WSL

• Only mirror supported proxy settings when autoproxy is enabled
• Plumb loopback routes during both IP address add and IP address update operations
• Add more actionable error message for when Virtual Machine Platform is not present (solves #10666)
• Add error handling to support servercore SKU

• Fix issue with converting distributions from WSL1 to WSL2
• Set ApplicationName when creating wslhost / wslrelay processes (solves #10651)
• Remove spaces in g_ConfigBootInitWaitCommand (solves #10653)
• Update MSRDC to 1.2.4677
• Update Microsoft.Direct3D.Linux to version 1.611.1-81528511 (solves #10671)

• Promote the following wslconfig settings to [wsl2]: (solves #10616)
  experimental.dnsTunneling -> wsl2.dnsTunneling
experimental.firewall -> wsl2.firewall
experimental.networkingMode -> wsl2.networkingMode
experimental.autoProxy -> wsl2.autoProxy
  Previous settings under the experimental section are still supported for backwards compatibility

• Fix issue where wslinfo -n is not correctly skipping printing the newline

• Work around issue where init is being launched without /dev/console, which can cause hangs

• Remove --event-viewer and --release-notes arguments from wsl.exe usage and various cleanup (solves #10600)

• Enable process mitigation policies for wslservice and wslnstaller service

• Improve error handling when distribution VHD fail to mount

• Add wsl.vhdSize argument for customizing vhd size (solves #10565)

• Update Microsoft.WSL.Kernel to version 5.15.133.1-1

• Update WSLg to 1.0.59

• Resolve potential crash in wslservice.exe
• Implement /usr/bin/wslinfo binary for querying various state, added --networking-mode argument

wslinfo usage:
    --networking-mode
        Display current networking mode.

    -n
        Do not print a newline.

• Fix issue when upgrading from 2.0.1 (solves #10560)
• Continue if unable to reclaim memory. (solves #10534)

• Create a specialized error code when WSL is called from LocalSystem
• Fix same version installs and downgrade (solves #10527)
• Fix upgrade issue caused by setting REINSTALLMODE (solves #10539)
• Fix race condition causing WslInstaller crash

• Mount cgroupv2 at /sys/fs/cgroup if cgroupv1 is disabled (solves #10497)
• Conditionally write the explorer extensions registry keys (solves #9231)
• Don't try to inherit the same handle twice (solves #10488)
• Fix parsing of '0GB' memory strings (solves #10503)
• Update WSLg to 1.0.58

• Added support for new opt-in experimental features to %USERPROFILE%\.wslconfig. For full info see the WSL docs update: https://aka.ms/wslsep2023updatedocspage
  • experimental.autoMemoryReclaim - Makes the WSL VM shrink in memory as you use it by reclaiming cached memory
  • experimental.networkingMode - A new networking mode for WSL that adds new features and improves network compatibility
  • experimental.dnsTunneling- Changes how WSL resolves DNS requests to improve network compatibility
  • experimental.firewall- Applies Windows firewall rules to WSL, and allows for advanced firewall controls for the WSL VM
  • experimental.autoProxy- Makes WSL automatically use the proxy information from Windows to improve network compatibility

[experimental]
autoMemoryReclaim=gradual | dropcache | disabled
networkingMode=mirrored
dnsTunneling=true
firewall=true
autoProxy=true

• Store WSL is now accessible from Session 0 (solves #9231)
• All binaries shipped in the WSL package are now signed
• Introduce experimental.autoMemoryReclaim setting to %USERPROFILE%\.wslconfig
• Prompt the user to enable VMP if HNS isn't available on the machine
• Fix localhost relay failing if ipv6 is disabled
• Improve error message for WSL1 disabled policy to provide upgrade instructions
• Fix microk8s scenario for mirrored networking
• Create shared mounts when init sets up the distro namespace (solves #10410)
• Detach user block devices before terminating the VM
• Protect '.wslconfig' from being incorrectly translated
• Add logic to generate a systemd unit to protect the binfmt interpreter (solves #8843)
• Fix potential wslservice.exe crash.
• Retry plan9 mounts on IO error
• Update Microsoft.WSL.Kernel version 5.15.123.1-1
• Display a notification prompting the user to install missing optional components
• Add --manage <distro_name> --set-sparse to wsl.exe
• Fix various issues with the 'Update available' notification logic
• Update WSLg to 1.0.57
  • WSL GUI apps now have Windows snapping with the keyboard (Press WIN + an arrow key to snap to the side)
• Update MSRDC to 1.2.4485

• Update MSRDC to version 1.2.4485
• Update WSLg to 1.0.57

• Update Microsoft.WSL.Kernel to version 5.15.90.4-1

• Update Microsoft.WSL.Kernel to version 5.15.90.3-1
• Update MSRDC to 1.2.4419
• Update Microsoft.WSLg to version 1.0.55
• Fix /run/user/ being hidden when a new login session is created by symli... (solves #10205)
• Implement a --no-distribution option in wsl --install

• Switch back to previous version of lxutil.dll while an issue is being debugged

• Mount /usr/lib/wsl/lib as rw
• Set a timeout when force terminating instances
• Allow created vhdx to have sparse flag set
• Make /run/user/{user} writable
• Memory reclamation idle detection, drop_caches. To use add the below to %userprofile%\.wslconfig

[experimental]
autoMemoryReclaim=true

• Fix COM race condition when service is stopped
• Install missing optional components if needed in wsl.exe --install
• Fix potential wslservice crash in .wslconfig parsing
• Use --numeric-owner when importing and exporting distros so the root namespace /etc/passwd is not used (solves #9982)
• Update invalid wslconfig key warning to call out which key has the invalid value
• Change localhost relay creation to be non-fatal (solves #9924)
• Fix behavior of guiApplications=false in .wslconfig
• Fix intermittent localhost forwarding issues (Solves #9921)
• Use /mnt/wslg for /run/user (solves #9913)
• Update Microsoft.WSL.Kernel to version 5.15.90.2-3
  • This new kernel includes a SCSI fix that allows WSL to boot faster
• Update Microsoft.WSLg to version 1.0.54
• Update MSRDC to 1.2.4240
• Update Microsoft.DXCore.Linux to version 10.0.25880.1000-230602-1350.main

• Resolve issue where creating notifications could cause launch failures.

• Use --numeric-owner tar option when importing and exporting distros so the root namespace /etc/passwd is not used (solves #9982)

• Mount cgroup v1 for WSL2 to resolve issues with certain versions of docker (solves #9962)

• WSLg: Revert change to use overlayfs for /run/user/ while a more complete fix is investigated

• Fix intermittent localhost forwarding issues (solves #9921)
• Use /mnt/wslg for /run/user (solves #9913)
• Fix invalid handle close on wslservice.exe exit

• Revert to the 5.15.90.1 version of the kernel while we debug a few issues.

• Fix race condition in wslhost's com server logic to prevent a crash
• Remove cgroup_no_v1=all from kernel command line (solves #9868)
• Remove unused WSL_E_PACKAGE_UPGRADE_AVAILABLE error message (solves #9866)
• Give an actionable error message if an error occurs in reading reg keys (solves #9834)
• Redesign the way that page reporting is configured, will result on lower vmmemWSL usage on newer versions of Windows
  • Removes wsl2.pageReportingOrder option from %userprofile%\.wslconfig
• Re-register package if com class creation fails when talking to wslservice (solves #9064)
• Remove bond, dummy, fb_tunnel adapters via kernel command line (solves #7791)
• Bind mount /run/user to //wsl/user before the namespaces fork
• Make /run/user/ an overlayfs so each user can write its folder
• Wait for systemd to be started before forking the mount namespaces
• Update Microsoft.WSL.Kernel to 6.1.21.1-1
  • Update to stable kernel version v6.1.21
  • Out-of-tree vpci patches now included from upstream
  • Out-of-tree vsock patches now included from upstream
  • Enable anonymous VMA name support (ANON_VMA_NAME)
  • Enable use nosuid,noexec mount options on devtmpfs (DEVTMPFS_SAFE)
  • Enable register zeroing on function exit (ZERO_CALL_USED_REGS)
  • Enable check for invalid mappings in user page tables (PAGE_TABLE_CHECK)
  • Enable Kernel Function Probe (FPROBE)
• Update Microsoft.WSLg to version 1.0.51
  • rdpapplist/rdp plugin: support pin WSLg app icon to taskbar (require msrdc update)
  • rdp backend: handle the case nothing to send for window zorder to client
  • rdp backend: use rdp_dispatch_task_to_display_loop for dispatching failure response to display loop
  • rdp shell: fix overactive assert at launch_desktop_shell_process
  • rdp shell/rdp backend: support pin WSLg app icon to taskbar (requires msrdc update)