Concise monthly summary for March 2026 focusing on business value and technical achievements with the primary feature delivered in the Keycloak repository.

November 2025 focused on improving the robustness and reliability of SD-JWT validation within the Keycloak repository. The primary deliverable was clock-skew tolerant time checks for issued-at and expiration claims, enhancing verification accuracy in real-world environments with minor clock drift. This work strengthens OIDC/OIDC4VCI interoperability and reduces validation-related incidents in production.

October 2025 monthly summary for keycloak/keycloak focusing on Verifiable Credentials integration at the Authorization Server metadata layer. Delivered support for authorization_details_types_supported and ensured include of openid_credential within metadata, with corresponding updates to OIDC configuration representation and processing to enable verifiable credentials workflows. Commit referenced: ea06651da5ba74f72297318dacfeaebeb9adfee3. This work enhances interoperability with VC ecosystems and positions the project for broader adoption of verifiable credential-based authorization flows.

September 2025 Monthly Summary – keycloak/keycloak Key features delivered: - Verifiable Credential JWT Attestation Support: Adds support for key attestations in JWT proofs, including validation of attestation proofs, verification of cryptographic keys and resistance levels, and extending JWT proof validation to incorporate attestation details. Major bugs fixed: - No major bugs fixed documented for this month in the provided data. Overall impact and accomplishments: - Strengthened trust in identity proofs by enabling attestation-aware JWT validation, improving security posture and compliance readiness for verifiable credential workflows. - Accelerated enterprise adoption by aligning Keycloak's JWT flow with verifiable credential standards and attestation-based access scenarios. Technologies/skills demonstrated: - JWT, verifiable credentials, cryptographic key validation, attestation proofs, secure token validation patterns, and incremental code changes in a large repository (Keycloak).

January 2025: Delivered modular credential signing capabilities for Keycloak's OID4VC issuer, replacing the monolithic VerifiableCredentialsSigningService with a flexible CredentialSigner and ProofValidator architecture. This refactor enables support for diverse credential formats and proof types while improving maintainability and onboarding velocity for new features and formats.

Month: 2024-12. Delivered a key refactor for verifiable credential issuance in keycloak/keycloak, introducing dedicated credential builder providers for JWT_VC, LDP_VC, and SD_JWT_VC, and updating the OID4VCI issuer endpoint to dynamically load and use the appropriate builder based on the requested VC format. This modularization improves maintainability and accelerates future format support, reducing coupling between formats and centralizing format-specific logic to streamline testing and extension. Notable commit: offload format-specific credential building to dedicated credential builder providers (#32951) (#35046).

Month: 2024-10 — Concise monthly summary focusing on key accomplishments, business value, and technical achievements for the Keycloak project.