Starting in 2026, Meta will evaluate employee performance based on their use of AI to enhance productivity. The company is promoting an AI-native culture by rewarding workers who drive significant results with AI tools and introducing an AI Performance Assistant for performance reviews.

Meta's new Lattice system integrates ad delivery across platforms, enhancing performance through better signal processing. Advertisers must focus on providing stronger first-party data and creative that drives engagement, as the system learns more quickly than most can adapt.

StyleX is Meta's new styling library that combines the benefits of CSS-in-JS with the performance of static CSS. It compiles styles at build time into atomic CSS, reducing file size and resolving common CSS issues like collisions and specificity wars. The system is now the standard for styling across Meta's products and other companies.