API: FEATURE: Multiple attributes can now be created or updated in a single request via PUT, POST, and PATCH (all with different behaviors).
v2.0: Webhooks now include the coupon_details and discount_details nodes.
v2.0: Webhooks now available for capture, void, and refund transaction actions. (NOTE: This functionality is only available for select stores currently.)
v2.0: Bug fix to use the correct language customizations in situations where multiple template sets have the same language, but different customizations.
v2.0: Deprecating the legacy XML webhook. If it’s not already enabled for a store, it won’t be visible in the admin.
v2.0: Security improvement with template caching.