https://www.marqeta.com/docs/developer-guides/release-notes/rss.xml
Marqeta rolls out Card Issuing and Processing platform releases in phases.
If you don’t see a feature in your environment yet, you will after Marqeta updates your environment to the new version.
Platform release numbers, such as V.2026.8.31.0, identify the release, not the date it becomes available.
Dispute case transition webhooks
Marqeta has created webhook events for dispute case transitions, eliminating the need for continuous API polling and enabling real-time notifications for dispute case updates.You can now subscribe tocasetransition.* events to receive instant notifications when dispute cases change status. The following event types are available under casetransition.* events:Self-service credential API
Marqeta has added a self-service credential API to the CoreAPI authentication functionality. The self-service credential API allows you to create and manage the admin access tokens that authenticate users of a given application. Using theself endpoint, you can create up to 20 admin access tokens per application, manage credential rotation using expiration policies, as well as retrieve and delete admin access tokens.This functionality is currently in limited release. Contact your Marqeta representative if you would like to add it to your program.For further information, see the Self-Service Credentials page.