Update out-of-support.md to reference .NET 10.0

[Copilot]

Updates version references in the out-of-support warning include file from .NET 9.0 to .NET 10.0.

Changes:

• Updated display text from ".NET 9 version" to ".NET 10 version"
• Updated view parameter from aspnetcore-9.0 to aspnetcore-10.0

This include file is used throughout the documentation to warn users viewing deprecated versions and direct them to current documentation.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Update out-of-support.md from 9.0 to 10.0 in aspnetcore/includes</issue_title>
<issue_description>Update the version references in aspnetcore/includes/out-of-support.md to reflect that .NET 10.0 is now the current version (instead of 9.0).

Task:

• Change all mentions of 9.0 to 10.0 in aspnetcore/includes/out-of-support.md.
• Ensure any documentation in the file reflects support notes for 10.0 according to current policy.
• Review formatting and update any related support statements if needed.

File to change:
aspnetcore/includes/out-of-support.md

---

This update maintains accurate support information for ASP.NET Core documentation users following the 10.0 release cycle.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Update out-of-support.md from 9.0 to 10.0 in aspnetcore/includes #36444

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[wadepickett]

Approved. Thanks!