What it is: Feature Flags and Experiments now support typed variant payloads, with three schema options depending on how much structure you need. Simple types (string, number, boolean) cover most cases. Array and object types handle more open-ended structures. For highly structured payloads, you can write a full JSON Schema. Amplitude validates your payload against the schema and the schema definition itself, in real time, directly in the Variants card.

Where: Variants card in Feature Flags and Experiments. EUDC: Yes

When: Available now for all Feature Flags and Experiments customers.