The date on your product page
Update Recency
“Updated” sits on every App Store product page, and a date two years old reads as abandoned to someone deciding whether to install. This puts yours next to the 25 apps you share a search result with.
Why the date matters
It is one of the few signals a prospective user can read without installing anything, and it sits directly on the product page. In a sampled search the spread was stark — the active apps had shipped within ten days, the neglected ones two to five months earlier. Whichever side you are on, it is visible.
Got something to ship? The release notes writer turns a changelog into the What’s New copy that goes with it.