Description: You can now include cart properties as filters when creating custom events! This makes it easier than ever to define custom event logic based on what's in the user’s cart — think product IDs, quantities, prices, or categories.

Why: Previously, customers couldn’t use cart-level properties when defining custom events, limiting their ability to tailor event definitions around commerce behavior. With this change, teams can now construct more precise, expressive custom events — for example, creating an event for “cart contains product X.” This unlocks richer downstream analysis and conversion funnel tracking for commerce-focused teams.

Customers: This is especially valuable for retail and e-commerce customers, but any team using object array properties will benefit.