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zephyr: Upgrade to Zephyr v4.2.0. #17765

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zephyr: Upgrade to Zephyr v4.2.0. #17765

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4 changes: 2 additions & 2 deletions docs/zephyr/tutorial/repl.rst
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Expand Up @@ -31,8 +31,8 @@ With your serial program open (PuTTY, screen, picocom, etc) you may see a
blank screen with a flashing cursor. Press Enter (or reset the board) and
you should be presented with the following text::

*** Booting Zephyr OS build v4.0.0 ***
MicroPython v1.24.0-preview.179.g5b85b24bd on 2024-08-05; zephyr-frdm_k64f with mk64f12
*** Booting Zephyr OS build v4.2.0 ***
MicroPython v1.26.0-preview.451.gebc9525c9 on 2025-07-25; zephyr-frdm_k64f with mk64f12
Type "help()" for more information.
>>>

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8 changes: 4 additions & 4 deletions ports/zephyr/README.md
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Expand Up @@ -5,8 +5,8 @@ This is a work-in-progress port of MicroPython to Zephyr RTOS
(http://zephyrproject.org).

This port tries to support all Zephyr versions supported upstream,
i.e. currently v3.7 (LTS), v4.0 and the development branch. The CI is
setup to use the latest version, i.e. v4.0.
i.e. currently v3.7 (LTS), v4.2 and the development branch. The CI is
setup to use the latest version, i.e. v4.2.

All boards supported by Zephyr (with standard level of features
support, like UART console) should work with MicroPython (but not all
Expand Down Expand Up @@ -43,13 +43,13 @@ setup is correct.
If you already have Zephyr installed but are having issues building the
MicroPython port then try installing the correct version of Zephyr via:

$ west init zephyrproject -m https://github.com/zephyrproject-rtos/zephyr --mr v4.0.0
$ west init zephyrproject -m https://github.com/zephyrproject-rtos/zephyr --mr v4.2.0

Alternatively, you don't have to redo the Zephyr installation to just
switch from master to a tagged release, you can instead do:

$ cd zephyrproject/zephyr
$ git checkout v4.0.0
$ git checkout v4.2.0
$ west update

With Zephyr installed you may then need to configure your environment,
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6 changes: 3 additions & 3 deletions tools/ci.sh
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Expand Up @@ -879,9 +879,9 @@ function ci_windows_build {
########################################################################################
# ports/zephyr

ZEPHYR_DOCKER_VERSION=v0.27.4
ZEPHYR_SDK_VERSION=0.17.0
ZEPHYR_VERSION=v4.0.0
ZEPHYR_DOCKER_VERSION=v0.28.1
ZEPHYR_SDK_VERSION=0.17.2
ZEPHYR_VERSION=v4.2.0

function ci_zephyr_setup {
IMAGE=ghcr.io/zephyrproject-rtos/ci:${ZEPHYR_DOCKER_VERSION}
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