# API Difference 9.0-preview1 vs 9.0-preview2

API listing follows standard diff formatting.
Lines preceded by a '+' are additions and a '-' indicates removal.

* [System](9.0-preview2_System.md)
* [System.IO](9.0-preview2_System.IO.md)
* [System.Net.Http](9.0-preview2_System.Net.Http.md)
* [System.Numerics](9.0-preview2_System.Numerics.md)
* [System.Runtime.Intrinsics](9.0-preview2_System.Runtime.Intrinsics.md)
* [System.Runtime.Intrinsics.Arm](9.0-preview2_System.Runtime.Intrinsics.Arm.md)
* [System.Runtime.Intrinsics.X86](9.0-preview2_System.Runtime.Intrinsics.X86.md)
* [System.Security.Cryptography.X509Certificates](9.0-preview2_System.Security.Cryptography.X509Certificates.md)
* [System.Text.Json](9.0-preview2_System.Text.Json.md)
* [System.Text.Json.Serialization](9.0-preview2_System.Text.Json.Serialization.md)
* [System.Threading](9.0-preview2_System.Threading.md)

