.NET agent v8.25.214.0

Thread profiling support for Linux
Thread profiling on Linux will be supported on .NET Core 3.0 or later applications when running .NET agent version 8.23 or later. Triggering a thread profile is done from the Thread profiler page in APM.
Accessing Span-Specific information using the .NET Agent API
New property, CurrentSpan has been added to IAgent and ITransaction. It returns an object implementing ISpan which provides access to span-specific functions within the API.
Adding Custom Span Attributes using the .NET Agent API
New method, AddCustomAttribute(string, object) has been added to ISpan.
- This new method accepts and supports all data-types.
- Further information may be found within .NET Agent API documentation.
- Adding custom attributes to spans requires distributed tracing and span events to be enabled. See .NET agent configuration

Fixes issue where adding multiple custom attributes on a Transaction using ITransaction.AddCustomAttribute causes the agent to ignore additional attempts to add custom attributes to any transaction.
Fixes issue that prevented Custom Events from being sent to New Relic until the agent shuts down.
Fixes issue that can cause asynchronous Redis calls in an ASP.NET MVC application to report an inflated duration.

Follow standard procedures to update the .NET agent.
If you are upgrading from a particularly old agent, review the list of major changes and procedures to upgrade legacy .NET agents.