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.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
Release 5.0 LTS (scarthgap)
===========================
Migration notes for 5.0 (scarthgap)
------------------------------------
This section provides migration information for moving to the Yocto
Project 5.0 Release (codename "scarthgap") from the prior release.
To migrate from an earlier LTS release, you **also** need to check all
the previous migration notes from your release to this new one:
- :doc:`/migration-guides/migration-4.3`
- :doc:`/migration-guides/migration-4.2`
- :doc:`/migration-guides/migration-4.1`
- :doc:`/migration-guides/migration-4.0`
- :doc:`/migration-guides/migration-3.4`
- :doc:`/migration-guides/migration-3.3`
- :doc:`/migration-guides/migration-3.2`
.. _migration-5.0-supported-kernel-versions:
Supported kernel versions
~~~~~~~~~~~~~~~~~~~~~~~~~
The :term:`OLDEST_KERNEL` setting is still "5.15" in this release, meaning that
out the box, older kernels are not supported. See :ref:`4.3 migration notes
<migration-4.3-supported-kernel-versions>` for details.
.. _migration-5.0-supported-distributions:
Supported distributions
~~~~~~~~~~~~~~~~~~~~~~~
Compared to the previous releases, running BitBake is supported on new
GNU/Linux distributions:
- Rocky 9
On the other hand, some earlier distributions are no longer supported:
- Fedora 37
- Ubuntu 22.10
- OpenSUSE Leap 15.3
See :ref:`all supported distributions <system-requirements-supported-distros>`.
.. _migration-5.0-go-changes:
Go language changes
~~~~~~~~~~~~~~~~~~~
The ``linkmode`` flag was dropped from ``GO_LDFLAGS`` for ``nativesdk`` and
``cross-canadian``. Also, dynamic linking was disabled for the whole set of
(previously) supported architectures in the ``goarch`` class.
.. _migration-5.0-systemd-changes:
systemd changes
~~~~~~~~~~~~~~~
Systemd's nss-resolve plugin is now supported and can be added via the
``nss-resolve`` :term:`PACKAGECONFIG` option , which is from now on required
(along with ``resolved``) by the ``systemd-resolved`` feature. Related to that
(i.e., Systemd's network name resolution), an option to use ``stub-resolv.conf``
was added as well.
.. _migration-5.0-recipe-changes:
Recipe changes
~~~~~~~~~~~~~~
- Runtime testing of ptest now fails if no test results are returned by
any given ptest.
.. _migration-5.0-deprecated-variables:
Deprecated variables
~~~~~~~~~~~~~~~~~~~~
No variables have been deprecated in this release.
.. _migration-5.0-removed-variables:
Removed variables
~~~~~~~~~~~~~~~~~
The following variables have been removed:
- ``DEPLOY_DIR_TAR``.
- ``PYTHON_PN``: Python 2 has been removed, leaving Python 3 as the sole
major version. Therefore, an abstraction to differentiate both versions is
no longer needed.
- ``oldincludedir``.
- ``USE_L10N``: previously deprecated, and now removed.
- ``CVE_SOCKET_TIMEOUT``.
.. _migration-5.0-removed-recipes:
Removed recipes
~~~~~~~~~~~~~~~
The following recipes have been removed in this release:
- ``libcroco``: deprecated and archived by the Gnome Project.
- ``linux-yocto``: version 6.1 (version 6.6 provided instead).
- ``zvariant``: fails to build with newer Rust.
- ``systemtap-uprobes``: obsolete.
.. _migration-5.0-removed-classes:
Removed classes
~~~~~~~~~~~~~~~
No classes have been removed in this release.
.. _migration-5.0-qemu-changes:
QEMU changes
~~~~~~~~~~~~
In ``tune-core2``, the cpu models ``n270`` and ``core2duo`` are no longer
passed to QEMU, since its documentation recommends not using them with ``-cpu``
option. Therefore, from now on, ``Nehalem`` model is used instead.
.. _migration-5.0-misc-changes:
Miscellaneous changes
~~~~~~~~~~~~~~~~~~~~~
- ``bitbake-whatchanged`` script was removed.
- ``ccache`` no longer supports FORTRAN.
|
