In October 2025 Google deprecated the Topics API and most of the Privacy Sandbox advertising stack. Programmatic platforms scrambled to switch their primary signal from third-party cookies to contextual + server-to-server (S2S) conversion APIs, which is exactly how native has always worked.
The other 2026 shift: agentic buying. AI systems autonomously managing audience selection, bid strategy, creative rotation and budget pacing across the full campaign. Programmatic DSPs leaned in fastest. Native platforms (Taboola, Teads) added agentic features through the year but kept the human-in-the-loop default because direct-response operators still want manual control of daily creative.
Net effect: the two channels are converging at the infrastructure layer (both contextual, both S2S-tracked, both increasingly AI-bid) but diverging at the creative layer, native rewards editorial advertorials, programmatic rewards short-form video + display.