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RIOT-2023.01 - Release Notes

RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.

RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with partial POSIX compliance).

RIOT is developed by an international open-source community which is
independent of specific vendors (e.g. similarly to the Linux community) and is
licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect
business models around the free open-source software platform provided by RIOT.

About this release

We are proud to announce the release of RIOT 2023.01, marking the tenth
anniversary of the project. Over the past decade, RIOT has become a thriving
open-source community, delivering cutting-edge technology for Internet of
Things (IoT) devices. This release builds on top of the hard work and
dedication of our developers, users, and contributors, and we would like to
extend a heartfelt thank you to everyone who has been a part of our journey.
Here's to another decade of innovation and growth!

Noteworthy changes the 2023.01 release includes, among many fixes and little
things:

  • ztimer_ondemand: The next step towards seamless and automatic power management.
  • The Rust examples now default to stable Rust.

187 pull requests, composed of 570 commits, have been merged since the
last release, and 13 issues have been solved. 37 people contributed with
code in 58 days. 1248 files have been touched with 516544 (+) insertions and
12047 deletions (-).

Notations used below

+ means new feature/item
* means modified feature/item
- means removed feature/item

New features and changes

Core

  • core/lib: define MAYBE_UNUSED (#18884)
  • core/marco: fix DIV_ROUND (#18858)

System Libraries

  • congure_abe: initial import of TCP Alternative Backoff with ECN for
    CongURE (#15968)
  • congure_quic: initial import of QUIC congestion control (#15952)
  • pkg/tinyusb: add common USB descriptors implementation (#18835)
  • sys/bitfield: add bf_find_first_{set, unset}() (#18833)
  • sys/bitfield: add bf_popcnt() (#18879)
  • sys/malloc_tracing: add module to trace dyn memory management (#18912)
  • sys/stdio_uart: add stdio_uart_onlcr (pseudo-) module (#18731)
  • sys/tiny_strerror: add tiny_strerror_minimal (#18768)
  • ztimer: add ztimer_ondemand module for implicit power management (#17607)
  • rust: Use stable Rust (#18839)
  • suit: start worker thread on demand, make suit_handle_url() public (#18551)
  • sys/pm_layered: align pm_blocker_t for speed (#18846)
  • sys/print_stack_usage: update MIN_SIZE (#18917)
  • sys/shell: drop ping6 alias (#18931)
  • sys: preprocessor successor module (#18299)
  • tests/pbkdf2: de-flanky-fy test (#18932)
  • usbus/hid: fix buffer overflow in hid_io (#18860)

Networking

  • examples/gcoap: add IPv4 support (#17763)
  • gnrc/ipv6_auto_subnets: add CONFIG_GNRC_IPV6_AUTO_SUBNETS_STATIC
    option (#17429)
  • gnrc_sixlowpan_frag_sfr: add support for queue-based ECN (#16175)
  • gnrc_sixlowpan_frag_sfr: provide CongURE support (#16156)
  • nanocoap: add support for no-response option (#18154)
  • sys/net/nanocoap: introduce Accept option helper (#18772)
  • sys/net: add Size1 and Size2 option numbers (#18799)
  • drivers/at86rf2xx: migrate to ztimer (#18822)
  • gnrc: make pseudo-modules explicit + documentation improvements (#18727)
  • gnrc_sock_udp: accept response from any address if remote is
    multicast (#18854)
  • gnrc_udp: use small stack-size (#18709)
  • net/nanocoap: remove coap_pkt token ptr (#17983)
  • paho: use GNRC instead of lwip (#18982)
  • sys/include: remove kernel_defines.h where not needed (#18887)

Packages

  • pkg/arduino_sdi_12: bump version, fix patches (#18796)
  • pkg/lvgl: bump to 8.3.3 (#18794)
  • pkg/tinyusb: support for multiple configuration descriptors (#18983)
  • pkg/wamr: Update to WAMR-1.1.1 (#18994)

Boards

  • boards/cc1350: add info concerning shell access (#18808)
  • boards/dwm1001: add saul_gpio support (#18818)
  • boards/lora-e5-dev: add arduino feature (#18792)
  • boards/nucleo-l496zg: add ADC support (#18940)
  • boards: add support for EFM32GG12 Thunderboard Kit (SLTB009A) (#18755)
  • cpu/efm32: add periph_adc support for Gecko Series 2 (#18933)
  • cpu/efm32: add periph_uart_modecfg support for Gecko Series 2 (#18946)
  • drivers/usbdev_synopsys_dwc2: add support for internal UTMI HS PHY (#18714)
  • EFM32: add cpu family EFR32ZG23 and board xG23-PK6068A (#18780)
  • pkg/tinyusb: add nrf52 support (#18781)
  • pkg/tinyusb: add STM32 USB FS device driver (#18786)
  • pkg/tinyusb: add ULPI and UTMI+ HS PHY support for STM32 USB OTG HS
    ports (#18776)
  • boards/blxxxpill-128kib: default to CDC ACM for stdio (#18743)
  • boards/common/nrf52: improve default clock config (#18811)
  • boards/im880b: refactor code (#18451)
  • boards/nucleo-f207zg: support for ADC (#18847)
  • boards/nucleo-l* and g*: update doc concerning Vbat (#18984)
  • cpu/stm32: Fix stm clock configuration (#18797)

CPU

  • cpu/saml21: add interaction with pm_layered for peripheral drivers (#18821)
  • cpu/stm32: add unused backup RAM as extra heap (#18921)
  • debug_irq_disable: add module to debug time spent in irq_disable (#18795)
  • boards/native: Remove macOS as native target (#18735)
  • cpu/efm32: preparing introduction of Gecko Series 2 (#18764)
  • cpu/saml21/pm: allow blocking IDLE mode (#18825)
  • cpu/stm32: improvement of USB device driver selection (#18787)
  • makefiles/cflags.inc.mk: don't include absolute path in FILE
    macro (#18913)
  • makefiles/gnu.inc.mk: set flags based on compiler version (#18935)
  • pkg/gecko_sdk: Bump to version 4.1.2 (#18739)
  • pkg/tinyusb: implement stdio via CDC ACM (#18804)
  • sam0/rtc_rtt: optimizations to get around the painful long syncwaits (#18920)
  • socket_zep: make use of crc16_ccitt_false_update() (#18779)
  • treewide: replace RIOT_FILE_RELATIVE with FILE (#18936)

Device Drivers

  • drivers/at: add a function read a response plus the OK (#18753)
  • matrix_keypad: Add matrix-style keypad module (#18733)
  • drivers/at86rf2xx: isolate netdev logic (#18988)
  • drivers/sdcard_spi: make use of crc16_ccitt_false_update() (#18778)

Documentation

  • boards/cc13xx_cc26xx: remove broken HTML links and headings in doc (#18809)
  • boards/nucleo-l4r5zi: doc improvements (#18747)
  • docs/kconfig: "not longer" -> "no longer" typo (#18922)
  • pkg/tinyusb: update doc for tusb_app_config.h and common descriptor
    handling (#18901)

Build System / Tooling

  • .vscode: import initial RIOT-OS style (#18945)
  • build-system: add capability to execute scripts with custom executor (#18770)
  • dist/tools: add "RESET_PIN" value for the dwm1001 (#18815)
  • examples/gnrc_border_router: add option to re-use existing TAP
    interface (#18836)
  • makefiles/tools/serial.inc.mk: add support for bootterm (#18749)
  • tapsetup: add --loss & --delay option (#18885)
  • tools/cpy2remed: add support for NOD_xxxx removable media (#18824)
  • build system: fix compilation with LLVM (#18845)
  • CI: can_fast_ci_build.py unittests fix (#18996)
  • dist/tools/pyterm: avoid deprecated .setDaemon (#18754)
  • utils/uncrustify: display warning instead of error (#18877)

Kconfig

  • pkg/tinyusb: add Kconfig support for stdio_tinyusb_cdc_acm (#19007)

Examples

  • examples/gcoap: replace _parse_endpoint by sock_udp_name2ep (#17870)
  • examples/timer_periodic_wakeup: switch to ztimer (#19001)
  • examples: Remove macOS references in README (#18850)

Testing

  • tests/pkg_tinyusb*: add a BOARD to make make build (#18888)
  • CI: drop obsolete murdock note (#18905)
  • CI: update murdock yml (#19022)
  • test/unittest: cleanup most vera++ complains (#18807)
  • tests/bitarithm_timings: shorten timeout from 5s to 200ms (#18894)
  • tests/periph_timer: also test for spurious IRQs (#18963)
  • unittests/uri_parser: Rework tests to be more verbose (#18734)

API Changes

  • nanocoap: add request context to coap_handle_req() (#18816)

Uncategorized

  • release-notes.txt: add 2022.10 release notes (#18947)
  • .drone: Remove unmaintained .drone file (#18832)
  • README.md: update CI badge (#18685)
  • README.md: update features (#18777)

And 38 minor changes.

Bug fixes (44)

  • pkg/tinyusb: add usb_board_reset support (#19006)
  • boards/common/blxxxpill: Fix pin conflicts in periph_conf (#18785)
  • boards/common/nrf52: fix timer config (#18948)
  • boards/dwm1001: use lis2dh12_i2c instead of lis2dh12_spi (#18857)
  • bootloaders/riotboot_dfu: fixes including sys/usb/usbus/dfu (#18964)
  • core/mbox: fix race condition (#18955)
  • cpu/atmega_common/periph_timer: fix spurious IRQs (#18978)
  • cpu/efm32/pm: fix blocking EM1 (#18775)
  • cpu/efm32/timer_series2: fix interaction with pm_layered (#18814)
  • cpu/esp32: set bootloader XTAL frequency configuration to automatic (#18829)
  • cpu/esp{32,8266}/periph_timer: allow changing callback or freq (#18971)
  • cpu/nrf5x/timer: fix high current consumption in powered off state (#18953)
  • cpu/nrf5x/uart: run STOPTX task after finished tx (#18954)
  • cpu/nrf5x_common/periph_timer: fix spurious IRQs (#18970)
  • cpu/qn908x: use bitarithm_test_and_clear() & fix cb (#18989)
  • cpu/stm32/periph_timer: fix spurious IRQs and race conditions (#18969)
  • cpu/stm32: fix periph_dma (#18711)
  • cpu/stm32: fix RAM_LEN for F427, F429, F437, F439 models (#18919)
  • dist/tools/usb-serial: fix exception on missing entries (#19011)
  • drivers/atwinc15x0: don't disable interrupts (#18800)
  • drivers/ethos: Fix off-by-one bug (#18823)
  • drivers/slipdev: fix off-by-one error in _recv() (#18826)
  • drivers/usbdev_synopsys_dwc2: small fixes (#18759)
  • Fix kconfig mismatch breaking nightlies (#18805)
  • gnrc: Fix unused function error when using LLVM (#18852)
  • gnrc_sixlowpan: Various hardening fixes (#18817)
  • makefiles/libc/picolibc.mk: fix compilation with modern binutils (#18893)
  • nanocoap_sock: don't store entire sock in coap_block_request_t (#18827)
  • nanocoap_sock: only re-transmit CON messages (#18819)
  • pkg/nimble: signal LINK_UP on initialisation (#18979)
  • pkg/tinyusb: fix the reset of the USB connection for STM32 boards
    without internal D+ pullup (#18992)
  • pkg/utensor: fix uninitialized variable (#18862)
  • sam0_common: use size_t len for I2C transfers (fixes #19008) (#19009)
  • sys/clif: Fixing out of bounds read under certain conditions (#18744)
  • sys/net/gnrc/pkt: fix gnrc_pkt_delete() (#18874)
  • sys/net/grnc/netreg: avoid freeing wild pointers (#18951)
  • sys/stdio_uart: fix undefined behavior (#18774)
  • sys/uri_parser: fixing potential out of bounds read when consuming
    ports (#19016)
  • sys/ztimer: model ztimer_periph_lptimer for Kconfig (#18783)
  • test-on-iotlab: several fixes to make it runnable again (#18722)
  • tests/congure_abe: reset node before starting terminal (#18769)
  • tests/pkg_utensor: increase main threads stack size (#18952)
  • tests/shell: fix failure on samr21-xpro (#18891)
  • tests: set netdev event_callback before calling init (#18745)
  • tools/backport_pr: finally fix running outside of repo's root (#18881)

Known issues

Network related issues (52)

  • 6lo: RIOT does not receive packets from Linux when short_addr is set (#11033)
  • [gcoap-dtls] Posting a message yields a stack overflow on the
    samr21-xpro with ECC (#18292)
  • Address registration handling inappropriate (#15867)
  • app/netdev: application stops working after receiving frames with
    assertion or completely without error (#8271)
  • at86rf2xx: Dead lock when sending while receiving (#8242)
  • CC2538 RF overlapping PIN usage (#8779)
  • cpu/esp8266: Tracking open problems of esp_wifi netdev driver (#10861)
  • dist/tools/sliptty/start_network.sh: IPv6 connectivity is broken on
    PC (#14689)
  • driver/mrf24j40: blocks shell input with auto_init_gnrc_netif (#12943)
  • drivers/at86rf215: Incorrect channel number set for subGHz (#15906)
  • DTLS examples cannot send message to localhost (#14315)
  • Emcute cannot create a double-byte name (#12642)
  • ethernet: Missing multicast addr assignment (#13493)
  • ethos: fails to respond to first message. (#11988)
  • ethos: Unable to choose global source address. (#13745)
  • ethos: Unable to handle fragmented IPv6 packets from Linux kernel (#12264)
  • examples/cord_ep: Dead lock when (re-)registering in callback
    function (#12884)
  • examples/gnrc_border_router: esp_wifi crashes on disconnect (#14679)
  • Forwarding a packet back to its link layer source should not be
    allowed (#5051)
  • gcoap example request on tap I/F fails with NIB issue (#8199)
  • gcoap: Suspected crosstalk between requests (possible NULL call) (#14390)
  • gnrc ipv6: multicast packets are not dispatched to the upper layers (#5230)
  • gnrc_border_router stops routing after a while (#16398)
  • gnrc_icmpv6_echo: flood-pinging another node leads to leaks in own
    packet buffer (#12565)
  • gnrc_ipv6: Multicast is not forwarded if routing node listens to the
    address (#4527)
  • gnrc_netif_pktq leaks memory (#17924)
  • gnrc_rpl: missing bounds checks in _parse_options (#16085)
  • gnrc_rpl: nib route not updated when topology / DODAG changes (#17327)
  • gnrc_rpl: takes unusually long time to start routing packets (#19147)
  • gnrc_sock_udp: Possible Race condition on copy in application buffer (#10389)
  • gnrc_tcp: gnrc_tcp_recv() never generates -ECONNABORTED (#17896)
  • gomach: Resetting netif with cli doesn't return (#10370)
  • ieee802154_submac: IPv6 fragmentation broken (#16998)
  • LoRaWan node ISR stack overflowed (#14962)
  • lwip_sock_tcp / sock_async: received events before calling
    sock_accept() are lost due to race condition. (#16303)
  • Missing drop implementations in netdev_driver_t::recv (#10410)
  • Neighbor Discovery not working after router reboot when using SLAAC (#11038)
  • netdev_ieee802154: Mismatch between radio ll address and in memory
    address (#10380)
  • nrf52: Not able to add global or ULA address to interface (#13280)
  • nrfmin: communication not possible after multicast ping with no
    interval (#11405)
  • ping6 is failing when testing with cc2538dk (#13997)
  • pkg/tinydtls: auxiliary data API does not work for async sockets (#16054)
  • Possible memory leak in RIOT/build/pkg/ndn-riot/app.c (#15638)
  • Riot-os freezes with lwip + enc28j60 + stm32L4 (#13088)
  • samr30 xpro doesn't seem to use its radio ok (#12761)
  • scan-build errors found during 2019.07 testing (#11852)
  • send data with UDP at 10HZ, the program die (#11860)
  • stale border router does not get replaced (#12210)
  • test/lwip: enabling both, IPv4 and IPv6, results in unexpected
    behavior (#18097)
  • tests/lwip: does not compile for IPv4 on 6LoWPAN-based boards. (#17162)
  • two nodes livelock sending neighbor solicitations back and forth
    between each other (#16670)
  • xbee: setting PAN ID sometimes fails (#10338)

Timer related issues (9)

  • cpu/native: timer interrupt issue (#6442)
  • misc issues with tests/trickle (#9052)
  • MSP430: periph_timer clock config wrong (#8251)
  • periph/timer: timer_set() underflow safety check (tracking issue) (#13072)
  • periph_timer: systematic proportional error in timer_set (#10545)
  • saml21 system time vs rtc (#10523)
  • Sleep mode for Arduino (#13321)
  • stm32_common/periph/rtc: current implementation broken/poor accuracy (#8746)
  • sys/newlib: gettimeofday() returns time since boot, not current wall
    time. (#9187)

Drivers related issues (16)

  • adc is not a ADC-Driver but a analog pin abstraction (#14424)
  • at86rf2xx: Simultaneous use of different transceiver types is not
    supported (#4876)
  • cpu/msp430: GPIO driver doesn't work properly (#9419)
  • driver/hts221: Temperature and Humidity readings incorrect (#12445)
  • examples/dtls-wolfssl not working on pba-d-01-kw2x (#13527)
  • fail to send data to can bus (#12371)
  • floats and doubles being used all over the place. (#12045)
  • mdt_erase success, but vfs_format resets board (esp32-heltec-
    lora32-v2) (#14506)
  • periph/spi: Switching between CPOL=0,1 problems on Kinetis with
    software CS (#6567)
  • periph: GPIO drivers are not thread safe (#4866)
  • Potential security and safety race conditions on attached devices (#13444)
  • PWM: Single-phase initialization creates flicker (#15121)
  • STM32: SPI clock not returning to idle state and generating
    additional clock cycles (#11104)
  • TCP client cannot send read only data (#16541)
  • tests/periph_flashpage: unexpected behavior on nucleo-l4r5zi (#17599)
  • Two bugs may lead to NULL dereference. (#15006)

Native related issues (4)

  • examples/micropython: floating point exception while testing on
    native (#15870)
  • native getchar is blocking RIOT (#16834)
  • native not float safe (#495)
  • native: tlsf: early malloc will lead to a crash (#5796)

Other platforms related issues (15)

  • Failing tests on FE310 (Hifive1b) (#13086)
  • [TRACKING] Fixes for automatic tests of ESP32 boards. (#12763)
  • boards/hifive1: flashing issue (#13104)
  • Cannot use LLVM with Cortex-M boards (#13390)
  • cpu/sam0: flashpage write / read cycle produces different results
    depending on code layout in flash (#14929)
  • cpu/stm32f1: CPU hangs after wake-up from STOP power mode (#13918)
  • esp32-wroom-32: tests/netstats_l2 failing sometimes (#14237)
  • gcoap/esp8266: Stack overflow with gcoap example (#13606)
  • MPU doesn't work on cortex-m0+ (#14822)
  • newlib-nano: Printf formatting does not work properly for some
    numeric types (#1891)
  • periph_timer: Test coverage & broken on STM32F767ZI (#15072)
  • riscv: ISR stack is too small for ENABLE_DEBUG in core files (#16395)
  • stm32152re: hardfault when DBGMCU_CR_DBG* bits are set and branch
    after __WFI() (#14015)
  • stm32f7: Large performance difference between stm32f746 and stm32f767 (#14728)
  • sys/riotboot/flashwrite: unaligned write when skipping
    RIOTBOOT_MAGIC on stm32wb (#15917)

Build system related issues (11)

  • buildtest uses wrong build directory (#9742)
  • make -j flash fails due to missing make dependencies or make flash-only rebuilds the .elf (#16385)
  • Build dependencies - processing order issues (#9913)
  • build: info-build doesn't work with boards without port set (#15185)
  • BUILD_IN_DOCKER ignores USEMODULE (#14504)
  • dist/tools/cppcheck/cppchck.sh: errors when running with Cppcheck
    1.89 (#12771)
  • doxygen: riot.css modified by 'make doc' (#8122)
  • macros: RIOT_FILE_RELATIVE printing wrong file name for headers (#4053)
  • make: ccache leads to differing binaries (#14264)
  • make: use of immediate value of variables before they have their
    final value (#8913)
  • Tracking: remove harmful use of export in make and immediate
    evaluation (#10850)

Other issues (44)

  • [TRACKING] sys/shell refactoring. (#12105)
  • _NVIC_SystemReset stuck in infinite loop when calling pm_reboot
    through shell after flashing with J-Link (#13044)
  • make term no longer works with JLinkExe v6.94 (#16022)
  • Basic test for periph/rtt introduced in #15431 is incorrect (#15940)
  • boards/esp32-wroom-32: tests/mtd_raw flakey (#16130)
  • Bug: openocd 0.10.0-6 Ubuntu dies while debugging with -rtos auto (#13285)
  • Can't build relic with benchmarks or tests (#12897)
  • CC2538DK board docs: broken links (#12889)
  • cpu/stm32/periph/rtc overflow error (#16574)
  • cpu/stm32: some tests are failing on CM33 (l5, u5) (#17439)
  • doc/LOSTANDFOUND: not rendered as expected (#17063)
  • edbg: long lines flooded over serial become garbled (#14548)
  • examples / tests: LoRa tests fail on platforms that don't support
    LoRa (#14520)
  • feather-m0: make flash reports "device unsupported" (#17722)
  • flashing issue on frdm-k64f (#15903)
  • frdm-k22f failing tests/periph_flashpage (#17057)
  • I2C not working under RIOT with U8G2 pkg (#16381)
  • ieee802154_security: Nonce is reused after reboot (#16844)
  • lwip: drivers/at86rf2xx/at86rf2xx_netdev.c invalid state during TCP
    disconnect (#17209)
  • lwip: invalid state transition on ieee802154_submac users (#17208)
  • Making the newlib thread-safe (#4488)
  • mcuboot: flashes but no output (#17524)
  • nanocoap: incomplete response to /.well-known/core request (#10731)
  • newlib-nano: Printf formatting does not work properly with "PRIu8" (#17083)
  • Order of auto_init functions (#13541)
  • pkg/tinydtls: Multiple issues (#16108)
  • pkg_libhydrogen tests fail / update libhydrogen (#18508)
  • Potential race condition in compile_and_test_for_board.py (#12621)
  • RIOT is saw-toothing in energy consumption (even when idling) (#5009)
  • riotboot/nrf52840dk: flashing slot1 with JLINK fails (#14576)
  • riotboot: ECC faults (eg. in STM32L5 or STM32WB) not handled
    gracefully (#17874)
  • rust-gcoap example is incompatible with littlefs2 (#17817)
  • SPI access in LoRa-e5 and im880b? (#19025)
  • stdio_ethos: infinite shell loop (#17972)
  • sys/riotboot: documentation issues (#11243)
  • sys/stdio_uart: dropped data when received at once (#10639)
  • tests/cpp11_*: failing on i-nucleo-lrwan1 (#14578)
  • tests/lwip target board for python test is hardcoded to native (#6533)
  • tests/periph_flashpage: failing on stm32l475ve (#17280)
  • tests/pkg_libhydrogen: test fails on master for the samr21-xpro with
    LLVM (#15066)
  • tests/test_tools: test fails while testing on samr21-xpro/iotlab-m3 (#15888)
  • tests: broken with stdio_rtt if auto_init is disabled (#13120)
  • tests: some tests don't work with newlib lock functions. (#12732)
  • Use of multiple CAN bus on compatible boards (#14801)

There are 151 known issues in this release

Fixed Issues since the last release (2022.10)

  • Race condition in SUIT around threads terminating (#19195)
  • socket_zep: fragmentation broken if destination is multicast /
    ACK_REQ not set (#19117)
  • sam0_sdhc: SDXC cards are not detected / handled properly (#18458)
  • semtech_loramac_init blocking (#17907)
  • tests/thread_float: crashes on avr-rss2 (#16908)
  • esp8266 precompiled bootloaders don't support partitions past 1MB (#16402)
  • SIGFPE on native architecture when printing double floats on Ubuntu
    21.04 (#16282)
  • I found stm32 DMA periph driver bugs! when I tested stm32l431rc
    board. (#16242)
  • pyterm on stdio_cdc_acm stops working after a few seconds (#16077)
  • Unclear how Router Solicitations are (or should be) handled (#15926)
  • examples/ccn-lite: floating point exception while testing on native (#15878)
  • usb-serial/list-ttys.sh: Broken when a debugger offers multiple
    serial ports (#15814)
  • tests/pkg_tensorflow-lite: tests randomly failing on nrf52dk and
    esp32-wroom-32 (#13133)

13 fixed issues since last release (2022.10)

Acknowledgements

We would like to thank all companies that provided us with hardware for porting
and testing RIOT-OS. Further thanks go to companies and institutions that
directly sponsored development time. And finally, big thanks to all of you
contributing in so many different ways to make RIOT worthwhile!

More information

http://www.riot-os.org

Matrix and Forum

  • Join the RIOT Matrix room at: #riot-os:matrix.org
  • Join the RIOT Forum at: forum.riot-os.org

License

  • The code developed by the RIOT community is licensed under the GNU Lesser
    General Public License (LGPL) version 2.1 as published by the Free Software
    Foundation.
  • Some external sources and packages are published under a separate license.

All code files contain licensing information.

Assets 2
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