Arc XP Launches Compass: A Home Page That Knows Who's Reading It, and a Newsroom That Still Decides What Leads

Arc XP Compass recognizes a returning reader, remembers what they read last, and shows them what they missed. Editors still decide what leads.

WASHINGTON, Sept. 21, 2026 /PRNewswire/ -- Arc XP, the media technology platform built inside The Washington Post, launched Arc XP Compass, a personalization engine for news home pages and section fronts. Arc XP Compass tells a returning reader from a first-time one, remembers what each read last, and rebuilds the page around it. It is the experience Instagram and TikTok trained a generation to expect, applied to news. The difference is who sets the priorities: editors still decide what leads.