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Merged
dotnet-policy-service merged 1 commit into from
May 11, 2026
Merged

Merge main into live #12611

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10 changes: 9 additions & 1 deletion xml/System.IO/Directory.xml
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Expand Up @@ -505,7 +505,15 @@ An I/O error occurred.</exception>
<param name="prefix">An optional string to add to the beginning of the subdirectory name.</param>
<summary>Creates a uniquely named, empty directory in the current user's temporary directory.</summary>
<returns>An object that represents the directory that was created.</returns>
<remarks>To be added.</remarks>
<remarks>
<format type="text/markdown"><![CDATA[

## Remarks

This method creates a new directory with a unique name under the path returned by <xref:System.IO.Path.GetTempPath*>. On Unix-like operating systems, the parent temporary directory might be shared among all users, whereas the directory created by <xref:System.IO.Directory.CreateTempSubdirectory*> is created with owner-only permissions (`700`).

]]></format>
</remarks>
<exception cref="T:System.ArgumentException">
<paramref name="prefix" /> contains a directory separator.</exception>
<exception cref="T:System.IO.IOException">A new directory cannot be created.</exception>
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12 changes: 9 additions & 3 deletions xml/System.IO/Path.xml
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Expand Up @@ -2203,11 +2203,14 @@ If the current Windows version exposes the [`GetTempPath2`](https://learn.micros

On Windows versions that don't expose GetTempPath2, this method instead invokes the [`GetTempPath`](https://learn.microsoft.com/windows/win32/api/fileapi/nf-fileapi-gettemppathw) Win32 API and returns the resolved path. For more information on how this resolution is performed, including how to control the return value through the use of environment variables, see [the _Remarks_ section](https://learn.microsoft.com/windows/win32/api/fileapi/nf-fileapi-gettemppathw#remarks) of the GetTempPath documentation.

# [MacOS](#tab/macos)
# [macOS](#tab/macos)

If the `TMPDIR` environment variable has been set, this method returns the value specified by that environment variable. MacOS sets `TMPDIR` on login to a per-user temporary directory.
If the `TMPDIR` environment variable has been set, this method returns the value specified by that environment variable. macOS sets `TMPDIR` on login to a per-user temporary directory.

Otherwise, this method returns `/tmp/`.
Otherwise, this method returns `/tmp/`, which is shared among all users.

> [!CAUTION]
> If your application needs a private temporary directory, use <xref:System.IO.Directory.CreateTempSubdirectory*>, which creates a subdirectory with owner-only permissions (`700`).

# [Linux](#tab/linux)

Expand All @@ -2216,6 +2219,9 @@ If the `TMPDIR` environment variable has been set, this method returns the value
Otherwise, this method returns `/tmp/`.
The `/tmp/` directory on Linux is commonly shared among all users (`1777` permissions); ensure this meets your application's security needs.

> [!CAUTION]
> If your application needs a private temporary directory, use <xref:System.IO.Directory.CreateTempSubdirectory*>, which creates a subdirectory with owner-only permissions (`700`).

---

## Examples
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