Global _coap_request_ctx::local: Use local_udp instead
Global _coap_request_ctx::remote: Use remote_udp instead
Global coap_build_reply (coap_pkt_t *pkt, unsigned code, uint8_t *rbuf, unsigned rlen, unsigned max_data_len): Use coap_builder_init_reply instead.
Global CONFIG_EFM32_XTIMER_USE_LETIMER: This option is deprecated and should be replaced by CONFIG_EFM32_ZTIMER_USE_LETIMER.
Global gcoap_request_memo_get_hdr (const gcoap_request_memo_t *memo): Use gcoap_request_memo_get_buf instead
Global NETDEV_EVENT_TX_COMPLETE_DATA_PENDING: Issue an NETDEV_EVENT_TX_COMPLETE event instead and pass the data pending info in netdev_driver_t::confirm_send via the info parameter
Global NETDEV_EVENT_TX_MEDIUM_BUSY: Issue an NETDEV_EVENT_TX_COMPLETE event instead and return -EBUSY in netdev_driver_t::confirm_send.
Global NETDEV_EVENT_TX_NOACK: Issue an NETDEV_EVENT_TX_COMPLETE event instead and return -EHOSTUNREACH in netdev_driver_t::confirm_send. Via the info parameter additional details about the error can be passed
Global pio_irq_source_t: Use the PIO_INTR_*_BITS definitions from the Pico SDK instead, e.g. PIO_INTR_SM0_BITS for PIO_IRQ_SM_0 and PIO_IRQ0_INTE_BITS for PIO_IRQ_ALL. Will be removed after the 2027.10 release.
Module pkg_edhoc_c: Warning: This module has not been maintained upstream since ~2022 and the Python package has been archived. Therefore, this package is deprecated and will be removed after the 2027.04 release.
Module pseudomodule_sema_deprecated: Will be removed after the 2021.07 release.
Global saul_class_to_str (const uint8_t class_id): Use saul_class_print or saul_class_write instead
Global sema_wait_timed (sema_t *sema, uint64_t timeout): Will be removed after release 2021.07
Global SPIClass::setBitOrder (uint8_t order): This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.
Global SPIClass::setClockDivider (uint8_t divider): This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.
Global SPIClass::setDataMode (uint8_t mode): This function is deprecated in the official Arduino API, so it is a good idea to not use it. In RIOT, this function is not yet scheduled for removal to allow using Arduino libraries using it.
Global stdin_isrpipe: Use stdio_rx_write or stdio_rx_write_one. This isrpipe will become private and should not be used directly. Using this isrpipe directly will not work with the stdio_notify module. Will be removed after the 2027.01 release.
Module sys_shell_commands_gnrc_udp: Use UDP shell command instead. will be removed after the 2026.10 release.
Module sys_xtimer: xtimer has been deprecated in favor of the ztimer high level timer abstraction layer
File thread.hpp: The C++ compat threading API has several API flaws, such as use of dynamic memory management, unconfigurable stack sizes, and runtime crashes on memory fragmentation. It also has not been maintained since 2015. Users should use the C API such as thread_create instead. This functionality will be dropped after the 2027.04 release.