Month: 2025-04. Key outcomes: Delivered Multi-piece Ads feature for privacysandbox/privacy-sandbox-demos, enabling advertisers to showcase multiple products within a single ad unit. Updated rendering to use fenced frames (replacing iframes) to improve isolation and security, and authored comprehensive documentation covering overview, design, and implementation to accelerate adoption and reduce advertiser friction. No major bugs reported this month; the focus was on feature delivery and documentation. Overall impact: Enhanced monetization capabilities and advertiser experience in the privacy sandbox demos, with a clear path for broader adoption across campaigns. Skills demonstrated: product feature planning, secure rendering with fenced frames, technical documentation, and cross-functional collaboration. Commit reference: df01c883ba73f54609f3c75889c7320d36a917b7 ("Multi piece ad - docs (#612)").