Add What's new in 10 to the TOC

[tdykstra]

Description

Add What's new in 10 to the TOC

Page URL

https://learn.microsoft.com/en-us/aspnet/core/release-notes/aspnetcore-10?view=aspnetcore-9.0

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/release-notes/aspnetcore10.md

Document ID

4e75ad25-2c3f-b28e-6a91-ac79a9c683b6

Article author

@Rick-Anderson

Metadata

• ID: 4e75ad25-2c3f-b28e-6a91-ac79a9c683b6
• Service: aspnet-core
• Sub-service: release-notes

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Associated WorkItem - 370656