Raspberry Pi engineers dropped candid details last week. No flagship single-board computer upgrade arrives before 2028. The reason sits in plain sight: a stubborn global DRAM shortage that has already driven multiple price hikes on existing models. Eben Upton, Raspberry Pi CEO, shared the timeline during a Reddit AMA hosted on r/engineering. He pointed to the company’s historical cadence of major releases every four to four and a half years. That math puts the successor to the 2023 Raspberry Pi 5 no earlier than early 2028. The Pi 5, he noted, will stay the flagship for years yet. Short sentences. Direct facts. The message landed clearly across tech sites that picked up the thread. OMG! Ubuntu reported the delay and the absence of dedicated AI hardware. Liliputing highlighted how RAM prices have climbed sharply, forcing cost adjustments on several boards in recent months. Expectations for the next board had run high. Many hoped for an M.2 slot, extra ports or specialized silicon for AI. Upton pushed back.…