1.26.0

This is a feature release, primarily addressing future compatibility changes for
the next nRF-Connect SDK release.

📈 Added

• Zephyr:

  • Add support for the ESP32 chip on Zephyr, adding to the existing support for
    ESP32-S3 and ESP32 C series chips.

  • Add support for building the Memfault SDK on the native_sim board. Note
    that Memfault does not support reboot tracking or coredumps on this target,
    but other features are supported.

🛠️ Changed

• General:

  • Add a MEMFAULT_ENABLE_WARNING(warning) macro complementing the existing
    MEMFAULT_DISABLE_WARNING(warning) macro. This macro is only implemented
    for GCC + Clang.

• Zephyr:

  • Remove the External Module logic, used to support multiple Zephyr versions,
    and instead use the normal Zephyr module Kconfig path specifier. There
    should be no user-facing changes from this change. It addresses an issue
    with Kconfig symbol linting.

  • In the Zephyr QEMU sample app, add
    the --param=min-pagesize=0x1000 compiler option, which will catch
    dereferences to low memory addresses. This is only for static analysis
    purposes and does not affect any behavior.

• ESP-IDF:

  • The heartbeat metrics timer is now enabled by default when
    CONFIG_MEMFAULT_DEEP_SLEEP_SUPPORT=y. Version 1.25.0, which added deep
    sleep support, had disabled the normal heartbeat metrics timer by default.
    The default behavior can be overridden with the Kconfig option
    CONFIG_MEMFAULT_METRICS_HEARTBEAT_TIMER_ENABLE.

• nRF-Connect SDK:

  • Replace use of LTE_LC_ON_CFUN with NRF_MODEM_LIB_ON_CFUN for nRF-Connect
    SDK v2.8.0+. This deprecated API is scheduled to be removed in the next
    nRF-Connect SDK release.