Windows Subsystem for Linux 2.9.8

What's Changed

• Run the distro validation script daily by @OneBlue in https://github.com/microsoft/WSL/pull/40920
• Added WSLc API docs by @craigloewen-msft in https://github.com/microsoft/WSL/pull/40922
• Add a script to validate & fix mismatches CRLF in the repo by @OneBlue in https://github.com/microsoft/WSL/pull/40933
• Remove '.' from HCS suffix by @OneBlue in https://github.com/microsoft/WSL/pull/40946
• fix socket channel set exit events by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40924
• Use strict detection of http line ending for docker response by @yao-msft in https://github.com/microsoft/WSL/pull/40932
• CLI: Fix hang with exec/run -i with self-exiting command and open stdin by @dkbennett in https://github.com/microsoft/WSL/pull/40921
• Don't append the build prefix when a line is being continued from a previous log entry by @OneBlue in https://github.com/microsoft/WSL/pull/40947
• Implement --stop-timeout in wslc create|run and support -1 (infinite) timeouts by @OneBlue in https://github.com/microsoft/WSL/pull/40919
• fix: use lowercased key when validating windowsterminal.profileTemplate by @Osamaali313 in https://github.com/microsoft/WSL/pull/40911
• Use throwing overloads in SetupTestDirectory by @beena352 in https://github.com/microsoft/WSL/pull/40964
• Publish the WSLC nuget package on github releases by @OneBlue in https://github.com/microsoft/WSL/pull/40962
• Support arbitrary network driver options in wslc network create by @beena352 in https://github.com/microsoft/WSL/pull/40859
• Fix various issues in the virtionet tests by @OneBlue in https://github.com/microsoft/WSL/pull/40963
• Don't use an overlay for the gpu libraries if the inbox folder isn't present by @OneBlue in https://github.com/microsoft/WSL/pull/40969
• Fix Lost sub directory structure when mapping to a VHD volume by @kvega005 in https://github.com/microsoft/WSL/pull/40857
• Add support for callback when loading images and display loaded images in wslc image load by @OneBlue in https://github.com/microsoft/WSL/pull/40960
• Bump Kali to 2026.2 by @g0tmi1k in https://github.com/microsoft/WSL/pull/40982
• Fix https proxy not set when pac is used by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40950
• Fix E_ACCESSDENIED during download if temp is hidden by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40708
• Add configurable storage path for the default wslc session by @benhillis in https://github.com/microsoft/WSL/pull/40956
• Added samples to the API by @craigloewen-msft in https://github.com/microsoft/WSL/pull/40930
• Document what the session creation parameters do, and which of them ae visible to all users on the machine by @OneBlue in https://github.com/microsoft/WSL/pull/41020
• fix(l10n): add localization guidance comments for commonly mistranslated terms by @yeelam-gordon in https://github.com/microsoft/WSL/pull/14440
• Cap storage hw queue count to 4 by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40975
• test(drvfs): add O_APPEND ftruncate coverage, skip on virtiofs by @benhillis in https://github.com/microsoft/WSL/pull/41032
• Update validate-line-endings.py to not depend on pip packages by @OneBlue in https://github.com/microsoft/WSL/pull/41022
• Fix potential use-after-free on the container deletion path by @OneBlue in https://github.com/microsoft/WSL/pull/41018
• Remove comment in packages.config causing powershell parsing error by @OneBlue in https://github.com/microsoft/WSL/pull/41036
• Collect WSLg logs and crash dumps in collect-wsl-logs.ps1 by @benhillis in https://github.com/microsoft/WSL/pull/40913
• Log an error when connect() fails in the NAT mode relay by @OneBlue in https://github.com/microsoft/WSL/pull/41033
• Mark routes via a link-local gateway as onlink to fix VPN /32 networking failures by @benhillis in https://github.com/microsoft/WSL/pull/41003
• Add wslc network connect and disconnect commands by @beena352 in https://github.com/microsoft/WSL/pull/41011
• Fix flaky E2E network list test assertion by @beena352 in https://github.com/microsoft/WSL/pull/41009
• Add support for container healthchecks by @OneBlue in https://github.com/microsoft/WSL/pull/41012
• Bump DeviceHost to 1.2.48-0 and enable virtiofs O_APPEND ftruncate test by @benhillis in https://github.com/microsoft/WSL/pull/41044
• Read /etc/locale.conf when configuring the distro locale by @i4M1k0SU in https://github.com/microsoft/WSL/pull/40940
• Retry to delete WSL distribution shortcut for up to 10 seconds by @OneBlue in https://github.com/microsoft/WSL/pull/41046
• Make the release pipeline logic to push to the store optional (and disabled by default) by @OneBlue in https://github.com/microsoft/WSL/pull/41045
• Add wslc container cp command for tar archive upload by @ptrivedi in https://github.com/microsoft/WSL/pull/40835
• Pre-download socat to avoid test failing due to connectivity issues by @OneBlue in https://github.com/microsoft/WSL/pull/41035
• Enable rollback on install failures during update by @yeelam-gordon in https://github.com/microsoft/WSL/pull/40524
• CLI: Help improvements - Table output with color and routing support by @dkbennett in https://github.com/microsoft/WSL/pull/40848
• Fix: handle partial write in stdio forwarding by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41065
• Protect critical WSL processes under heavy load with cgroup & isolate distro cgroups by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40519
• Localization change from build: 152044029 by @OneBlue in https://github.com/microsoft/WSL/pull/41066
• Add --format option to wslc version command by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41078
• Add missing error code mappings found in user visible errors by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41074
• Refine CODEOWNERS for WSLC by @benhillis in https://github.com/microsoft/WSL/pull/41079
• Start the plan9 server on WSL2 even when automount and mountFsTab are… by @Lsseeker in https://github.com/microsoft/WSL/pull/41057
• Remove hard-coded password from C# API docs by @benhillis in https://github.com/microsoft/WSL/pull/41098
• Simplify e2e build-test image cleanup with per-test RAII ownership by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41094
• Use bespoke interfaces to communicate with wsldevicehost by @Brian-Perkins in https://github.com/microsoft/WSL/pull/41099
• CLI: Update all non-help output to use Reporter by @dkbennett in https://github.com/microsoft/WSL/pull/41010
• CLI: Route wslc warnings through Reporter by @dkbennett in https://github.com/microsoft/WSL/pull/41111
• Fix cgmanifest.json hash format and add type:git entries for NOTICE generation by @beena352 in https://github.com/microsoft/WSL/pull/41025
• Update .NET runtime packages to 10.0.10 by @benhillis in https://github.com/microsoft/WSL/pull/41127
• Use single virtiofs device for all shares by @damanm24 in https://github.com/microsoft/WSL/pull/41129
• Bump Linux SDK to 1.23.0 and guard char->wide formatters to Windows by @benhillis in https://github.com/microsoft/WSL/pull/41071
• Fix MoveDistribution VHD ownership restore to reuse the resolved file handle by @benhillis in https://github.com/microsoft/WSL/pull/41131
• Add --ip, --link, --link-local-ip, --driver-opt, --network-alias flag… by @beena352 in https://github.com/microsoft/WSL/pull/41070
• CLI: Add quiet support to pull and align with Docker by @dkbennett in https://github.com/microsoft/WSL/pull/41121
• WSLC: Add UDP and IPv6 support for exposed image ports by @dkbennett in https://github.com/microsoft/WSL/pull/41124
• CLI: Make container id required for stop command by @dkbennett in https://github.com/microsoft/WSL/pull/41108
• Fix various issues in the distro validation script by @OneBlue in https://github.com/microsoft/WSL/pull/41141
• Handle offlink default gateways in GNS by @benhillis in https://github.com/microsoft/WSL/pull/41130
• Fix spurious ERROR log for unsupported optional cgroup controllers by @benhillis in https://github.com/microsoft/WSL/pull/41122
• Retry to delete distribution VHD for up to 10 seconds by @OneBlue in https://github.com/microsoft/WSL/pull/41153
• Bump gitpython from 3.1.50 to 3.1.52 in /tools/devops by @dependabot[bot] in https://github.com/microsoft/WSL/pull/41159
• Track implicit autobind ports from listen() in Consomme networking by @benhillis in https://github.com/microsoft/WSL/pull/41125
• Fix a teardown race in HttpProxyStateTracker by @benhillis in https://github.com/microsoft/WSL/pull/41097
• Update GitHub Actions workflow for issue comments by @piercosta in https://github.com/microsoft/WSL/pull/41142
• virtiofs: Use aggregate share feature in WSLC by @damanm24 in https://github.com/microsoft/WSL/pull/41151
• Fix recurring TSA onboarding failure in release builds by @benhillis in https://github.com/microsoft/WSL/pull/41167
• WSLC: Refactor ParseImage and ParseRepository (PR Feedback followup) by @dkbennett in https://github.com/microsoft/WSL/pull/41154
• Update Tumbleweed v20260724.0 by @sbradnick in https://github.com/microsoft/WSL/pull/41168
• Use an azure key vault to store Github tokens for automated pull requests & release creation by @OneBlue in https://github.com/microsoft/WSL/pull/41158
• Improve WSL2 guest memory reclaim by @benhillis in https://github.com/microsoft/WSL/pull/41096
• CLI: Align WSLC argument parser with Docker flag and value semantics by @dkbennett in https://github.com/microsoft/WSL/pull/41160
• fixed title error visibility by @shuaiyuanxx in https://github.com/microsoft/WSL/pull/41118
• Follow up to the cgroup PR #40519 by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41073
• Use 4 request queues for aggregate virtiofs devices by @benhillis in https://github.com/microsoft/WSL/pull/41169
• Address memory reclaim follow-ups from #41096 by @benhillis in https://github.com/microsoft/WSL/pull/41171
• Add --ip-range option to network create by @beena352 in https://github.com/microsoft/WSL/pull/41138
• wslc: switch image build from docker build to docker buildx build by @beena352 in https://github.com/microsoft/WSL/pull/41133
• Serialize move/resize/set-sparse against in-progress conversions by @benhillis in https://github.com/microsoft/WSL/pull/41170
• Pin .resw files to CRLF via .gitattributes by @benhillis in https://github.com/microsoft/WSL/pull/41186
• Use RetryWithTimeout for ManageRejectedWhileLocked lock wait by @benhillis in https://github.com/microsoft/WSL/pull/41188
• WSLC SDK install API update by @JohnMcPMS in https://github.com/microsoft/WSL/pull/40949
• Use canonical path when copying files from containers by @OneBlue in https://github.com/microsoft/WSL/pull/41190
• Add a 'Error information from the engine:' prefix to error messages returned from docker when the current display language is not english by @OneBlue in https://github.com/microsoft/WSL/pull/41187
• Add --secret flag to image build command by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41106
• Auth API update by @JohnMcPMS in https://github.com/microsoft/WSL/pull/41197
• Validate error message in NetworkCreateInvalidIpRangeTest by @beena352 in https://github.com/microsoft/WSL/pull/41198
• Cap guest usage of host ephemeral range to half of the ports in mirrored mode by @FetoiuCatalin in https://github.com/microsoft/WSL/pull/41085
• Add CSV parsing helpers to shared string library by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41207
• WSLc Container Open SDK support by @JohnMcPMS in https://github.com/microsoft/WSL/pull/41199
• Add comment about support floor by @JohnMcPMS in https://github.com/microsoft/WSL/pull/41219
• Add missing image build options in nuget by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41037
• Fix: add systemd unit to make /mnt/wsl recursive slave before umount by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41086
• Warn before opening downloaded WSL distributions by @benhillis in https://github.com/microsoft/WSL/pull/41214
• archlinux: Release 2026.08.01.174141 by @archlinux-github in https://github.com/microsoft/WSL/pull/41225
• CLI: Unify interactive input and output in Reporter by @dkbennett in https://github.com/microsoft/WSL/pull/41215
• Add --output flag to wslc build by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41157
• CLI: Fix UTF-8 encoding in non-tty relay use by @dkbennett in https://github.com/microsoft/WSL/pull/41235
• Add a UserConfig setting to use local wsldevicehost binaries instead of the nuget package by @OneBlue in https://github.com/microsoft/WSL/pull/41241
• Added outcome telemetry for cold start by @shuaiyuanxx in https://github.com/microsoft/WSL/pull/41200
• Use explicit tokens for user registry access by @benhillis in https://github.com/microsoft/WSL/pull/41245
• Fix minor issues found during code review by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41104
• Fix: Un-escape the value before setting LANG by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41103
• fix: port 0 tracking not working for threads by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41051
• wslc: idle-terminate inactive per-user session VMs by @benhillis in https://github.com/microsoft/WSL/pull/41077
• Implement skipped wslc E2E test by @AmelBawa-msft in https://github.com/microsoft/WSL/pull/41243
• wslc: Run saved state cleanup as user by @benhillis in https://github.com/microsoft/WSL/pull/41259
• Add timeout to create process accepts by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41252
• Add version resource to wslc.exe by @AmelBawa-msft in https://github.com/microsoft/WSL/pull/41266
• Bind KdRelay to loopback by @benhillis in https://github.com/microsoft/WSL/pull/41260
• virtionet: send runtime updates to network device by @Brian-Perkins in https://github.com/microsoft/WSL/pull/41263
• Update SLE 16.0 for QU3 by @sbradnick in https://github.com/microsoft/WSL/pull/41262
• wslc: emit --format json output on a single line by @AmelBawa-msft in https://github.com/microsoft/WSL/pull/41268
• Inherit image labels on containers  by @beena352 in https://github.com/microsoft/WSL/pull/41246
• Update GitPython to 3.1.58 by @OneBlue in https://github.com/microsoft/WSL/pull/41275
• Retry distro file deletion under ACCESS_DENIED during distro unregistration by @OneBlue in https://github.com/microsoft/WSL/pull/41274
• Added keep alive setting by @craigloewen-msft in https://github.com/microsoft/WSL/pull/41109
• Enable unity builds for wsltests by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41247
• Normalize NULL char* to in Linux logging by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41271
• Fix: Update plan9 registration with the new default uid after OOBE by @chemwolf6922 in https://github.com/microsoft/WSL/pull/40977
• Add --volumes option to wslc container rm command by @AmelBawa-msft in https://github.com/microsoft/WSL/pull/41265
• Add --iidfile to wslc image build by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41212
• Add support for host loopback by @OneBlue in https://github.com/microsoft/WSL/pull/41264
• Add pipeline stage to produce DCAT submission files by @florelis in https://github.com/microsoft/WSL/pull/41236
• Add registry allowlist support to image builds by @beena352 in https://github.com/microsoft/WSL/pull/41211
• Extend line ending validator to cover cmake files by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41289
• CLI: Rename Reporter class to Terminal by @dkbennett in https://github.com/microsoft/WSL/pull/41276
• CLI: Cache converted CLI arguments with on-demand revalidation, and unify typed value accessors by @dkbennett in https://github.com/microsoft/WSL/pull/41189
• Fix default route classification logic by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41278
• Fix force shutdown deadlock race by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41269
• Notice change from build: 154365024 by @OneBlue in https://github.com/microsoft/WSL/pull/41298
• wslc: emit list command --format json output as one object per line by @AmelBawa-msft in https://github.com/microsoft/WSL/pull/41280
• CLI: Add --pull option to container create and run by @dkbennett in https://github.com/microsoft/WSL/pull/41304
• CLI: Make argument validation idempotent and adjust global argument freezing by @dkbennett in https://github.com/microsoft/WSL/pull/41305
• Update Microsoft.WSL.DeviceHost to 1.2.60 by @OneBlue in https://github.com/microsoft/WSL/pull/41292
• Address review follow-up on WSLContainerRegistryAllowlist policy by @beena352 in https://github.com/microsoft/WSL/pull/41306
• Restore pipeline logic to push updates to the store by default by @OneBlue in https://github.com/microsoft/WSL/pull/41308
• Fix unqualified WEX::Logging::Log breaking release builds by @OneBlue in https://github.com/microsoft/WSL/pull/41315
• Fix excessive /proc//mountinfo query in p9 server by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41312
• mountutil: skip empty tokens in mount option parser by @Eamon2009 in https://github.com/microsoft/WSL/pull/41311
• Add wsldevicehostproxystub.dll to the list of target to build during release builds by @OneBlue in https://github.com/microsoft/WSL/pull/41317
• Make paths absolute before weakly_canonical and add regression tests by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41290
• add --progress to wslc build by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41307
• Enable Unity build for wslclib and enable CI unity builds by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41302
• Retry deleting distribution shortcuts for 10 seconds by @OneBlue in https://github.com/microsoft/WSL/pull/41329
• Draft: add manual VHDX compaction command for stopped WSL distros by @Guayamose in https://github.com/microsoft/WSL/pull/40481
• Mount plugin folders on behalf of the user owning the wsl session by @OneBlue in https://github.com/microsoft/WSL/pull/41331
• Update Microsoft.NETCore.App.Runtime to 10.0.11 by @OneBlue in https://github.com/microsoft/WSL/pull/41332
• Report cached build steps in wslc build output by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41334
• Notice change from build: 154708324 by @OneBlue in https://github.com/microsoft/WSL/pull/41340
• Localization change from build: 154739322 by @OneBlue in https://github.com/microsoft/WSL/pull/41341
• Pin GitHub Actions to full-length commit SHAs by @danfiedler-msft in https://github.com/microsoft/WSL/pull/41325
• Add Config.Image on container inspect by @beena352 in https://github.com/microsoft/WSL/pull/41336
• Support Docker-style network aliases in wslc by @danegsta in https://github.com/microsoft/WSL/pull/40972
• Use alpine instead of debian for registry push/pull test payloads by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41338
• CLI: Align network list command to be consistent with Docker behavior by @dkbennett in https://github.com/microsoft/WSL/pull/41350
• CLI: Set defaults for signal arguments in stop/kill commands, update help documentation by @dkbennett in https://github.com/microsoft/WSL/pull/41348
• Bump the github-actions group with 3 updates by @dependabot[bot] in https://github.com/microsoft/WSL/pull/41347
• Simplify VHD ownership handling during distribution moves by @benhillis in https://github.com/microsoft/WSL/pull/41333
• Return non vhd volumes in container inspect by @OneBlue in https://github.com/microsoft/WSL/pull/41335
• Preserve token owner during distribution move rollback by @benhillis in https://github.com/microsoft/WSL/pull/41355
• Add --filter support to wslc network list by @beena352 in https://github.com/microsoft/WSL/pull/41318
• CLI: Help polish & add short, relevant help for usage/argument errors by @dkbennett in https://github.com/microsoft/WSL/pull/41316
• CLI: Fix shm-size and all text-to-byte size conversion and align them all to Docker by @dkbennett in https://github.com/microsoft/WSL/pull/41360
• Move Docker call outside network lock by @beena352 in https://github.com/microsoft/WSL/pull/41362
• Add --filter support to volume list by @beena352 in https://github.com/microsoft/WSL/pull/41359
• CLI: Add --mount support for create and run by @dkbennett in https://github.com/microsoft/WSL/pull/41337
• Fix potential spin in interop message relay by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41319
• Treat EFSBADCRC as disk corruption by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41368
• Warn the user if VMP is not installed when create instance fails by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41357
• Use canonical path in DrvfsMountManyVirtioFsShares by @OneBlue in https://github.com/microsoft/WSL/pull/41371
• Localization change from build: 155144781 by @OneBlue in https://github.com/microsoft/WSL/pull/41372
• wslc: match docker output format for image list by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41369
• Unmount the distribution before completing import by @OneBlue in https://github.com/microsoft/WSL/pull/41370
• Add a script to collect WSL logs in a loop by @OneBlue in https://github.com/microsoft/WSL/pull/41240
• Make sure that message structures are correctly zero-initialized by @benhillis in https://github.com/microsoft/WSL/pull/41373
• Add --ip flag to container create and run by @beena352 in https://github.com/microsoft/WSL/pull/41374
• Accept ERROR_SUCCESS_REBOOT_REQUIRED in the installer tests by @OneBlue in https://github.com/microsoft/WSL/pull/41389
• Split WSLCCreateSession event by @craigloewen-msft in https://github.com/microsoft/WSL/pull/41327
• Match docker's network list, inspect and prune output in wslc by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41377
• Use unified kernel artifacts VHD layout by @benhillis in https://github.com/microsoft/WSL/pull/41267
• Make DrvFs initialization callback lifetime-safe by @benhillis in https://github.com/microsoft/WSL/pull/41218
• Cache container images during tests to prevent unnecessary loading by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41353
• Add ADMX policy for privileged WSL container support by @benhillis in https://github.com/microsoft/WSL/pull/41401
• Fix: Reattach stale cached device after backing volume is reattached by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41379
• Propagate LaunchInit error code by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41380
• Add timeout for udp dns requests to avoid resource leak by @chemwolf6922 in https://github.com/microsoft/WSL/pull/41395
• Align wslc volume inspect and prune output with docker by @ggarzia-MSFT in https://github.com/microsoft/WSL/pull/41404
• Fix incorrect string -> wstring conversion, causing utf16 corruption by @OneBlue in https://github.com/microsoft/WSL/pull/41406
• Create a script to generate the Microsoft.WSL.TestData nuget package by @OneBlue in https://github.com/microsoft/WSL/pull/41405
• Enable discard for WSLc volumes by @JohnMcPMS in https://github.com/microsoft/WSL/pull/41411
• Poll for the result of operations during MSI installation by @OneBlue in https://github.com/microsoft/WSL/pull/41415

New Contributors

• @Osamaali313 made their first contribution in https://github.com/microsoft/WSL/pull/40911
• @i4M1k0SU made their first contribution in https://github.com/microsoft/WSL/pull/40940
• @Lsseeker made their first contribution in https://github.com/microsoft/WSL/pull/41057
• @dependabot[bot] made their first contribution in https://github.com/microsoft/WSL/pull/41159
• @piercosta made their first contribution in https://github.com/microsoft/WSL/pull/41142
• @Guayamose made their first contribution in https://github.com/microsoft/WSL/pull/40481
• @danfiedler-msft made their first contribution in https://github.com/microsoft/WSL/pull/41325
• @danegsta made their first contribution in https://github.com/microsoft/WSL/pull/40972

Full Changelog: https://github.com/microsoft/WSL/compare/2.9.3...2.9.8