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.. _zephyr_release_notes:
Release Notes
#############
Zephyr project is provided as source code and build scripts for different
target architectures and configurations, and not as a binary image. Updated
versions of the Zephyr project are released approximately every three-months.
All Zephyr project source code is maintained in a `GitHub repository`_.
For Zephyr versions up to 1.13, you can either download source as a tar.gz file
(see the bottom of the `GitHub tagged releases`_ page corresponding to each
release), or clone the GitHub repository.
With the introduction of the :ref:`west` tool after the release of Zephyr 1.13,
it is no longer recommended to download or clone the source code manually.
Instead we recommend you follow the instructions in :ref:`get_the_code` to do
so with the help of west.
The project's technical documentation is also tagged to correspond with a
specific release and can be found at https://docs.zephyrproject.org/.
.. toctree::
:maxdepth: 1
release-notes-1.13
release-notes-1.12
release-notes-1.11
release-notes-1.10
release-notes-1.9
release-notes-1.8
release-notes-1.7
release-notes-1.6
release-notes-1.5
.. _`GitHub repository`: https://github.com/zephyrproject-rtos/zephyr
.. _`GitHub tagged releases`: https://github.com/zephyrproject-rtos/zephyr/tags