Update Microsoft.WSLg to 1.0.79

[beena352]

Summary of the Pull Request

Update Microsoft.WSLg from 1.0.78 → 1.0.79 in packages.config.
This is the first WSLg release that includes the Mesa NOTICE entry, which is required for OSS compliance in the WSL MSI. After this bump lands and the notice pipeline re-runs, the auto-generated NOTICE will finally include Mesa.

PR Checklist

• Closes: Link to issue #xxx
• Communication: I've discussed this with core contributors already. If work hasn't been agreed, this work might be rejected
• Tests: Added/updated if needed and all pass
• Localization: All end user facing strings can be localized
• Dev docs: Added/updated if needed
• Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

1.0.79 is the first WSLg release that ships the Mesa NOTICE entry, which is required for the OSS NOTICE.txt we install via the MSI (#40893). Without this update, the auto-generated NOTICE updates (e.g. #40898) cannot include Mesa.
Note: the package is available on the shine-oss WslDependencies feed this repo restores from.

Validation Steps Performed

• cmake . restored Microsoft.WSLg.1.0.79 from the shine-oss WslDependencies feed cleanly
• Full build (cmake --build . -- -m) completed with no errors
• Deployed via tools\deploy\deploy-to-host.ps1
• wsl --version reports WSLg version: 1.0.79
• Firefox (firefox-esr) launches and renders correctly on the Windows desktop

[Copilot]

Pull request overview

This PR updates the pinned Microsoft.WSLg NuGet to 1.0.79-Beta2 and adjusts build/packaging plumbing so WSLg assets are located correctly and WSL’s OSS NOTICE generation/installation can incorporate WSLg’s NOTICE (now including Mesa attribution).

Changes:

• Bump Microsoft.WSLg from 1.0.78 to 1.0.79-Beta2 in packages.config.
• Update CMake + WiX paths to WSLg assets to use the package-root layout (via WSLG_SOURCE_DIR pointing at the NuGet root).
• Update the NOTICE generation pipeline to restore the WSLg NuGet and append its NOTICE.txt, and install the repo-root NOTICE.txt into the MSI (with MSI rebuild dependency tracking).

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages.config	Pins Microsoft.WSLg to 1.0.79-Beta2.
CMakeLists.txt	Points WSLG_SOURCE_DIR at the WSLg NuGet root and updates symlink/link paths for WSLg binaries/PDBs accordingly.
msipackage/package.wix.in	Installs NOTICE.txt into INSTALLDIR and updates WSLg asset paths (system.vhd, .rdp) to match the new WSLG_SOURCE_DIR layout.
msipackage/CMakeLists.txt	Ensures MSI packaging rebuilds when the repo-root NOTICE.txt changes by adding it as a dependency.
.pipelines/wsl-build-notice.yml	Restores the WSLg NuGet during NOTICE generation and appends its NOTICE.txt via the notice@0 task’s additionaldata.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

[OneBlue]

Hmm the -Beta2 part isn't expected here. Let me double check

[JohnMcPMS]

The previous change broke UserConfigs, any chance this one could revert that bit of it:
#40893 (comment)

[benhillis]

nfigs, any chance this

Do you have more context / details on this?

[beena352]

nfigs, any chance this

Do you have more context / details on this?

The remap was needed for an earlier design where the MSI was going to ship WSLg's NOTICE.txt directly, but we pivoted to having the notice pipeline merge it into the repo's root NOTICE. In the final design nothing actually needs  WSLG_SOURCE_DIR  pointed at the package root every reference is manually re-adding  /build/native/bin/ . I'll put up a follow-up PR to revert the remap and restore  UserConfig.cmake.sample .

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.