Broker API changes, week 5 2026
1 dated change from 26 Jan 2026 to 1 Feb 2026, grouped by broker or platform. Each one links the page it was read on.
Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.
A change is filed under the week that holds its own date, as its source gives it. That is not always the week this site read it. The checked date beside each source is the day that page was last opened.
Interactive Brokers
Breaking
IBKR announced a TWS and API release for 23 Feb 2026; from API 10.44, tick types 71 and 5 return size as Decimal instead of Integer.
Affected pages: the Interactive Brokers record, everything recorded for it as one file and its own RSS feed.
How to cite this
Broker API changes, week 5 2026. Broker API Hub, https://openbrokerapi.com/changes/weekly/2026-w05, newest check .
Where you rely on a single figure, cite the source and the checked date printed beside it as well.