Update changelog

Author: stakx

CHANGELOG.md

@@ -5,8 +5,12 @@
 Enhancements:
 - Now target frameworks are: .NET 8, .NET Framework 4.6.2, .NET Standard 2.0
 - Tests platforms now are: .NET Framework 4.6.2, .NET 8, .NET 9
+- Minimally improved support for methods having `ref struct` parameter and return types, such as `Span<T>`: Intercepting such methods caused the runtime to throw `InvalidProgramException` and `NullReferenceException` due to forbidden conversions of `ref struct` values when transferring them into & out of `IInvocation` instances. To prevent these exceptions from being thrown, such values now get replaced with `null` in `IInvocation`, and with `default` values in return values and `out` arguments. When proceeding to a target, the target methods likewise receive such nullified values. (@stakx, #665)
 - Dependencies were updated
 
+Bugfixes:
+- `InvalidProgramException` when proxying `MemoryStream` with .NET 7 (@stakx, #651)
+
 Deprecations:
 - .NET Core 2.1, .NET Core 3.1, .NET 6, and mono tests
 - .NET Standard 2.1 tfm