Add a Windows manifest to uv binaries by samypr100 · Pull Request #16894 · astral-sh/uv

samypr100 · 2025-11-30T00:55:48Z

Summary

Currently we do not include a Windows manifest on the uv binary for windows builds. This can cause problems such as the one in #16877 which can limit what uv can do for some Windows operations (e.g. symlinks) that can have restrictions imposed by the OS unbeknownst to us and make it none obvious to isolate the issue.

Given we already do this for the uv-trampoline, we should also do it for uv. In the case of uv, I opted for explicit entries in the manifest rather than using the defaults embed_manifest crate provides which are not appropriate in all general cases.

The manifest now includes declarations for:

Explicit "system" codepage declaration to retain backwards compat with previous uv releases. We should move to utf-8 codepage in the future to align with uv-trampoline, but it's arguably a breaking change in rare cases. We shouldn't have issues with using utf-8 as we don't really rely on *A calls to begin with.
Explicit Windows 10+ support to ensure the executables are not treated as a legacy, preventing application compatibility layers being wrongly applied to it all the way back to NT 6.0 (Windows Vista). Note, other Windows compatibility entries do not imply support, rather they imply awareness as a preventive measure.
Long Path support to avoid Windows operations assuming MAX_PATH applies. This still requires the system to have long paths enabled via HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem@LongPathsEnabled dword being set to 1 (see ref).
Standard invoker execution levels for CLI applications to disable UAC virtualization after including the manifest.

The resulting manifest is the following

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" 
    xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" manifestVersion="1.0">
    <assemblyIdentity name="uv" type="win32" version="0.9.13.0"></assemblyIdentity>
    <asmv3:trustInfo>
        <asmv3:security>
            <asmv3:requestedPrivileges>
                <asmv3:requestedExecutionLevel level="asInvoker" uiAccess="false"></asmv3:requestedExecutionLevel>
            </asmv3:requestedPrivileges>
        </asmv3:security>
    </asmv3:trustInfo>
    <asmv3:application>
        <asmv3:windowsSettings>
            <longPathAware xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">true</longPathAware>
        </asmv3:windowsSettings>
    </asmv3:application>
    <ms_compatibility:compatibility xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" 
        xmlns="urn:schemas-microsoft-com:compatibility.v1">
        <ms_compatibility:application xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1">
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"></ms_compatibility:supportedOS>
        </ms_compatibility:application>
    </ms_compatibility:compatibility>
</assembly>

For reference, here's cargo's manifest from 1.91

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" 
    xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
        <security>
            <requestedPrivileges>
                <requestedExecutionLevel level="asInvoker" uiAccess="false"></requestedExecutionLevel>
            </requestedPrivileges>
        </security>
    </trustInfo>
    <asmv3:application>
        <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings" 
            xmlns:ws2="http://schemas.microsoft.com/SMI/2016/WindowsSettings">
            <ws2:longPathAware>true</ws2:longPathAware>
            <activeCodePage>UTF-8</activeCodePage>
        </asmv3:windowsSettings>
    </asmv3:application>
    <ms_compatibility:compatibility xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" 
        xmlns="urn:schemas-microsoft-com:compatibility.v1">
        <ms_compatibility:application xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1">
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"></ms_compatibility:supportedOS>
            <ms_compatibility:supportedOS xmlns:ms_compatibility="urn:schemas-microsoft-com:compatibility.v1" Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"></ms_compatibility:supportedOS>
        </ms_compatibility:application>
    </ms_compatibility:compatibility>
</assembly>

Closes #16877

Test Plan

Before changes on Windows 11 25H2 (without SeCreateSymbolicLinkPrivilege)

$ uv init
$ uv add jupyterlab-widgets==3.0.16 --link-mode=symlink
...
Resolved 2 packages in [TIME]
error: Failed to install: jupyterlab_widgets-3.0.16-py3-none-any.whl (jupyterlab-widgets==3.0.16)
  Caused by: failed to symlink file from [CACHE_DIR]\archive-v0\aQcqEjLJAkVwuSzohqymc\jupyterlab_widgets-3.0.16.data\data\share\jupyter\labextensions\@jupyter-widgets\jupyterlab-manager\static\packages_base_lib_index_js-webpack_sharing_consume_default_jquery_jquery.5dd13f8e980fa3c50bfe.js to [ROOT]\.venv\Lib\site-packages\jupyterlab_widgets-3.0.16.data\data\share\jupyter\labextensions\@jupyter-widgets\jupyterlab-manager\static\packages_base_lib_index_js-webpack_sharing_consume_default_jquery_jquery.5dd13f8e980fa3c50bfe.js: A required privilege is not held by the client. (os error 1314)

Before changes on Windows 11 25H2 (with SeCreateSymbolicLinkPrivilege)

$ uv init
$ uv add jupyterlab-widgets==3.0.16 --link-mode=symlink
...
Resolved 2 packages in [TIME]
error: Failed to install: jupyterlab_widgets-3.0.16-py3-none-any.whl (jupyterlab-widgets==3.0.16)
  Caused by: failed to symlink file from [CACHE_DIR]\archive-v0\aQcqEjLJAkVwuSzohqymc\jupyterlab_widgets-3.0.16.data\data\share\jupyter\labextensions\@jupyter-widgets\jupyterlab-manager\static\packages_base_lib_index_js-webpack_sharing_consume_default_jquery_jquery.5dd13f8e980fa3c50bfe.js to [ROOT]\.venv\Lib\site-packages\jupyterlab_widgets-3.0.16.data\data\share\jupyter\labextensions\@jupyter-widgets\jupyterlab-manager\static\packages_base_lib_index_js-webpack_sharing_consume_default_jquery_jquery.5dd13f8e980fa3c50bfe.js: The parameter is incorrect. (os error 87)

After changes on Windows 11 25H2 (with or without SeCreateSymbolicLinkPrivilege)

$ uv init
$ uv add jupyterlab-widgets==3.0.16 --link-mode=symlink
...
Resolved 2 packages in [TIME]
Installed 1 package in [TIME]
 + jupyterlab-widgets==3.0.16

zanieb · 2025-12-01T18:20:15Z

Do we need anything for uvx and/or uvw?

samypr100 · 2025-12-01T18:24:24Z

Do we need anything for uvx and/or uvw?

Yes, they should all have the same manifest

zanieb · 2025-12-01T18:25:33Z

Does it matter though since they just spawn uv immediately? i.e., they don't need long path support right?

samypr100 · 2025-12-01T18:26:22Z

Does it matter though since they just spawn uv immediately? i.e., they don't need long path support right?

Good point, I guess it doesn't matter in this case

This MR contains the following updates: | Package | Update | Change | |---|---|---| | [astral-sh/uv](https://github.com/astral-sh/uv) | patch | `0.9.13` -> `0.9.17` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>astral-sh/uv (astral-sh/uv)</summary> ### [`v0.9.17`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0917) [Compare Source](astral-sh/uv@0.9.16...0.9.17) Released on 2025-12-09. ##### Enhancements - Add `torch-tensorrt` and `torchao` to the PyTorch list ([#17053](astral-sh/uv#17053)) - Add hint for misplaced `--verbose` in `uv tool run` ([#17020](astral-sh/uv#17020)) - Add support for relative durations in `exclude-newer` (a.k.a., dependency cooldowns) ([#16814](astral-sh/uv#16814)) - Add support for relocatable nushell activation script ([#17036](astral-sh/uv#17036)) ##### Bug fixes - Respect dropped (but explicit) indexes in dependency groups ([#17012](astral-sh/uv#17012)) ##### Documentation - Improve `source-exclude` reference docs ([#16832](astral-sh/uv#16832)) - Recommend `UV_NO_DEV` in Docker installs ([#17030](astral-sh/uv#17030)) - Update `UV_VERSION` in docs for GitLab CI/CD ([#17040](astral-sh/uv#17040)) ### [`v0.9.16`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0916) [Compare Source](astral-sh/uv@0.9.15...0.9.16) Released on 2025-12-06. ##### Python - Add CPython 3.14.2 - Add CPython 3.13.11 ##### Enhancements - Add a 5m default timeout to acquiring file locks to fail faster on deadlock ([#16342](astral-sh/uv#16342)) - Add a stub `debug` subcommand to `uv pip` announcing its intentional absence ([#16966](astral-sh/uv#16966)) - Add bounds in `uv add --script` ([#16954](astral-sh/uv#16954)) - Add brew specific message for `uv self update` ([#16838](astral-sh/uv#16838)) - Error when built wheel is for the wrong platform ([#16074](astral-sh/uv#16074)) - Filter wheels from PEP 751 files based on `--no-binary` et al in `uv pip compile` ([#16956](astral-sh/uv#16956)) - Support `--target` and `--prefix` in `uv pip list`, `uv pip freeze`, and `uv pip show` ([#16955](astral-sh/uv#16955)) - Tweak language for build backend validation errors ([#16720](astral-sh/uv#16720)) - Use explicit credentials cache instead of global static ([#16768](astral-sh/uv#16768)) - Enable SIMD in HTML parsing ([#17010](astral-sh/uv#17010)) ##### Preview features - Fix missing preview warning in `uv workspace metadata` ([#16988](astral-sh/uv#16988)) - Add a `uv auth helper --protocol bazel` command ([#16886](astral-sh/uv#16886)) ##### Bug fixes - Fix Pyston wheel compatibility tags ([#16972](astral-sh/uv#16972)) - Allow redundant entries in `tool.uv.build-backend.module-name` but emit warnings ([#16928](astral-sh/uv#16928)) - Fix infinite loop in non-attribute re-treats during HTML parsing ([#17010](astral-sh/uv#17010)) ##### Documentation - Clarify `--project` flag help text to indicate project discovery ([#16965](astral-sh/uv#16965)) - Regenerate the crates.io READMEs on release ([#16992](astral-sh/uv#16992)) - Update Docker integration guide to prefer `COPY` over `ADD` for simple cases ([#16883](astral-sh/uv#16883)) - Update PyTorch documentation to include information about supporting CUDA 13.0.x ([#16957](astral-sh/uv#16957)) - Update the versioning policy ([#16710](astral-sh/uv#16710)) - Upgrade PyTorch documentation to latest versions ([#16970](astral-sh/uv#16970)) ### [`v0.9.15`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0915) [Compare Source](astral-sh/uv@0.9.14...0.9.15) Released on 2025-12-02. ##### Python - Add CPython 3.14.1 - Add CPython 3.13.10 ##### Enhancements - Add ROCm 6.4 to `--torch-backend=auto` ([#16919](astral-sh/uv#16919)) - Add a Windows manifest to uv binaries ([#16894](astral-sh/uv#16894)) - Add LFS toggle to Git sources ([#16143](astral-sh/uv#16143)) - Cache source reads during resolution ([#16888](astral-sh/uv#16888)) - Allow reading requirements from scripts without an extension ([#16923](astral-sh/uv#16923)) - Allow reading requirements from scripts with HTTP(S) paths ([#16891](astral-sh/uv#16891)) ##### Configuration - Add `UV_HIDE_BUILD_OUTPUT` to omit build logs ([#16885](astral-sh/uv#16885)) ##### Bug fixes - Fix `uv-trampoline-builder` builds from crates.io by moving bundled executables ([#16922](astral-sh/uv#16922)) - Respect `NO_COLOR` and always show the command as a header when paging `uv help` output ([#16908](astral-sh/uv#16908)) - Use `0o666` permissions for flock files instead of `0o777` ([#16845](astral-sh/uv#16845)) - Revert "Bump `astral-tl` to v0.7.10 ([#16887](astral-sh/uv#16887))" to narrow down a regression causing hangs in metadata retrieval ([#16938](astral-sh/uv#16938)) ##### Documentation - Link to the uv version in crates.io member READMEs ([#16939](astral-sh/uv#16939)) ### [`v0.9.14`](https://github.com/astral-sh/uv/blob/HEAD/CHANGELOG.md#0914) [Compare Source](astral-sh/uv@0.9.13...0.9.14) Released on 2025-12-01. ##### Performance - Bump `astral-tl` to v0.7.10 to enable SIMD for HTML parsing ([#16887](astral-sh/uv#16887)) ##### Bug fixes - Allow earlier post releases with exclusive ordering ([#16881](astral-sh/uv#16881)) - Prefer updating existing `.zshenv` over creating a new one in `tool update-shell` ([#16866](astral-sh/uv#16866)) - Respect `-e` flags in `uv add` ([#16882](astral-sh/uv#16882)) ##### Enhancements - Attach subcommand to User-Agent string ([#16837](astral-sh/uv#16837)) - Prefer `UV_WORKING_DIR` over `UV_WORKING_DIRECTORY` for consistency ([#16884](astral-sh/uv#16884)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

samypr100 force-pushed the uv-manifest branch 4 times, most recently from 3ff4b3f to 9f20783 Compare November 30, 2025 03:43

samypr100 marked this pull request as ready for review November 30, 2025 19:16

samypr100 mentioned this pull request Nov 30, 2025

Failed to install jupyterlab-widgets==3.0.16 in Windows via symlink #16877

Closed

fix: add windows manifest to uv binaries

ccb6263

samypr100 force-pushed the uv-manifest branch from 9f20783 to ccb6263 Compare November 30, 2025 21:49

zanieb approved these changes Dec 1, 2025

View reviewed changes

zanieb added enhancement New feature or improvement to existing functionality windows Specific to the Windows platform labels Dec 1, 2025

zanieb merged commit 23b8fc9 into astral-sh:main Dec 1, 2025
163 checks passed

samypr100 deleted the uv-manifest branch December 1, 2025 20:57

konstin mentioned this pull request Dec 2, 2025

Make it easier to embed a windows manifest for long paths rust-lang/cargo#16328

Open

BrewTestBot mentioned this pull request Dec 3, 2025

uv 0.9.15 Homebrew/homebrew-core#256853

Merged

zanieb mentioned this pull request Dec 8, 2025

Broken uv tool list after updating to 0.9.15 #16949

Open

PozzettiAndrea mentioned this pull request Feb 8, 2026

feat: add Windows manifest to pixi binaries prefix-dev/pixi#5467

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Add a Windows manifest to uv binaries#16894

Add a Windows manifest to uv binaries#16894
zanieb merged 1 commit intoastral-sh:mainfrom
samypr100:uv-manifest

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