What the tin says: .NET 10 Release Candidate 1 is now here. This one comes with go-live support, meaning: yes, it’s ready for real production use.
https://visualstudiomagazine.com/articles/2025/09/16/net-10-rc-1-ships-with-go-live-support.aspx
Some standouts in RC1
- ASP.NET Core gets validation upgrades and OpenAPI improvements.
- EF Core 10 rolls out hybrid search in Cosmos DB and vector search in SQL Server.
- WinForms finally embraces Dark Mode.
- And there’s post-quantum crypto now in the libraries.
No flashy runtime changes, but this release is clearly about tightening up, hardening, and getting ready for primetime.
Who’s already kicking the tires on RC1? Curious how it’s performing in the wild.