Interactive Brokers 9.20 Beta C# Client

I have completed the changes necessary for the 9.20 Interactive Brokers API. The new C# client release is version (creative versioning scheme, I know).


The beta API adds support for five second bars (similar API to the request historical bars), adds two new tick types, Shortable and Last Timestamp, adds a new current timestamp method, and updates the order status event to add a whyHeld field. The release notes are available from Interactive Brokers here.

I have updated the online documentation to the 9.20 release at

I have also included a Visual Basic sample with this release. The C# client module is fully CLR compliant, and can be accessed from any language.


So without further ado, download the latest release here.

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