Double the RAM, Half the Stress: Raspberry Pi 4’s Secret Design Overhaul to Combat the 2026 Memory Crisis

Raspberry Pi announced a revised Model 4B featuring a dual-memory module design to counter rising DRAM costs while maintaining full software/peripheral compatibility and equivalent performance; the update introduces a new bootloader (`pieeprom-2026-01-09.bin`) and may extend across the product line, with users advised to run the latest Linux kernel or Raspberry Pi OS and identify the dual-memory revision via an extra RAM chip on the PCB, a “Raspberry Pi 2025” marking, and `cat /proc/cpuinfo` showing Revision 1.5.