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Update Microsoft.WSL.Kernel to 6.18.20.3#40161

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chessturo wants to merge 2 commits intomasterfrom
user/chessturo/6.18.20.1-update
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Update Microsoft.WSL.Kernel to 6.18.20.3#40161
chessturo wants to merge 2 commits intomasterfrom
user/chessturo/6.18.20.1-update

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@chessturo chessturo commented Apr 10, 2026 •
edited by benhillis
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Updated Microsoft.WSL.Kernel package version from 6.6.114.1-1 to 6.18.20.3-1.

  • Release rolling-lts/wsl/6.18.20.3
  • Update to stable kernel version v6.18.20
  • New x86 and ARM64 configs including:
    • CONFIG_ANON_VMA_NAME
    • Various options for CAN support
    • CONFIG_INPUT_JOYDEV
    • CONFIG_USB_MON
    • F2FS support
    • ExFAT support
  • Configs added to ARM64 already present on x86
    • FAT support
  • Fewer out of tree patches. Sets of patches now included from upstream:
    • Virtio PMEM support for PCI BAR addresses (feature/hvlite_virtio_pmem/6.6)
    • ICTIMESYNCFLAG_SYNC support (fix/hv_utils_clock/6.6)

Closes: #7747, #11994, #11503, #8231, #11801, #11285

@chessturo chessturo requested a review from a team as a code owner April 10, 2026 22:05
Copilot AI review requested due to automatic review settings April 10, 2026 22:05
Copilot AI reviewed Apr 10, 2026
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Pull request overview

Updates the WSL kernel NuGet dependency to ship a newer rolling-lts kernel release, aligning the repo’s build inputs with kernel v6.18.20 and the associated configuration/patch set described in the PR metadata.

Changes:

  • Bump Microsoft.WSL.Kernel package version from 6.6.114.1-1 to 6.18.20.1-1.

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OneBlue commented Apr 11, 2026

Updated this branch since the build break in master has been resolved

@benhillis
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benhillis commented Apr 11, 2026

Strange, a bunch of errors around importing distributions. I'll try to get a local repro.

Copilot AI review requested due to automatic review settings April 13, 2026 18:05
Copilot AI reviewed Apr 13, 2026
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Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

Comment thread test/windows/UnitTests.cpp
Comment thread test/linux/unit_tests/lxtfs.c
Comment thread test/linux/unit_tests/lxtfs.c
Copilot AI review requested due to automatic review settings April 20, 2026 23:46
@benhillis benhillis force-pushed the user/chessturo/6.18.20.1-update branch from 2a21f7b to 80c362e Compare April 20, 2026 23:46
Copilot AI reviewed Apr 20, 2026
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Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

Comment thread packages.config
Comment thread test/linux/unit_tests/lxtfs.c Outdated
github-code-quality[bot]
github-code-quality Bot found potential problems Apr 21, 2026
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Comment thread src/windows/wslsettings/Views/Settings/SettingsApplyHelper.cs Fixed
@benhillis benhillis changed the title Update Microsoft.WSL.Kernel to 6.18.20.1 Update Microsoft.WSL.Kernel to 6.18.20.3 Apr 21, 2026
Copilot AI review requested due to automatic review settings April 21, 2026 20:20
@benhillis benhillis force-pushed the user/chessturo/6.18.20.1-update branch from 3d2c733 to c304a6e Compare April 21, 2026 20:20
Copilot AI reviewed Apr 21, 2026
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Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Comment thread test/windows/UnitTests.cpp
Comment thread test/windows/NetworkTests.cpp Outdated
Copilot AI review requested due to automatic review settings April 23, 2026 16:22
@benhillis benhillis force-pushed the user/chessturo/6.18.20.1-update branch from f785e6e to 3be1194 Compare April 23, 2026 16:22
Copilot AI reviewed Apr 23, 2026
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Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

Comment thread packages.config
benhillis
benhillis requested changes Apr 23, 2026
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This is looking good, but let's hold off on merging 6.18 until we promote the current 2.7.X WSL package to GA.

Ben Hillis and others added 2 commits April 23, 2026 11:27
Update Microsoft.WSL.Kernel to 6.18.20.3-1
a8cedd6 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Update tests for Linux 6.18 kernel behavior changes
6108599 
Adjust eventfd size validation, lxtfs writev, and mount option
format expectations to match 6.18 kernel behavior.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@benhillis benhillis force-pushed the user/chessturo/6.18.20.1-update branch from 3be1194 to 6108599 Compare April 23, 2026 18:27
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Gamepad support in WSL2 (/dev/jsx)

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