel types DMA / BDMA / GPDMA (09-14, #11689)
  • Three consecutive merges for DAMO XuanTie C908 platform rt-smart, MMU, and SMP support (09-15, #11775)
  • STM32 Ethernet driver completes migration to the new hardware abstraction layer interface, verified on both F4 and H7 platforms (09-15, #11781)
  • STM32N657 Nucleo BSP merged into mainline, 83 files, approximately 17,884 new lines (09-16, #11799)
  • Nsing N32H three-series driver extensions merged into mainline, covering three evaluation boards (09-16, #11800)
  • Xiaohua Semiconductor HC32 series BSP configuration sync merged into mainline, 52 files (09-16, #11798)
  • Fixed linking issue with STM32 direct memory access driver type-name functions (09-16, #11803)
  • Fixed STM32 GCC linker script capacity validation, covering 110 linker scripts (09-17, #11805)
  • LLVM ARM CI dependency fix merged, installing a terminal information library dependency for that pipeline (09-17, #11807)

Security and Defects

  • Four security-related issues closed in a batch (09-13): Involving a tmpfs path component stack buffer overflow, unbounded stack overflow and off-by-one error in POSIX message queue name handling, out-of-bounds heap read from large negative pread offsets, and heap out-of-bounds write caused by untrimmed finsh completion results (#11735 ~ #11738). All four were marked closed on the afternoon of 09-13, with no corresponding fix commits visible in the public record for each.
  • SDIO driver deregistration failure and node memory leak (reported 09-12, fix proposed 09-17): The original logic only frees the driver registration node when an SDIO card is matched; when no card is present or no match occurs, the node is not freed, causing memory leaks with repeated registration and deregistration. The fix removes and frees the node from the driver linked list regardless of whether a matching card exists, and only invokes the removal callback when a card is matched.
  • STM32 firmware over-capacity defect closed (09-17): This report had remained open since it was filed in January of this year and was closed alongside the linker script capacity validation fix.

Review Queue Observations

  • Long-running network stack upgrade: The lwip 2.2.1 support proposal (#11797) was re-pushed and iterated multiple times within the window, spanning 1,874 files with approximately 346,000 new lines. The validation platform is the NXP i.MX RT1180 evaluation board, and third-party memory comparison determined no change in memory footprint was introduced. Whether it will be merged remains to be seen.
  • Dense submissions of new BSPs and domestic MCU drivers: The STM32N657 Nucleo BSP was force-pushed four times in a single day on 09-14 to fix CI issues; Nsing N32H three-series responded to automated review issues one by one in the review thread before re-pushing; Xiaohua Semiconductor HC32 series and STMicroelectronics STM32N657 series form the bulk of the review queue.
  • Three routine fixes enter review at the end of the window (09-17): STM32H7 generic DMA adds UART4 receive-side definitions (#11808), block device partition component log format specifiers and parameter types corrected (#11809), and LLVM ARM CI dependencies completed (#11807, merged the same day).
  • Architecture backend moves from review to merge: DAMO XuanTie C908’s QEMU rt-smart support (#11775, opened 08-31) completed merging on 09-15, with MMU’s three address modes and SMP all in place simultaneously.

III. Ecosystem and Vendor Adaptation

Vendor BSPs

  • NXP STM32N657 Nucleo BSP merged (09-16): 83 files, ~17,884 lines added; the accompanying STM32N657xx FSBL software package index was merged earlier on 09-14, making this series complete on both the BSP and software package sides.
  • Nations Technology N32H three-series merged (09-16): Covers three evaluation boards — N32H760, N32H497, and N32H487 — with 70 files and ~8,096 lines added; roughly five to six days from submission to merge.
  • Xiaohua Semiconductor HC32 series BSP configuration sync (09-16): 52 files; domestic MCU BSP maintenance remains active.
  • GD32 downstream cleanup and new series progress: New BSPs such as GD32VW553H-EVAL entered the mainline, and GD32-related repository cleanup was completed on the software package side; the RuiChing platform completed first-batch Gino Pi adaptation based on the GD32 preview release (12 example projects).
  • STMicro Ethernet migration and driver fixes: The STM32 Ethernet driver completed migration to the new hardware abstraction layer interface (validated on F4 and H7 platforms); the window also included a fix for an STM32 direct memory access driver linking issue.

Software Packages and Middleware

  • CanopenNode software package updated to v1.2.0: The CANopen protocol stack version advanced, available for industrial fieldbus applications.
  • Virtual sensor and MQTT ecosystem updates: The virtual sensor software package and MQTT-related components saw version activity within the window.
  • STM32F4 device package sync: The device package was updated alongside the mainline; the STM32N657xx FSBL software package index was merged ahead of the BSP.
  • Software package mirror and source updates: The software package index repository saw continuous commits within the window.

In Depth: Gino Pi and the RuiChing Platform (WeChat Official Account)

  • Gino Pi is the first GD32H77D ecosystem development board built by RT-Thread in partnership with GigaDevice: main controller GD32H77DIWK7 (Arm Cortex-M7 @ 600MHz), 2MB Execution Flash + 7.5MB Storage Flash, 1.2MB SRAM + 640KB TCM, onboard GD32VW553 Wi-Fi module, MIPI-DSI 720P screen interface, offered as a board + screen bundle, targeting IoT, industrial control, and human-machine interaction scenarios.
  • The RuiChing industrial development platform’s first-batch adaptation is based on “RuiChing SDK + RuiChing HDK + RT-Thread Professional Edition + RuiChing IDE + Open Platform,” providing the RuiChing Studio one-stop development environment (graphical system configuration, software package center, one-click compile-download-debug, offline-capable), and adapting 12 example projects (1 basic introduction, 7 OS and IPC components, 4 hardware peripheral drivers).
  • Supporting materials: The RuiChing platform documentation center provides getting-started guides, example tutorials, and development guides; the Gino Pi new board walkthrough and SDK repository links were released alongside the sales announcement.

Verification Notes

  • The 09-14 ~ 09-18 entries in this report follow the verified sources from that day’s newspaper; WeChat Official Account entries (v5.3.0, Gino Pi, RuiChing, media, internationalization, events) are based on the original posts, with dates cross-referenced between the post pages and the daily report; places lacking secondary confirmation are noted.

IV. Official and Community Activities

WeChat Official Account Digest (9 Posts)

CIIF Workshop Registration{width=32%}

1. Hands-On Workshop at CIIF: Move AI Capabilities from Cloud to Edge (Registration)

  • During the 26th China International Industry Fair, RT-Thread will host a hands-on workshop on AI edge smart cars, October 13 (Tuesday) 13:00–17:00, at the New-Generation Smart Manufacturing exhibition area of the National Exhibition and Convention Center (Shanghai). Free to attend, limited to 50 participants, two per team.
  • The course is hands-on at its core, with 25 smart car teaching kits and senior engineers guiding throughout, covering the full workflow: hardware detection, peripheral debugging, real-time control, SLAM mapping, autonomous navigation, camera calibration, multimodal visual following, and AR integrated exercises.
  • On-site exhibits will also showcase industrial control devices, mobile robots, embodied intelligence, and flight control units built on the same RT-Thread foundation.
  • Source: https://mp.weixin.qq.com/s/x6VD2HvPUtnSxnseW_kqzA

Media Coverage{width=32%}

2. Mainstream Media Spotlight: “Hidden Champion” RT-Thread Praised for Driving AI Toward Mass Production (Media Perspective)

  • As the 23rd Shenzhen International Electronics Fair concluded, outlets including Ta Kung Pao, Southern Daily, Guangzhou Daily, Guangdong Radio and Television Yue TV, Shenzhen Media Group First Scene, and Shenzhen-Hong Kong Online published intensive coverage spanning industry depth, technology deployment, and regional observation.
  • Coverage highlighted 2.5 billion cumulative installations and a 300,000-developer ecosystem, and noted that RT-Thread Safety OS holds all three top-tier international certifications — IEC 61508 SIL3, EN 50128 SIL4, and ISO 26262 ASIL-D — the only company in China to do so.
  • Source: https://mp.weixin.qq.com/s/482AfK3NhjYahsplQX5Mpg

v5.3.0 Changelog{width=32%}

3. RT-Thread Major Release: v5.3.0 Changelog

  • v5.3.0 highlights: added Rust language support; greatly enhanced the device tree-based device model (DM), introducing DVFS dynamic voltage and frequency scaling and VirtIO 1.2; added 9PFS, AF_UNIX sockets, and other features.
  • Architecture and platforms: on the RISC-V side, added QEMU virt64 and XuanTie C/R series SMP, plus XuanTie C908X support; new BSPs include Raspberry Pi 5, GD32VW553, i.MX RT1180, Renesas RA8P1, and Rockchip RK3528.
  • Engineering and quality: added SMP automated testing, MemBrowse memory usage reports, clang-format checks, and Issue automation; utest added AF_UNIX, pin loopback, and SPI tests.
  • Source: https://mp.weixin.qq.com/s/FzIkAjL2OyF58XV-NqZNtA

Southeast Asia Industry-Education Integration{width=32%}

4. With Southeast Asia as a Fulcrum, RT-Thread Accelerates University Industry-Education Integration and Internationalization of Its Open Source Ecosystem

  • Domestically, deep partnerships have been established with about 200 universities, forming a complete industry-education chain spanning joint course development, joint labs, faculty training, certification bases, and talent pipelines.
  • Overseas, Southeast Asia is a key starting point: in Thailand, partnerships have been reached with Thammasat, Mahidol, King Mongkut’s, Rajamangala, and other institutions; an early August trip to Malaysia included signing a university-enterprise cooperation agreement with Wawasan Open University and in-depth discussions on joint courses and labs with USM, UM, UNITEN, XMUM, UCSI, and UniMAP.
  • Source: https://mp.weixin.qq.com/s/pCbqz72iAwNmCmdWIIdaSw

RuiChing Adapts Gino Pi{width=32%}

5. RuiChing Platform First to Adapt Gino Pi: Full-Chain, Out-of-the-Box Support for the GD32H77D Development Board

  • The RuiChing industrial development platform is the first to adapt Gino Pi, based on the RuiChing GD32 preview release, covering the one-stop RuiChing Studio development environment and 12 out-of-the-box example projects.
  • Gino Pi specs: GD32H77DIWK7 (Cortex-M7 @ 600MHz) plus a dedicated math acceleration engine, MIPI-DSI 720P display, onboard GD32VW553 Wi-Fi, and support for GD-Link and JLink debugging.
  • Livestream rescheduling note: the RuiChing tech livestream originally set for September 16 (RS485 temperature and humidity acquisition in practice) has been moved to September 23 (Wednesday) at 20:00.
  • Source: https://mp.weixin.qq.com/s/4X4pEMkgMBDUWd7gLGjLuQ

NXP N947 Livestream Preview{width=32%}

6. [Livestream Preview] Full Walkthrough of RM Remote Controller Operation Based on RT-Thread and NXP N947

  • The livestream covers RM remote controller practice on the NXP MCX N947 platform (dual-core Cortex-M33 plus NPU): from breaking down the DBUS protocol frame format and efficient DMA interrupt reception to parsing channel data and outputting PWM to drive actuators for closed-loop control.
  • Time: September 17, 2026, 20:00, on the RT-Thread official livestream channel.
  • Source: https://mp.weixin.qq.com/s/Vr8WPub5rrCeJXcgIwiHfw

Lingang Automotive Software Alliance Salon{width=32%}

7. Lingang Automotive Software Alliance 5th Technical Salon Invites You to Explore Innovation Paths (Event Preview)

  • Held September 16 at 14:00 at Horizon Robotics Science Park, with Horizon, Thundersoft, RT-Thread, and other companies sharing the stage, focusing on AI compute, model deployment, operating system foundations, and toolchains.
  • Source: https://mp.weixin.qq.com/s/TRHe1EBZI1gfwlaNiGXXKg

Gino Pi Officially on Sale{width=32%}

8. RT-Thread and GigaDevice Officially Launch Gino Pi, with an 80 RMB Launch Discount

elexcon Full-Stack Capabilities{width=32%}

9. From OS Foundations to AI Deployment: RT-Thread’s Full-Stack Capabilities Anchor Industrial Intelligent Upgrades (News Brief)

  • At elexcon Shenzhen International Electronics Fair, RT-Thread presented its full-stack technical capabilities: end-to-end capabilities from the underlying OS kernel and development toolchain to AI hardware platforms, with exhibits spanning AI flight control, edge computing, intelligent debugging, and high-performance development.
  • Two decades of OS foundations: cumulative installations exceed 2.5 billion, widely used in aerospace, intelligent vehicles, industrial control, and other critical fields; the “RuiChing” industrial platform and “ChengXuan” vehicle OS are deeply integrated into high-end manufacturing scenarios, serving leading enterprises such as State Grid and CRRC.
  • AIOS concept: a hybrid deployment approach places AI inference on the Linux side and real-time control on the RT-Thread side, already validated in scenarios such as wafer fab overhead hoist transport systems and six-axis robots; during the exhibition, it won the “Edge AI Solution Innovation Award.”
  • Source: https://mp.weixin.qq.com/s/Oj-TCxVWaoK5H3dp8LIVCw

Competitions and Industry-Education

  • 9th National University Embedded Chip and System Design Competition (results announced 09-15): Shenzhen Technology University won the grand prize RT-Thread Cup and 3 national first prizes; open-source projects and experience-sharing posts from the competition became new sources of community content.

Community Forum

  • Introductory tutorial series: posts on the MCU C runtime library startup process, PIN and UART introductory chapters, and more continue to be updated, lowering the barrier to entry for beginners.
  • Technical sharing: practical articles published on repository layering management and troubleshooting MQTT high-throughput connection leaks.
  • Tool discussions: discussion threads on graphical configuration tools remain active.

Event Preview Summary

  • CIIF AI Edge Smart Car Workshop: October 13, 13:00–17:00, National Exhibition and Convention Center (Shanghai), free, limited to 50 participants (register via WeChat official account).
  • Lingang Automotive Software Alliance 5th Technical Salon: September 16, 14:00, Horizon Robotics Science Park (already held).
  • NXP N947 RM Remote Controller Livestream: September 17, 20:00 (already aired).
  • RuiChing RS485 Temperature and Humidity Acquisition Livestream: rescheduled to September 23 (Wednesday) 20:00.

Official News Channel

  • The latest entry on the official news feed remains dated 2026-06-17, with no new items for the 22nd through 29th consecutive days; product launches and event previews are first released via the WeChat official account, the official website store, and forum channels.
  • elexcon showcase and award: RT-Thread appeared at the 23rd Shenzhen International Electronics Fair, showcasing a product lineup including AI flight control, edge computing, intelligent debugging tools, and high-performance development boards; it won the “Edge AI Solution Innovation Award.”
  • AI deployment cases: the AIOS hybrid deployment approach (AI inference on the Linux side plus real-time control on the RT-Thread side) has been validated in scenarios such as wafer fab overhead hoist transport systems and six-axis robots; the AI flight control platform jointly launched with Infineon has achieved AI fault detection deployment in the drone sector.
  • Automotive industry engagement: at the Lingang Automotive Software Alliance 5th Technical Salon, RT-Thread shared the stage with Horizon, Thundersoft, and other companies to exchange views on automotive foundational software and edge intelligence foundations.
  • Community application practices: community projects continue to produce output, including a port of the electronic design competition Problem H (balancing ball) solution, Huangshan Pi SF32LB52 watch firmware (v0.4.1), and AWTK graphical interfaces.

VI. Trend Observations

  • Major release cadence established: v5.3.0 centers on Rust support, the device model, and virtualization, with a six-month major release cadence and rising engineering content; the level of public detail in the changelog (kernel, components, BSP, CI, and documentation itemized) also reflects the maturity of the maintenance process.
  • RISC-V mainline adaptation accelerating: the three-in-one merge of XuanTie C908’s rt-smart, MMU, and SMP echoes the C908X and SMP support in v5.3.0, as the RISC-V direction moves from single-core bare-metal operation toward multi-core user-space validation — continued progress along the same trajectory as the lazy FP/RVV proposal.
  • Toolchain modernization settled: env jumps from 1.5.x to 2.0.0; the shift to command-line operation, configuration system refactoring, and single-source mirror addresses will directly affect developers’ daily build workflows, so reviewing compatibility notes before upgrading is recommended.
  • Business loop accelerating: Gino Pi has completed the full cycle of indexing, launch, debugging chain, and platform adaptation; the chip vendor joint development board model (GigaDevice), industrial platform (RuiChing), and vehicle OS (ChengXuan) form a clear productization path.
  • Internationalization and industry-education integration in parallel: university partnerships in Thailand and Malaysia are now in place, complementing a domestic industry-education network of about 200 universities; the “five-dimension model” (courses, labs, faculty, certification, talent pipeline) is becoming the standard playbook for ecosystem expansion.
  • Edge AI is the throughline: from the AIOS concept, the AI KIT tool platform, and flight control and robotics cases to the CIIF workshop, the edge AI deployment narrative spans technology, product, and market, resonating with the “AI Plus” policy direction.

Appendix: Sources and Verification