Jesper Hellberg updated the diggsweden/eudiw-wallet-issuer-poc repository to achieve compliance with OID4VCI Draft 15, focusing on aligning the wallet issuer proof-of-concept with evolving standards. He restructured the credential configuration and modified the use of openid-federation-metadata to match the latest specification requirements. Jesper also renamed the credential format from vc+sd-jwt to dc+sd-jwt, ensuring consistency with current draft terminology. Working primarily in Java and leveraging his expertise in API development and standards compliance, Jesper delivered these changes in a single, cohesive feature update. No major bugs were addressed, reflecting a focused and targeted engineering effort.