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@ -0,0 +1,195 @@
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% Libreboot 20230413 released!
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% Leah Rowe
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% 14 April 2023
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Introduction
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============
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Libreboot provides boot firmware for supported x86/ARM machines, starting a
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bootloader that then loads your operating system. It replaces proprietary
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BIOS/UEFI firmware on x86 machines, and provides an *improved* configuration
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on ARM-based chromebooks supported (U-Boot bootloader, instead of Google's
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depthcharge bootloader). On x86 machines, the GRUB and SeaBIOS coreboot
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payloads are officially supported, provided in varying configurations per
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machine. You can find the list of supported hardware in the Libreboot
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documentation.
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The last Libreboot release, version 20230319, was released on 19 March
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in 2023. *This* new release, Libreboot 20230413, is released today on
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April 13th, 2023.
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This is marked as a *testing* release, though it is *basically stable*.
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It is a bugfix release, relative to Libreboot 20230319. In addition to this,
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massive code cleanup has been performed on parts of the build system.
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The priority of this release has been build system fixes/improvements. For the
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time being, no more code changes will be made unless needed, in coreboot, for
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existing supported hardware; the focus is going to be on adding *more* boards
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to coreboot, to support more hardware. I've been on a spree, buying lots of
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mainboards that coreboot supports, that would be interesting in Libreboot.
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It is my intention that the next Libreboot release will be an *official*
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stable release!
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Build from source
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-----------------
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*This* release was build-tested on Debian *Sid*, as of 13 April 2023. Your
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mileage may vary, with other distros. Refer to Libreboot documentation.
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KCMA-D8 and KGPE-D16 wanted!
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----------------------------
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[ASUS KGPE-D16 and KCMA-D8 needed for testing!](kgpe-d16.md)
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These boards still haven't made it back to Libreboot, but I wish to re-add
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them in a future release. If you can give/loan me a fully assembled workstation
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with one (or both) of these, I would appreciate it. Please
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[get in touch](../contact.md)!
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Work done since last release
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============================
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For more detailed change logs, look at the Git repository. This is
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a summary of changes.
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Summary of changes:
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-------------------
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Zero code changes within coreboot on any boards, but the build system went
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through a mild overhaul:
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* Massive code cleanup of `util/nvmutil`, and improved error handling.
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* Insert scripts for post-release sandybridge/ivybridge/haswell ROMs are now
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much easier to use, and less error-prone.
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* A few problematic boards, for which ROM images were excluded in the previous
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release, have now been *removed* from the Libreboot build system. They will
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be re-added in a future release, and you can find a list of them in the
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detailed changelog below.
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* Haswell (T440/W541): `mrc.bin` insertion is now *correct*, on the blobutil
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script. In the previous release, Libreboot's build system inserted this at
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the wrong location in the ROM, after downloading it; coreboot's own build
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system does it correctly, and that is used when compiling, but post-release
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ROM images have it inserted with equivalent logic in the Libreboot build
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system, instead. - NOTE: libre raminit is also available, if you choose
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the ROM images with `t440p_12mb` in the filenames, whereas `t440pmrc_12mb`
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images need `mrc.bin` for raminit. More info about this is in the previous
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release.
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MRC W541/T440p ROM images re-added
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----------------------------------
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As alluded to and applied by the above text, T440p/W541 thinkpad images that
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use `mrc.bin` have been re-added. Libreboot supports experimental raminit on
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these boards, where the MRC file is not required, but it also provides ones
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that use it, so that users can choose which one they want.
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More information this is available, in the *previous*
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[Libreboot 20230319 release announcement](libreboot20230319.md).
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Detailed descriptions of changes
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--------------------------------
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Changelog:
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* `blobutil/inject`: Relative to the fix below (courtesy `shmalebx9`), the
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ROM image archives in releases now contain lists of SHA1 hashes, matching
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what each file should be when running `blobutil/inject`
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* `blobutil/inject`: It is now possible to insert MRC and neutered ME images,
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where required on specific mainboards, into *all* ROM images of a given
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tar archive, in addition to single ROM images. The patch for this is
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courtesy of Caleb La Grange (`shmalebx9` on libreboot IRC)
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* Removed daisy/peach chromebooks: The machines are believed to boot properly,
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with the coreboot and u-boot code being correct, but lbmk currently does not
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handle the BL1 bootloaders on these machines, and this was overlooked before;
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the images for these machines have also been deleted, from previous releases.
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These will be re-added in a future Libreboot release.
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* Removed veyron chromebooks for now: u-boot does not work at all on those
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boards (video issues), last known revision working on veyron was 2021.01 so
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a git-bisect can probably done. These boards will be re-added in a future
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Libreboot release.
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* `util/ich9utils`: Merged it back into lbmk, rather than keeping it as a
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separate repository. It is now directly part of the Libreboot build system,
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once again.
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* `util/nvmutil`: Major code cleanup; reduced SLOC count to 315 source lines,
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whereas it was 386 code lines in the previous release. The compiled binary
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sizes have been reduced by 7%, as tested with TCC on an x86\_64 host. This
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code size reduction is provided, *without* reducing any functionality.
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* `util/nvmutil`: Fixed faulty check for MAC address `00:00:00:00:00:00` - the
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total was being reset for each word, wrongly. This has been corrected.
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* `blobutil/download`: now supports extracting `me.bin` from LZMA archives, in
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addition to inno archives; in practise, lbmk still currently only supports
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machines where inno archives are extracted from, but experimental new ports
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exist outside of `master` that will be present in future releases.
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* `blobutil/download`: no longer hardcodes the `me.bin` path, when extracting
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from updates during auto-download. When compiling ROM images, lbmk now does
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this by bruteforce, automatically finding the correct location of the ME
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image inside vendor archives; this works well on inno/lzma archives.
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The script then runs `me_cleaner` as usual, inserting that into the ROM
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image - this same logic is also used when inserting into release ROMs.
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This is in preparation for *non-Lenovo* sandybridge, ivybridge and haswell
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machines being added in future releases, e.g. Dell and HP laptops that
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coreboot supports.
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* `blobutil/download`: heavily re-factored the logic, switching to top-down
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order of functions, split more operations into functions, generally made
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the script easier to read/work on.
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* `blobutil/inject`: use correct offset for insertion of `mrc.bin` (Haswell
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platform, e.g. ThinkPad T440p) - see remarks written below in this release
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announcement.
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* Removed mainboard: `d945gclf` - known to be problematic at boot. I have one,
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and I'm going to test it for re-entry in a future release.
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* Added missing dependency in Arch Linux dependencies installation script,
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patch courtesy of Andreas Hartmann.
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Hardware supported in this release
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==================================
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All of the following are believed to *boot*, but if you have any issues,
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please contact the Libreboot project. They are:
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Desktops (AMD, Intel, x86)
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-----------------------
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- [Gigabyte GA-G41M-ES2L motherboard](../docs/hardware/ga-g41m-es2l.md)
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- [Acer G43T-AM3](../docs/hardware/acer_g43t-am3.md)
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- [Intel D510MO and D410PT motherboards](../docs/hardware/d510mo.md)
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- [Apple iMac 5,2](../docs/hardware/imac52.md)
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### Laptops (Intel, x86)
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- ThinkPad X60 / X60S / X60 Tablet
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- ThinkPad T60 (with Intel GPU)
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- [Lenovo ThinkPad X200 / X200S / X200 Tablet](../docs/hardware/x200.md)
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- Lenovo ThinkPad X230
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- Lenovo ThinkPad X301
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- [Lenovo ThinkPad R400](../docs/hardware/r400.md)
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- [Lenovo ThinkPad T400 / T400S](../docs/hardware/t400.md)
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- [Lenovo ThinkPad T500](../docs/hardware/t500.md)
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- [Lenovo ThinkPad T530](../docs/install/ivy_has_common.md)
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- [Lenovo ThinkPad W500](../docs/hardware/t500.md)
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- [Lenovo ThinkPad R500](../docs/hardware/r500.md)
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- [Apple MacBook1,1 and MacBook2,1](../docs/hardware/macbook21.md)
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- [Lenovo ThinkPad T440p](../docs/install/t440p_external.md)
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- [Lenovo Thinkpad X220](../docs/install/ivy_has_common.md)
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- [Lenovo Thinkpad X220t](../docs/install/ivy_has_common.md)
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- [Lenovo Thinkpad T420](../docs/install/ivy_has_common.md)
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- [Lenovo ThinkPad T420S](../docs/install/ivy_has_common.md)
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- [Lenovo ThinkPad T430](../docs/install/ivy_has_common.md)
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- [Lenovo Thinkpad X230](../docs/install/x230_external.md)
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- [Lenovo Thinkpad X230t](../docs/install/x230_external.md)
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- [Lenovo ThinkPad W541](../docs/install/ivy_has_common.md)
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### Laptops (ARM, with U-Boot payload)
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- [HP Chromebook 14 G3 (nyan-blaze)](../docs/install/chromebooks.md)
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- [Acer Chromebook 13 (CB5-311, C810) (nyan-big)](../docs/install/chromebooks.md)
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- [Hisense Chromebook C11 and more (veyron-jerry)](../docs/install/chromebooks.md)
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- [ASUS Chromebook Flip C101 (gru-bob)](../docs/install/chromebooks.md)
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- [Samsung Chromebook Plus (v1) (gru-kevin)](../docs/install/chromebooks.md)
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Downloads
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=========
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You can find this release on the downloads page. At the time of this
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announcement, some of the rsync mirrors may not have it yet, so please check
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another one if your favourite one doesn't have it.
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Leah Rowe