Update the Xero-Net wrapper
At the time of this writing, the Xero-Net wrapper hasn't been updated for 3 months, during which time 8 updates to the API have been released.
We've moved from Xero-Net our OAuth 1.0a SDK to Xero-NetStandard for OAuth 2.0. This new SDK is generated from our OpenAPI specs and is kept up to date as issues are filed and our specification is updated.
The most recent release was 4 days ago.