- Don't create the PipeWriterStream per operation, make it per Connection
- Reduce the buffer size for CopyToAsync operations to 4K where possible instead of 81K (the default)
- Removed SendUtils.PrepareRequst and instead used HttpClient.DefaultRequstHeaders to set the common headers to apply HttpOptions to all outbound requests
- Modified how we check for the user agent request testing
Andrew Stanton-Nurse
David Fowler