.NET 9.0.21

Release

What's Changed

• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11799
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11859
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11863
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11874
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11880
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11879
• [release/9.0] Update branding to 9.0.21 by @vseanreesermsft in #11884
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11890
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11908
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11910
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11913
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11915
• Merging internal commits for release/9.0 by @dotnet-bot in #11918
• Revert "Merging internal commits for release/9.0" by @subhajitm in #11924
• Internal merge 9.0 2026 09 09 1723 by @subhajitm in #11925
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11938
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11941
• [release/9.0] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #11950
• [release/9.0] Update dependencies from dnceng/internal/dotnet-wpf-int by @dotnet-maestro[bot] in #11957

Full Changelog: v9.0.20...v9.0.21