Ad Tech Briefing: Agentic AI, interoperability and control dominate Cannes Lions announcements

The 2026 Cannes Lions Festival of Creativity coincided with a “red weather warning” to note dangerously high temperatures across much of continental Europe, a climatic phenomenon that reflects the pace of competition as the ad industry meets at its annual flagship gathering.

Of course, it wouldn’t be a trade show without a host of announcements from some of the industry’s leading lights, and since you’re most likely busy, Digiday decided to offer you a quick rundown of those most pertinent to the ad tech beat.

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Author: Ronan Shields

Search & Affiliate Marketing Strategist since 1993