Alpaca Trading API has introduced two new advanced order types: OCO (One-Cancels-Other) and OTO (One-Triggers-Other), which allow users to specify conditions for executing orders, such as taking profit or cutting losses. These new features enable more complex trading strategies and provide a way to automate stop-loss orders when purchasing a stock at the market price. However, conditional orders may come with increased risks due to reliance on trigger processing, market data, and other systems, which can lead to issues like system outages, missed executions, or erroneous trades. Users are encouraged to monitor these orders for reasonability and understand the associated risks before using them.