Summary of Completed Maintenance

Maintenance yesterday, November 9th, went off without a hitch. This update was to increase trading capacity and improve behavior under high load. A list of changes:

• Our trading engine was upgraded to a more modern server with faster, newer CPUs. This has improved overall latency and queue depth.

• Load-shedding has been implemented. If the trading engine's queue depth grows beyond an internal threshold, new requests will be immediately refused with a503until the queue shrinks again. Order cancellations are not subject to this restriction.

• We have quadrupled capacity on the subsystem responsible for user authorization and API keys. This is a future-proofing measure and is unlikely to be noticed by users.