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+Release notes for 4.0 (kirkstone)
+---------------------------------
+
+This is a Long Term Support release, published in April 2022, and supported at least for two years (April 2024).
+
+New Features / Enhancements in 4.0
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Linux kernel 5.15, glibc 2.35 and ~300 other recipe upgrades
+
+- Reproducibility: this release fixes the reproducibility issues with ``rust-llvm`` and
+  ``golang``. Recipes in OpenEmbedded-Core are now fully reproducible. Functionality
+  previously in the optional "reproducible" class has been merged into the base class.
+
+- Network access is now disabled by default for tasks other than where it is expected to ensure build integrity (where host kernel supports it)
+
+- The Yocto Project now allows you to reuse the Shared State cache from
+  its autobuilder. If the network connection between our server and your
+  machine is faster than you would build recipes from source, you can
+  try to speed up your builds by using such Shared State and Hash
+  Equivalence by setting::
+
+     BB_SIGNATURE_HANDLER = "OEEquivHash"
+     BB_HASHSERVE = "auto"
+     BB_HASHSERVE_UPSTREAM = "typhoon.yocto.io:8687"
+     SSTATE_MIRRORS ?= "file://.* https://sstate.yoctoproject.org/&YOCTO_DOC_VERSION;/PATH;downloadfilename=PATH"
+
+- The Python package build process is now based on `wheels <https://pythonwheels.com/>`__
+  in line with the upstream direction.
+
+- New :ref:`overlayfs <ref-classes-overlayfs>` and
+  :ref:`overlayfs-etc <ref-classes-overlayfs-etc>` classes and
+  ``overlayroot`` support in the initramfs framework to make it easier to
+  overlay read-only filesystems (for example) with
+  `OverlayFS <https://en.wikipedia.org/wiki/OverlayFS>`__.
+
+- Inclusive language adjustments to some variable names - see the
+  :ref:`4.0 migration guide <migration-4.0-inclusive-language>` for details.
+  
+- New recipes:
+
+   - ``buildtools-docs-tarball``
+   - ``libptytty``
+   - ``libxcvt``
+   - ``lua``
+   - ``nghttp2``
+   - ``python3-alabaster``
+   - ``python3-asn1crypto``
+   - ``python3-babel``
+   - ``python3-bcrypt``
+   - ``python3-certifi``
+   - ``python3-cffi``
+   - ``python3-chardet``
+   - ``python3-cryptography``
+   - ``python3-cryptography-vectors``
+   - ``python3-dtschema``
+   - ``python3-flit-core``
+   - ``python3-idna``
+   - ``python3-imagesize``
+   - ``python3-installer``
+   - ``python3-iso8601``
+   - ``python3-jsonpointer``
+   - ``python3-jsonschema``
+   - ``python3-ndg-httpsclient``
+   - ``python3-ply``
+   - ``python3-poetry-core``
+   - ``python3-pretend``
+   - ``python3-psutil``
+   - ``python3-pyasn1``
+   - ``python3-pycparser``
+   - ``python3-pyopenssl``
+   - ``python3-pyrsistent``
+   - ``python3-pysocks``
+   - ``python3-pytest-runner``
+   - ``python3-pytest-subtests``
+   - ``python3-pytz``
+   - ``python3-requests``
+   - ``python3-rfc3339-validator``
+   - ``python3-rfc3986-validator``
+   - ``python3-rfc3987``
+   - ``python3-ruamel-yaml``
+   - ``python3-semantic-version``
+   - ``python3-setuptools-rust-native``
+   - ``python3-snowballstemmer``
+   - ``python3-sphinx``
+   - ``python3-sphinxcontrib-applehelp``
+   - ``python3-sphinxcontrib-devhelp``
+   - ``python3-sphinxcontrib-htmlhelp``
+   - ``python3-sphinxcontrib-jsmath``
+   - ``python3-sphinxcontrib-qthelp``
+   - ``python3-sphinxcontrib-serializinghtml``
+   - ``python3-sphinx-rtd-theme``
+   - ``python3-strict-rfc3339``
+   - ``python3-tomli``
+   - ``python3-typing-extensions``
+   - ``python3-urllib3``
+   - ``python3-vcversioner``
+   - ``python3-webcolors``
+   - ``python3-wheel``
+   - ``repo``
+   - ``seatd``
+
+- Extended recipes to ``native``: ``wayland``, ``wayland-protocols``
+
+- Shared state (sstate) improvements:
+
+   - Switched to `ZStandard (zstd) <https://en.wikipedia.org/wiki/Zstd>`__ instead
+     of Gzip, for better performance.
+   - Allow validation of sstate signatures against a list of keys
+   - Improved error messages and exception handling
+
+- BitBake enhancements:
+
+   - Fetcher enhancements:
+   
+      - New :ref:`bitbake:bitbake-user-manual/bitbake-user-manual-fetching:crate fetcher (\`\`crate://\`\`)` for Rust packages
+      - Added striplevel support to unpack
+      - git: Add a warning asking users to set a branch in git urls
+      - git: Allow git fetcher to support subdir param
+      - git: canonicalize ids in generated tarballs
+      - git: stop generated tarballs from leaking info
+      - npm: Put all downloaded files in the npm2 directory
+      - npmsw: Add support for duplicate dependencies without url
+      - npmsw: Add support for github prefix in npm shrinkwrap version
+      - ssh: now supports checkstatus, allows : in URLs (both required for use with sstate) and no longer requires username
+      - wget: add redirectauth parameter
+      - wget: add 30s timeout for checkstatus calls
+   
+   - Show warnings for append/prepend/remove operators combined with +=/.=
+   - Add bb.warnonce() and bb.erroronce() log methods
+   - Improved setscene task display
+   - Show elapsed time also for tasks with progress bars
+   - Improved cleanup on forced shutdown (either because of errors or Ctrl+C)
+   - contrib: Add Dockerfile for building PR service container
+   - Change file format of siginfo files to use zstd compressed json
+   - Display active tasks when printing keep-alive message to help debugging
+
+-  Architecture-specific enhancements:
+
+   - ARM:
+  
+      - tune-cortexa72: Enable the crc extension by default for cortexa72
+      - qemuarm64: Add tiny ktype to qemuarm64 bsp
+      - armv9a/tune: Add the support for the Neoverse N2 core
+      - arch-armv8-5a.inc: Add tune include for armv8.5a
+      - grub-efi: Add xen_boot support when 'xen' is in DISTRO_FEATURES for aarch64
+      - tune-cortexa73: Introduce cortexa73-crypto tune
+      - libacpi: Build libacpi also for 'aarch64' machines
+      - core-image-tiny-initramfs: Mark recipe as 32 bit ARM compatible
+
+   - PowerPC:
+
+      - weston-init: Use pixman rendering for qemuppc64
+      - rust: add support for big endian 64-bit PowerPC
+      - rust: Add snapshot checksums for powerpc64le
+
+   - RISC-V:
+
+      - libunwind: Enable for rv64
+      - systemtap: Enable for riscv64
+      - linux-yocto-dev: add qemuriscv32
+      - packagegroup-core-tools-profile: Enable systemtap for riscv64
+      - qemuriscv: Use virtio-tablet-pci for mouse
+  
+   - x86:
+
+      - kernel-yocto: conditionally enable stack protection checking on x86-64
+
+-  Kernel-related enhancements:
+
+   - Allow initramfs to be built from a separate multiconfig
+   - Make kernel-base recommend kernel-image, not depend (allowing images containing kernel modules without kernel image)
+   - linux-yocto: split vtpm for more granular inclusion
+   - linux-yocto: cfg/debug: add configs for kcsan
+   - linux-yocto: cfg: add kcov feature fragment
+   - linux-yocto: export pkgconfig variables to devshell
+   - linux-yocto-dev: use versioned branch as default
+   - New ``KERNEL_DEBUG_TIMESTAMPS`` variable (to replace removed ``BUILD_REPRODUCIBLE_BINARIES`` for the kernel)
+   - Introduce python3-dtschema-wrapper in preparation for mandatory schema checking on dtb files in 5.16
+   - Allow disabling kernel artifact symlink creation
+   - Allow changing default .bin kernel artifact extension
+
+- FIT image related enhancements:
+
+   - New ``FIT_SUPPORTED_INITRAMFS_FSTYPES`` variable to allow extending initramfs image types to look for
+   - New ``FIT_CONF_PREFIX`` variable to allow overriding FIT configuration prefix
+   - Use 'bbnote' for better logging
+
+- New :term:`PACKAGECONFIG` options in ``curl``, ``dtc``, ``epiphany``, ``git``, ``git``, ``gstreamer1.0-plugins-bad``, ``linux-yocto-dev``, ``kmod``, ``mesa``, ``piglit``, ``qemu``, ``rpm``, ``systemd``, ``webkitgtk``, ``weston-init``
+- ptest enhancements in ``findutils``, ``lttng-tools``, ``openssl``, ``gawk``, ``strace``, ``lttng-tools``, ``valgrind``, ``perl``, ``libxml-parser-perl``, ``openssh``, ``python3-cryptography``, ``popt``
+
+- Sysroot dependencies have been further optimised
+- Significant effort to upstream / rationalise patches across a variety of recipes
+- Allow the creation of block devices on top of UBI volumes
+- archiver: new ARCHIVER_MODE[compression] to set tarball compression, and switch default to xz
+- yocto-check-layer: add ability to perform tests from a global bbclass
+- yocto-check-layer: improved README checks
+- cve-check: add json output format
+- cve-check: add coverage statistics on recipes with/without CVEs
+- Added mirrors for kernel sources and uninative binaries on kernel.org 
+- glibc and binutils recipes now use shallow mirror tarballs for faster fetching
+- When patching fails, show more information on the fatal error
+
+-  wic Image Creator enhancements:
+
+  - Support rootdev identified by partition label
+  - rawcopy: Add support for packed images
+  - partition: Support valueless keys in sourceparams
+
+- QA check enhancements:
+
+   - Allow treating license issues as errors
+   - Added a check that Upstream-Status patch tag is present and correctly formed
+   - Added a check for directories that are expected to be empty
+   - Ensure addition of patch-fuzz retriggers do_qa_patch
+   - Added a sanity check for allarch packagegroups
+
+- create-spdx class improvements:
+
+   - Get SPDX-License-Identifier from source files
+   - Generate manifest also for SDKs
+   - New SPDX_ORG variable to allow changing the Organization field value
+   - Added packageSupplier field
+   - Added create_annotation function
+
+- devtool add / recipetool create enhancements:
+
+   - Extend curl detection when creating recipes
+   - Handle GitLab URLs like we do GitHub
+   - Recognize more standard license text variants
+   - Separate licenses with & operator
+   - Detect more known licenses in Python code
+   - Move license md5sums data into CSV files
+   - npm: Use README as license fallback
+   
+- SDK-related enhancements:
+
+   - Extended recipes to ``nativesdk``: ``cargo``, ``librsvg``, ``libstd-rs``, ``libva``, ``python3-docutil``, ``python3-packaging``
+   - Enabled nativesdk recipes to find a correct version of the rust cross compiler
+   - Support creating per-toolchain cmake file in SDK
+
+- Rust enhancements:
+   
+   - New python_setuptools3_rust class to enable building python extensions in Rust
+   - classes/meson: Add optional rust definitions
+
+- QEMU / runqemu enhancements:
+
+   - qemu: Add knob for enabling PMDK pmem support
+   - qemu: add tpm string section to qemu acpi table
+   - qemu: Build on musl targets
+   - runqemu: support rootfs mounted ro
+   - runqemu: add :term:`DEPLOY_DIR_IMAGE` replacement in QB_OPT_APPEND
+   - runqemu: Allow auto-detection of the correct graphics options
+
+- Capped ``cpu_count()`` (used to set parallelisation defaults) to 64 since any higher usually hurts parallelisation
+- Adjust some GL-using recipes so that they only require virtual/egl
+- package_rpm: use zstd instead of xz
+- npm: new ``EXTRA_OENPM`` variable (to set node-gyp variables for example)
+- npm: new ``NPM_NODEDIR`` variable
+- perl: Enable threading
+- u-boot: Convert ${UBOOT_ENV}.cmd into ${UBOOT_ENV}.scr
+- u-boot: Split do_configure logic into separate file
+- go.bbclass: Allow adding parameters to go ldflags
+- go: log build id computations
+- scons: support out-of-tree builds
+- scripts: Add a conversion script to use SPDX license names
+- scripts: Add convert-variable-renames script for inclusive language variable renaming
+- binutils-cross-canadian: enable gold for mingw
+- grub-efi: Add option to include all available modules
+- bitbake.conf: allow wayland distro feature through for native/SDK builds
+- weston-init: Pass --continue-without-input when launching weston
+- weston: wrapper for weston modules argument
+- weston: Add a knob to control simple clients
+- uninative: Add version to uninative tarball name
+- volatile-binds: SELinux and overlayfs extensions in mount-copybind
+- gtk-icon-cache: Allow using gtk4
+- kmod: Add an exclude directive to depmod
+- os-release: add os-release-initrd package for use in systemd-based initramfs images
+- gstreamer1.0-plugins-base: add support for graphene
+- gpg-sign: Add parameters to gpg signature function
+- package_manager: sign DEB package feeds
+- zstd: add libzstd package
+- libical: build gobject and vala introspection
+- dhcpcd: add option to set DBDIR location
+- rpcbind: install rpcbind.conf
+- mdadm: install mdcheck
+- boost: add json lib
+- libxkbcommon: allow building of API documentation
+- libxkbcommon: split libraries and xkbcli into separate packages
+- systemd: move systemd shared library into its own package
+- systemd: Minimize udev package size if DISTRO_FEATURES doen't contain sysvinit
+
+Known Issues in 4.0
+~~~~~~~~~~~~~~~~~~~
+
+- ``make`` version 4.2.1 is known to be buggy on non-Ubuntu systems. If this ``make``
+  version is detected on host distributions other than Ubuntu at build start time,
+  then a warning will be displayed.
+
+Recipe License changes in 4.0
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following corrections have been made to the LICENSE values set by recipes:
+
+* cmake: add BSD-1-Clause & MIT & BSD-2-Clause to LICENSE due to additional vendored libraries in native/target context
+* gettext: extend LICENSE conditional upon PACKAGECONFIG (due to vendored libraries)
+* gstreamer1.0: update licenses of all modules to LGPL-2.1-or-later (with some exceptions that are GPL-2.0-or-later)
+* gstreamer1.0-plugins-bad/ugly: use the GPL-2.0-or-later only when it is in use
+* kern-tools-native: add missing MIT license due to Kconfiglib
+* libcap: add pam_cap license to LIC_FILES_CHKSUM if pam is enabled
+* libidn2: add Unicode-DFS-2016 license
+* libsdl2: add BSD-2-Clause to LICENSE due to default yuv2rgb and hidapi inclusion
+* libx11-compose-data: update LICENSE to "MIT & MIT-style & BSD-1-Clause & HPND & HPND-sell-variant" to better reflect reality
+* libx11: update LICENSE to "MIT & MIT-style & BSD-1-Clause & HPND & HPND-sell-variant" to better reflect reality
+* libxshmfence: correct LICENSE - MIT -> HPND
+* newlib: add BSD-3-Clause to LICENSE
+* python3-idna: correct LICENSE - Unicode -> Unicode-TOU
+* python3-pip: add "Apache-2.0 & MPL-2.0 & LGPL-2.1-only & BSD-3-Clause & PSF-2.0 & BSD-2-Clause" to LICENSE due to vendored libraries
+
+Other license-related notes:
+
+- The ambiguous "BSD" license has been removed from the ``common-licenses`` directory.
+  Each recipe that fetches or builds BSD-licensed code should specify the proper
+  version of the BSD license in its :term:`LICENSE` value.
+
+- :term:`LICENSE` definitions now have to use `SPDX identifiers <https://spdx.org/licenses/>`__.
+  A :oe_git:`convert-spdx-licenses.py </openembedded-core/tree/scripts/contrib/convert-spdx-licenses.py>`
+  script can be used to update your recipes.
+
+
+
+Security Fixes in 4.0
+~~~~~~~~~~~~~~~~~~~~~
+
+- binutils: :cve:`2021-42574`, :cve:`2021-45078`
+- curl: :cve:`2021-22945`, :cve:`2021-22946`, :cve:`2021-22947`
+- epiphany: :cve:`2021-45085`, :cve:`2021-45086`, :cve:`2021-45087`, :cve:`2021-45088`
+- expat: :cve:`2021-45960`, :cve:`2021-46143`, :cve:`2022-22822`, :cve:`2022-22823`, :cve:`2022-22824`, :cve:`2022-22825`, :cve:`2022-22826`, :cve:`2022-22827`, :cve:`2022-23852`, :cve:`2022-23990`, :cve:`2022-25235`, :cve:`2022-25236`, :cve:`2022-25313`, :cve:`2022-25314`, :cve:`2022-25315`
+- ffmpeg: :cve:`2021-38114`
+- gcc: :cve:`2021-35465`, :cve:`2021-42574`, :cve:`2021-46195`, :cve:`2022-24765`
+- glibc: :cve:`2021-3998`, :cve:`2021-3999`, :cve:`2021-43396`, :cve:`2022-23218`, :cve:`2022-23219`
+- gmp: :cve:`2021-43618`
+- go: :cve:`2021-41771` and :cve:`2021-41772`
+- grub2: :cve:`2021-3981`
+- gzip: :cve:`2022-1271`
+- libarchive : :cve:`2021-31566`, :cve:`2021-36976`
+- libxml2: :cve:`2022-23308`
+- libxslt: :cve:`2021-30560`
+- lighttpd: :cve:`2022-22707`
+- linux-yocto/5.10: amdgpu: :cve:`2021-42327`
+- lua: :cve:`2021-43396`
+- openssl: :cve:`2021-4044`, :cve:`2022-0778`
+- qemu: :cve:`2022-1050`, :cve:`2022-26353`, :cve:`2022-26354`
+- rpm: :cve:`2021-3521`
+- seatd: :cve:`2022-25643`
+- speex: :cve:`2020-23903`
+- squashfs-tools: :cve:`2021-41072`
+- systemd: :cve:`2021-4034`
+- tiff: :cve:`2022-0561`, :cve:`2022-0562`, :cve:`2022-0865`, :cve:`2022-0891`, :cve:`2022-0907`, :cve:`2022-0908`, :cve:`2022-0909`, :cve:`2022-0924`, :cve:`2022-1056`, :cve:`2022-22844`
+- unzip: :cve:`2021-4217`
+- vim: :cve:`2021-3796`, :cve:`2021-3872`, :cve:`2021-3875`, :cve:`2021-3927`, :cve:`2021-3928`, :cve:`2021-3968`, :cve:`2021-3973`, :cve:`2021-4187`, :cve:`2022-0128`, :cve:`2022-0156`, :cve:`2022-0158`, :cve:`2022-0261`, :cve:`2022-0318`, :cve:`2022-0319`, :cve:`2022-0554`, :cve:`2022-0696`, :cve:`2022-0714`, :cve:`2022-0729`, :cve:`2022-0943`
+- virglrenderer: :cve:`2022-0135`, :cve:`2022-0175`
+- webkitgtk: :cve:`2022-22589`, :cve:`2022-22590`, :cve:`2022-22592`
+- xz: :cve:`2022-1271`
+- zlib: :cve:`2018-25032`
+
+
+
+Recipe Upgrades in 4.0
+~~~~~~~~~~~~~~~~~~~~~~
+
+- acpica: upgrade 20210730 -> 20211217
+- acpid: upgrade 2.0.32 -> 2.0.33
+- adwaita-icon-theme: update 3.34/38 -> 41.0
+- alsa-ucm-conf: upgrade 1.2.6.2 -> 1.2.6.3
+- alsa: upgrade 1.2.5 -> 1.2.6
+- apt: upgrade 2.2.4 -> 2.4.3
+- asciidoc: upgrade 9.1.0 -> 10.0.0
+- atk: upgrade 2.36.0 -> 2.38.0
+- at-spi2-core: upgrade 2.40.3 -> 2.42.0
+- at: update 3.2.2 -> 3.2.5
+- autoconf-archive: upgrade 2021.02.19 -> 2022.02.11
+- automake: update 1.16.3 -> 1.16.5
+- bash: upgrade 5.1.8 -> 5.1.16
+- bind: upgrade 9.16.20 -> 9.18.1
+- binutils: Bump to latest 2.38 release branch
+- bison: upgrade 3.7.6 -> 3.8.2
+- bluez5: upgrade 5.61 -> 5.64
+- boost: update 1.77.0 -> 1.78.0
+- btrfs-tools: upgrade 5.13.1 -> 5.16.2
+- buildtools-installer: Update to use 3.4
+- busybox: 1.34.0 -> 1.35.0
+- ca-certificates: update 20210119 -> 20211016
+- cantarell-fonts: update 0.301 -> 0.303.1
+- ccache: upgrade 4.4 -> 4.6
+- cmake: update 3.21.1 -> 3.22.3
+- connman: update 1.40 -> 1.41
+- coreutils: update 8.32 -> 9.0
+- cracklib: update 2.9.5 -> 2.9.7
+- createrepo-c: upgrade 0.17.4 -> 0.19.0
+- cronie: upgrade 1.5.7 -> 1.6.0
+- cups: update 2.3.3op2 -> 2.4.1
+- curl: update 7.78.0 -> 7.82.0
+- dbus: upgrade 1.12.20 -> 1.14.0
+- debianutils: update 4.11.2 -> 5.7
+- dhcpcd: upgrade 9.4.0 -> 9.4.1
+- diffoscope: upgrade 181 -> 208
+- dnf: upgrade 4.8.0 -> 4.11.1
+- dpkg: update 1.20.9 ->  1.21.4
+- e2fsprogs: upgrade 1.46.4 -> 1.46.5
+- ed: upgrade 1.17 -> 1.18
+- efivar: update 37 -> 38
+- elfutils: update 0.185 -> 0.186
+- ell: upgrade 0.43 -> 0.49
+- enchant2: upgrade 2.3.1 -> 2.3.2
+- epiphany: update 40.3 -> 42.0
+- erofs-utils: update 1.3 -> 1.4
+- ethtool: update to 5.16
+- expat: upgrade 2.4.1 -> 2.4.7
+- ffmpeg: update 4.4 -> 5.0
+- file: upgrade 5.40 -> 5.41
+- findutils: upgrade 4.8.0 -> 4.9.0
+- flac: upgrade 1.3.3 -> 1.3.4
+- freetype: upgrade 2.11.0 -> 2.11.1
+- fribidi: upgrade 1.0.10 -> 1.0.11
+- gawk: update 5.1.0 -> 5.1.1
+- gcompat: Update to latest
+- gdbm: upgrade 1.19 -> 1.23
+- gdb: Upgrade to 11.2
+- ghostscript: update 9.54.0 -> 9.55.0
+- gi-docgen: upgrade 2021.7 -> 2022.1
+- git: update 2.33.0 -> 2.35.2
+- glib-2.0: update 2.68.4 -> 2.72.0
+- glibc: Upgrade to 2.35
+- glib-networking: update 2.68.2 -> 2.72.0
+- glslang: update 11.5.0 -> 11.8.0
+- gnu-config: update to latest revision
+- gnupg: update 2.3.1 -> 2.3.4
+- gnutls: update 3.7.2 -> 3.7.4
+- gobject-introspection: upgrade 1.68.0 -> 1.72.0
+- go-helloworld: update to latest revision
+- go: update 1.16.7 -> 1.17.8
+- gpgme: upgrade 1.16.0 -> 1.17.1
+- gsettings-desktop-schemas: upgrade 40.0 -> 42.0
+- gst-devtools: 1.18.4 -> 1.20.1
+- gst-examples: 1.18.4 -> 1.18.6
+- gstreamer1.0: 1.18.4 -> 1.20.1
+- gstreamer1.0-libav: 1.18.4 -> 1.20.1
+- gstreamer1.0-omx: 1.18.4 -> 1.20.1
+- gstreamer1.0-plugins-bad: 1.18.4  1.20.1
+- gstreamer1.0-plugins-base: 1.18.4 -> 1.20.1
+- gstreamer1.0-plugins-good: 1.18.4 -> 1.20.1
+- gstreamer1.0-plugins-ugly: 1.18.4 -> 1.20.1
+- gstreamer1.0-python: 1.18.4 -> 1.20.1
+- gstreamer1.0-rtsp-server: 1.18.4 -> 1.20.1
+- gstreamer1.0-vaapi: 1.18.4 -> 1.20.1
+- gtk+3: upgrade 3.24.30 -> 3.24.33
+- gzip: upgrade 1.10 -> 1.12
+- harfbuzz: upgrade 2.9.0 -> 4.0.1
+- hdparm: upgrade 9.62 -> 9.63
+- help2man: upgrade 1.48.4 -> 1.49.1
+- icu: update 69.1 -> 70.1
+- ifupdown: upgrade 0.8.36 -> 0.8.37
+- inetutils: update 2.1 -> 2.2
+- init-system-helpers: upgrade 1.60 -> 1.62
+- iproute2: update to 5.17.0
+- iputils: update 20210722 to 20211215
+- iso-codes: upgrade 4.6.0 -> 4.9.0
+- itstool: update 2.0.6 -> 2.0.7
+- iw: upgrade 5.9 -> 5.16
+- json-glib: upgrade 1.6.4 -> 1.6.6
+- kea: update 1.8.2 -> 2.0.2
+- kexec-tools: update 2.0.22 -> 2.0.23
+- less: upgrade 590 -> 600
+- libarchive: upgrade 3.5.1 -> 3.6.1
+- libatomic-ops: upgrade 7.6.10 -> 7.6.12
+- libbsd: upgrade 0.11.3 -> 0.11.5
+- libcap: update 2.51 -> 2.63
+- libcgroup: upgrade 2.0 -> 2.0.1
+- libcomps: upgrade 0.1.17 -> 0.1.18
+- libconvert-asn1-perl: upgrade 0.31 -> 0.33
+- libdazzle: upgrade 3.40.0 -> 3.44.0
+- libdnf: update 0.63.1 -> 0.66.0
+- libdrm: upgrade 2.4.107 -> 2.4.110
+- libedit: upgrade 20210714-3.1 -> 20210910-3.1
+- liberation-fonts: update 2.1.4 -> 2.1.5
+- libevdev: upgrade 1.11.0 -> 1.12.1
+- libexif: update 0.6.22 -> 0.6.24
+- libgit2: update 1.1.1 -> 1.4.2
+- libgpg-error: update 1.42 -> 1.44
+- libhandy: update 1.2.3 -> 1.5.0
+- libical: upgrade 3.0.10 -> 3.0.14
+- libinput: update to 1.19.3
+- libjitterentropy: update 3.1.0 -> 3.4.0
+- libjpeg-turbo: upgrade 2.1.1 -> 2.1.3
+- libmd: upgrade 1.0.3 -> 1.0.4
+- libmicrohttpd: upgrade 0.9.73 -> 0.9.75
+- libmodulemd: upgrade 2.13.0 -> 2.14.0
+- libpam: update 1.5.1 -> 1.5.2
+- libpcre2: upgrade 10.37 -> 10.39
+- libpipeline: upgrade 1.5.3 -> 1.5.5
+- librepo: upgrade 1.14.1 -> 1.14.2
+- librsvg: update 2.40.21 -> 2.52.7
+- libsamplerate0: update 0.1.9 -> 0.2.2
+- libsdl2: update 2.0.16 -> 2.0.20
+- libseccomp: update to 2.5.3
+- libsecret: upgrade 0.20.4 -> 0.20.5
+- libsndfile1: bump to version 1.0.31
+- libsolv: upgrade 0.7.19 -> 0.7.22
+- libsoup-2.4: upgrade 2.72.0 -> 2.74.2
+- libsoup: add a recipe for 3.0.5
+- libssh2: update 1.9.0 -> 1.10.0
+- libtasn1: upgrade 4.17.0 -> 4.18.0
+- libtool: Upgrade 2.4.6 -> 2.4.7
+- libucontext: Upgrade to 1.2 release
+- libunistring: update 0.9.10 -> 1.0
+- libunwind: upgrade 1.5.0 -> 1.6.2
+- liburcu: upgrade 0.13.0 -> 0.13.1
+- libusb1: upgrade 1.0.24 -> 1.0.25
+- libuv: update 1.42.0 -> 1.44.1
+- libva: update 2.12.0 -> 2.14.0
+- libva-utils: upgrade 2.13.0 -> 2.14.0
+- libwebp: 1.2.1 -> 1.2.2
+- libwpe: upgrade 1.10.1 -> 1.12.0
+- libx11: update to 1.7.3.1
+- libxcrypt: upgrade 4.4.26 -> 4.4.27
+- libxcrypt-compat: upgrade 4.4.26 -> 4.4.27
+- libxi: update to 1.8
+- libxkbcommon: update to 1.4.0
+- libxml2: update to 2.9.13
+- libxslt: update to v1.1.35
+- lighttpd: update 1.4.59 -> 1.4.64
+- linux-firmware: upgrade 20210818 -> 20220310
+- linux-libc-headers: update to v5.16
+- linux-yocto/5.10: update to v5.10.109
+- linux-yocto/5.15: introduce recipes (v5.15.32)
+- linux-yocto-dev: update to v5.18+
+- linux-yocto-rt/5.10: update to -rt61
+- linux-yocto-rt/5.15: update to -rt34
+- llvm: update 12.0.1 -> 13.0.1
+- logrotate: update 3.18.1 -> 3.19.0
+- lsof: update 4.91 -> 4.94.0
+- ltp: update 20210927 -> 20220121
+- ltp: Update to 20210927
+- lttng-modules: update devupstream to latest 2.13
+- lttng-modules: update to 2.13.3
+- lttng-tools: upgrade 2.13.0 -> 2.13.4
+- lttng-ust: upgrade 2.13.0 -> 2.13.2
+- lua: update 5.3.6 -> 5.4.4
+- lzip: upgrade 1.22 -> 1.23
+- man-db: upgrade 2.9.4 -> 2.10.2
+- man-pages: update to 5.13
+- mdadm: update 4.1 -> 4.2
+- mesa: upgrade 21.2.1 -> 22.0.0
+- meson: update 0.58.1 -> 0.61.3
+- minicom: Upgrade 2.7.1 -> 2.8
+- mmc-utils: upgrade to latest revision
+- mobile-broadband-provider-info: upgrade 20210805 -> 20220315
+- mpg123: upgrade 1.28.2 -> 1.29.3
+- msmtp: upgrade 1.8.15 -> 1.8.20
+- mtd-utils: upgrade 2.1.3 -> 2.1.4
+- mtools: upgrade 4.0.35 -> 4.0.38
+- musl: Update to latest master
+- ncurses: update 6.2 -> 6.3
+- newlib: Upgrade 4.1.0 -> 4.2.0
+- nfs-utils: upgrade 2.5.4 -> 2.6.1
+- nghttp2: upgrade 1.45.1 -> 1.47.0
+- ofono: upgrade 1.32 -> 1.34
+- opensbi: Upgrade to 1.0
+- openssh: upgrade 8.7p1 -> 8.9
+- openssl: update 1.1.1l -> 3.0.2
+- opkg: upgrade 0.4.5 -> 0.5.0
+- opkg-utils: upgrade 0.4.5 -> 0.5.0
+- ovmf: update 202105 -> 202202
+- p11-kit: update 0.24.0 -> 0.24.1
+- pango: upgrade 1.48.9 -> 1.50.4
+- patchelf: upgrade 0.13 -> 0.14.5
+- perl-cross: update 1.3.6 -> 1.3.7
+- perl: update 5.34.0 -> 5.34.1
+- piglit: upgrade to latest revision
+- pigz: upgrade 2.6 -> 2.7
+- pinentry: update 1.1.1 -> 1.2.0
+- pkgconfig: Update to latest
+- psplash: upgrade to latest revision
+- puzzles: upgrade to latest revision
+- python3-asn1crypto: upgrade 1.4.0 -> 1.5.1
+- python3-attrs: upgrade 21.2.0 -> 21.4.0
+- python3-cryptography: Upgrade to 36.0.2
+- python3-cryptography-vectors: upgrade to 36.0.2
+- python3-cython: upgrade 0.29.24 -> 0.29.28
+- python3-dbusmock: update to 0.27.3
+- python3-docutils: upgrade 0.17.1 0.18.1
+- python3-dtschema: upgrade 2021.10 -> 2022.1
+- python3-gitdb: upgrade 4.0.7 -> 4.0.9
+- python3-git: update to 3.1.27
+- python3-hypothesis: upgrade 6.15.0 -> 6.39.5
+- python3-imagesize: upgrade 1.2.0 -> 1.3.0
+- python3-importlib-metadata: upgrade 4.6.4 -> 4.11.3
+- python3-jinja2: upgrade 3.0.1 -> 3.1.1
+- python3-jsonschema: upgrade 3.2.0 -> 4.4.0
+- python3-libarchive-c: upgrade 3.1 -> 4.0
+- python3-magic: upgrade 0.4.24 -> 0.4.25
+- python3-mako: upgrade 1.1.5 -> 1.1.6
+- python3-markdown: upgrade 3.3.4 -> 3.3.6
+- python3-markupsafe: upgrade 2.0.1 -> 2.1.1
+- python3-more-itertools: upgrade 8.8.0 -> 8.12.0
+- python3-numpy: upgrade 1.21.2 -> 1.22.3
+- python3-packaging: upgrade 21.0 -> 21.3
+- python3-pathlib2: upgrade 2.3.6 -> 2.3.7
+- python3-pbr: upgrade 5.6.0 -> 5.8.1
+- python3-pip: update 21.2.4 -> 22.0.3
+- python3-pycairo: upgrade 1.20.1 -> 1.21.0
+- python3-pycryptodome: upgrade 3.10.1 -> 3.14.1
+- python3-pyelftools: upgrade 0.27 -> 0.28
+- python3-pygments: upgrade 2.10.0 -> 2.11.2
+- python3-pygobject: upgrade 3.40.1 -> 3.42.0
+- python3-pyparsing: update to 3.0.7
+- python3-pyrsistent: upgrade 0.18.0 -> 0.18.1
+- python3-pytest-runner: upgrade 5.3.1 -> 6.0.0
+- python3-pytest-subtests: upgrade 0.6.0 -> 0.7.0
+- python3-pytest: upgrade 6.2.4 -> 7.1.1
+- python3-pytz: upgrade 2021.3 -> 2022.1
+- python3-py: upgrade 1.10.0 -> 1.11.0
+- python3-pyyaml: upgrade 5.4.1 -> 6.0
+- python3-ruamel-yaml: upgrade 0.17.16 -> 0.17.21
+- python3-scons: upgrade 4.2.0 -> 4.3.0
+- python3-setuptools-scm: upgrade 6.0.1 -> 6.4.2
+- python3-setuptools: update to 59.5.0
+- python3-smmap: update to 5.0.0
+- python3-tomli: upgrade 1.2.1 -> 2.0.1
+- python3: update to 3.10.3
+- python3-urllib3: upgrade 1.26.8 -> 1.26.9
+- python3-zipp: upgrade 3.5.0 -> 3.7.0
+- qemu: update 6.0.0 -> 6.2.0
+- quilt: upgrade 0.66 -> 0.67
+- re2c: upgrade 2.2 -> 3.0
+- readline: upgrade 8.1 -> 8.1.2
+- repo: upgrade 2.17.3 -> 2.22
+- resolvconf: update 1.87 -> 1.91
+- rng-tools: upgrade 6.14 -> 6.15
+- rpcsvc-proto: upgrade 1.4.2 -> 1.4.3
+- rpm: update 4.16.1.3 -> 4.17.0
+- rt-tests: update 2.1 -> 2.3
+- ruby: update 3.0.2 -> 3.1.1
+- rust: update 1.54.0 -> 1.59.0
+- rxvt-unicode: upgrade 9.26 -> 9.30
+- screen: upgrade 4.8.0 -> 4.9.0
+- shaderc: update 2021.1 -> 2022.1
+- shadow: upgrade 4.9 -> 4.11.1
+- socat: upgrade 1.7.4.1 -> 1.7.4.3
+- spirv-headers: bump to b42ba6 revision
+- spirv-tools: update 2021.2 -> 2022.1
+- sqlite3: upgrade 3.36.0 -> 3.38.2
+- strace: update 5.14 -> 5.16
+- stress-ng: upgrade 0.13.00 -> 0.13.12
+- sudo: update 1.9.7p2 -> 1.9.10
+- sysklogd: upgrade 2.2.3 -> 2.3.0
+- sysstat: upgrade 12.4.3 -> 12.4.5
+- systemd: update 249.3 -> 250.4
+- systemtap: upgrade 4.5 -> 4.6
+- sysvinit: upgrade 2.99 -> 3.01
+- tzdata: update to 2022a
+- u-boot: upgrade 2021.07 -> 2022.01
+- uninative: Upgrade to 3.6 with gcc 12 support
+- util-linux: update 2.37.2 -> 2.37.4
+- vala: upgrade 0.52.5 -> 0.56.0
+- valgrind: update 3.17.0 -> 3.18.1
+- vim: upgrade to 8.2 patch 4681
+- vte: upgrade 0.64.2 -> 0.66.2
+- vulkan-headers: upgrade 1.2.182 -> 1.2.191
+- vulkan-loader: upgrade 1.2.182 -> 1.2.198.1
+- vulkan-samples: update to latest revision
+- vulkan-tools: upgrade 1.2.182 -> 1.2.191
+- vulkan: update 1.2.191.0 -> 1.3.204.1
+- waffle: update 1.6.1 -> 1.7.0
+- wayland-protocols: upgrade 1.21 -> 1.25
+- wayland: upgrade 1.19.0 -> 1.20.0
+- webkitgtk: upgrade 2.34.0 -> 2.36.0
+- weston: upgrade 9.0.0 -> 10.0.0
+- wget: update 1.21.1 -> 1.21.3
+- wireless-regdb: upgrade 2021.07.14 -> 2022.02.18
+- wpa-supplicant: update 2.9 -> 2.10
+- wpebackend-fdo: upgrade 1.10.0 -> 1.12.0
+- xauth: upgrade 1.1 -> 1.1.1
+- xf86-input-libinput: update to 1.2.1
+- xf86-video-intel: update to latest commit
+- xkeyboard-config: update to 2.35.1
+- xorgproto: update to 2021.5
+- xserver-xorg: update 1.20.13 -> 21.1.3
+- xwayland: update 21.1.2 -> 22.1.0
+- xxhash: upgrade 0.8.0 -> 0.8.1
+- zstd: update 1.5.0 -> 1.5.2
+
+
+
+Contributors to 4.0
+~~~~~~~~~~~~~~~~~~~
+
+Thanks to the following people who contributed to this release:
+
+- Abongwa Amahnui Bonalais
+- Adriaan Schmidt
+- Adrian Freihofer
+- Ahmad Fatoum
+- Ahmed Hossam
+- Ahsan Hussain
+- Alejandro Hernandez Samaniego
+- Alessio Igor Bogani
+- Alexander Kanavin
+- Alexandre Belloni
+- Alexandru Ardelean
+- Alexey Brodkin
+- Alex Stewart
+- Andreas Müller
+- Andrei Gherzan
+- Andrej Valek
+- Andres Beltran
+- Andrew Jeffery
+- Andrey Zhizhikin
+- Anton Mikanovich
+- Anuj Mittal
+- Bill Pittman
+- Bruce Ashfield
+- Caner Altinbasak
+- Carlos Rafael Giani
+- Chaitanya Vadrevu
+- Changhyeok Bae
+- Changqing Li
+- Chen Qi
+- Christian Eggers
+- Claudius Heine
+- Claus Stovgaard
+- Daiane Angolini
+- Daniel Ammann
+- Daniel Gomez
+- Daniel McGregor
+- Daniel Müller
+- Daniel Wagenknecht
+- David Joyner
+- David Reyna
+- Denys Dmytriyenko
+- Dhruva Gole
+- Diego Sueiro
+- Dmitry Baryshkov
+- Ferry Toth
+- Florian Amstutz
+- Henry Kleynhans
+- He Zhe
+- Hongxu Jia
+- Hsia-Jun(Randy) Li
+- Ian Ray
+- Jacob Kroon
+- Jagadeesh Krishnanjanappa
+- Jasper Orschulko
+- Jim Wilson
+- Joel Winarske
+- Joe Slater
+- Jon Mason
+- Jose Quaresma
+- Joshua Watt
+- Justin Bronder
+- Kai Kang
+- Kamil Dziezyk
+- Kevin Hao
+- Khairul Rohaizzat Jamaluddin
+- Khem Raj
+- Kiran Surendran
+- Konrad Weihmann
+- Kory Maincent
+- Lee Chee Yang
+- Leif Middelschulte
+- Lei Maohui
+- Li Wang
+- Liwei Song
+- Luca Boccassi
+- Lukasz Majewski
+- Luna Gräfje
+- Manuel Leonhardt
+- Marek Vasut
+- Mark Hatle
+- Markus Niebel
+- Markus Volk
+- Marta Rybczynska
+- Martin Beeger
+- Martin Jansa
+- Matthias Klein
+- Matt Madison
+- Maximilian Blenk
+- Max Krummenacher
+- Michael Halstead
+- Michael Olbrich
+- Michael Opdenacker
+- Mike Crowe
+- Ming Liu
+- Mingli Yu
+- Minjae Kim
+- Nicholas Sielicki
+- Olaf Mandel
+- Oleh Matiusha
+- Oleksandr Kravchuk
+- Oleksandr Ocheretnyi
+- Oleksandr Suvorov
+- Oleksiy Obitotskyy
+- Otavio Salvador
+- Pablo Saavedra
+- Paul Barker
+- Paul Eggleton
+- Pavel Zhukov
+- Peter Hoyes
+- Peter Kjellerstedt
+- Petr Vorel
+- Pgowda
+- Quentin Schulz
+- Ralph Siemsen
+- Randy Li
+- Randy MacLeod
+- Rasmus Villemoes
+- Ricardo Salveti
+- Richard Neill
+- Richard Purdie
+- Robert Joslyn
+- Robert P. J. Day
+- Robert Yang
+- Ross Burton
+- Rudolf J Streif
+- Sakib Sajal
+- Samuli Piippo
+- Saul Wold
+- Scott Murray
+- Sean Anderson
+- Simone Weiss
+- Simon Kuhnle
+- S. Lockwood-Childs
+- Stefan Herbrechtsmeier
+- Steve Sakoman
+- Sundeep KOKKONDA
+- Tamizharasan Kumar
+- Tean Cunningham
+- Teoh Jay Shen
+- Thomas Perrot
+- Tim Orling
+- Tobias Kaufmann
+- Tom Hochstein
+- Tony McDowell
+- Trevor Gamblin
+- Ulrich Ölmann
+- Valerii Chernous
+- Vivien Didelot
+- Vyacheslav Yurkov
+- Wang Mingyu
+- Xavier Berger
+- Yi Zhao
+- Yongxin Liu
+- Yureka
+- Zev Weiss
+- Zheng Ruoqin
+- Zoltán Böszörményi
+- Zygmunt Krynicki
+
+
+
+Repositories / Downloads for 4.0
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+poky
+
+-  Repository Location: https://git.yoctoproject.org/git/poky
+-  Branch: :yocto_git:`kirkstone </poky/log/?h=kirkstone>`
+-  Tag: :yocto_git:`yocto-4.0 </poky/tag/?h=yocto-4.0>`
+-  Git Revision: :yocto_git:`00cfdde791a0176c134f31e5a09eff725e75b905 </poky/commit/?id=00cfdde791a0176c134f31e5a09eff725e75b905>`
+-  Release Artefact: poky-00cfdde791a0176c134f31e5a09eff725e75b905
+-  sha: 4cedb491b7bf0d015768c61690f30d7d73f4266252d6fba907bba97eac83648c
+-  Download Locations:
+   http://downloads.yoctoproject.org/releases/yocto/yocto-4.0/poky-00cfdde791a0176c134f31e5a09eff725e75b905.tar.bz2
+   http://mirrors.kernel.org/yocto/yocto/yocto-4.0/poky-00cfdde791a0176c134f31e5a09eff725e75b905.tar.bz2
+
+openembedded-core
+
+-  Repository Location: :oe_git:`/openembedded-core`
+-  Branch: :oe_git:`kirkstone </openembedded-core/log/?h=kirkstone>`
+-  Tag: :oe_git:`yocto-4.0 </openembedded-core/tag/?h=yocto-4.0>`
+-  Git Revision: :oe_git:`92fcb6570bddd0c5717d8cfdf38ecf3e44942b0f </openembedded-core/commit/?id=92fcb6570bddd0c5717d8cfdf38ecf3e44942b0f>`
+-  Release Artefact: oecore-92fcb6570bddd0c5717d8cfdf38ecf3e44942b0f
+-  sha: c042629752543a10b0384b2076b1ee8742fa5e8112aef7b00b3621f8387a51c6
+-  Download Locations:
+   http://downloads.yoctoproject.org/releases/yocto/yocto-4.0/oecore-92fcb6570bddd0c5717d8cfdf38ecf3e44942b0f.tar.bz2
+   http://mirrors.kernel.org/yocto/yocto/yocto-4.0/oecore-92fcb6570bddd0c5717d8cfdf38ecf3e44942b0f.tar.bz2
+
+meta-mingw
+
+-  Repository Location: https://git.yoctoproject.org/git/meta-mingw
+-  Branch: :yocto_git:`kirkstone </meta-mingw/log/?h=kirkstone>`
+-  Tag: :yocto_git:`yocto-4.0 </meta-mingw/tag/?h=yocto-4.0>`
+-  Git Revision: :yocto_git:`a90614a6498c3345704e9611f2842eb933dc51c1 </meta-mingw/commit/?id=a90614a6498c3345704e9611f2842eb933dc51c1>`
+-  Release Artefact: meta-mingw-a90614a6498c3345704e9611f2842eb933dc51c1
+-  sha: 49f9900bfbbc1c68136f8115b314e95d0b7f6be75edf36a75d9bcd1cca7c6302
+-  Download Locations:
+   http://downloads.yoctoproject.org/releases/yocto/yocto-4.0/meta-mingw-a90614a6498c3345704e9611f2842eb933dc51c1.tar.bz2
+   http://mirrors.kernel.org/yocto/yocto/yocto-4.0/meta-mingw-a90614a6498c3345704e9611f2842eb933dc51c1.tar.bz2
+
+meta-gplv2
+
+-  Repository Location: https://git.yoctoproject.org/git/meta-gplv2
+-  Branch: :yocto_git:`kirkstone </meta-gplv2/log/?h=kirkstone>`
+-  Tag: :yocto_git:`yocto-4.0 </meta-gplv2/tag/?h=yocto-4.0>`
+-  Git Revision: :yocto_git:`d2f8b5cdb285b72a4ed93450f6703ca27aa42e8a </meta-mingw/commit/?id=d2f8b5cdb285b72a4ed93450f6703ca27aa42e8a>`
+-  Release Artefact: meta-gplv2-d2f8b5cdb285b72a4ed93450f6703ca27aa42e8a
+-  sha: c386f59f8a672747dc3d0be1d4234b6039273d0e57933eb87caa20f56b9cca6d
+-  Download Locations:
+   http://downloads.yoctoproject.org/releases/yocto/yocto-4.0/meta-gplv2-d2f8b5cdb285b72a4ed93450f6703ca27aa42e8a.tar.bz2
+   http://mirrors.kernel.org/yocto/yocto/yocto-4.0/meta-gplv2-d2f8b5cdb285b72a4ed93450f6703ca27aa42e8a.tar.bz2
+
+bitbake
+
+-  Repository Location: :oe_git:`/bitbake`
+-  Branch: :oe_git:`2.0 </bitbake/log/?h=2.0>`
+-  Tag: :oe_git:`yocto-4.0 </bitbake/tag/?h=yocto-4.0>`
+-  Git Revision: :oe_git:`c212b0f3b542efa19f15782421196b7f4b64b0b9 </bitbake/commit/?id=c212b0f3b542efa19f15782421196b7f4b64b0b9>`
+-  Release Artefact: bitbake-c212b0f3b542efa19f15782421196b7f4b64b0b9
+-  sha: 6872095c7d7be5d791ef3e18b6bab2d1e0e237962f003d2b00dc7bd6fb6d2ef7
+-  Download Locations:
+   http://downloads.yoctoproject.org/releases/yocto/yocto-4.0/bitbake-c212b0f3b542efa19f15782421196b7f4b64b0b9.tar.bz2
+   http://mirrors.kernel.org/yocto/yocto/yocto-4.0/bitbake-c212b0f3b542efa19f15782421196b7f4b64b0b9.tar.bz2
+
+yocto-docs
+
+-  Repository Location: https://git.yoctoproject.org/git/yocto-docs
+-  Branch: :yocto_git:`kirkstone </yocto-docs/log/?h=kirkstone>`
+-  Tag: :yocto_git:`yocto-4.0 </yocto-docs/tag/?h=yocto-4.0>`
+-  Git Revision: :yocto_git:`a6f571ad5b087385cad8765ed455c4b4eaeebca6 </yocto-docs/commit/?id=a6f571ad5b087385cad8765ed455c4b4eaeebca6>`
+