The iPhone keyboard has been a mess for months. Typing quickly produced constant typos and mis-inputs that made texting feel broken. You'd type one thing and your iPhone would register something completely different, inserting wrong letters or missing keystrokes entirely.
iOS 26.4 finally fixes the underlying bug that caused these typing problems. The software update stops the keyboard from registering incorrect inputs when you type quickly. But there's a second problem the update doesn't automatically solve: your iPhone has been learning your typing patterns the entire time the bug existed, which means it saved all those typos as if they were intentional.
