An Intel Linux kernel engineer recently posted a patch to enable Flexible Return and Event Delivery (FRED) by default. This change is intended to improve performance on Linux, particularly for Intel Core Ultra Series 3 "Panther Lake" laptop SoCs. Previously, FRED was disabled by default, an "obscure nature" highlighted in recent performance reviews. Phoronix testing demonstrated that FRED can "yield greater performance" on Panther Lake. The feature contributes to overall system improvements alongside the Xe3-based Arc B390 graphics and enhanced CPU performance featured in the new Panther Lake architecture.