From 2748361c948cfc1a4dff101bfdfc674d8eccee22 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Thu, 20 Nov 2025 13:27:13 -0800
Subject: [PATCH] Document Debian 13 TAR header warnings in .NET 10.0 known
 issues (#10171)

* Initial plan

* Add Debian 13 TAR header warning to 10.0 known issues

Co-authored-by: richlander <2608468+richlander@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: richlander <2608468+richlander@users.noreply.github.com>
---
 release-notes/10.0/known-issues.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/release-notes/10.0/known-issues.md b/release-notes/10.0/known-issues.md
index f68cd992c..3337704c0 100644
--- a/release-notes/10.0/known-issues.md
+++ b/release-notes/10.0/known-issues.md
@@ -89,3 +89,9 @@ SDK and runtime installers for macOS install a `createdump` binary that lacks th
 
 - Add the executable bit to `shared/Microsoft.NETCore.App/10.0.0/createdump` manually using `chmod +x`
 - Use another runtime hosting mechanism (self-contained app, use a tarball installation of the runtime/SDK)
+
+## Debian 13 packages work but display TAR header warnings
+
+.NET 10.0 packages for Debian 13 (Trixie) are functional and install successfully. However, during installation, users may see multiple warnings like `W: Unknown TAR header type 120`. These warnings are cosmetic and do not affect the functionality of the installed .NET SDK or runtime. We are actively working to resolve these warnings in a future update.
+
+For installation instructions, see [Install .NET on Debian](https://learn.microsoft.com/dotnet/core/install/linux-debian).