FEX has released its August update, FEX-2608, focusing on improving memory safety and Windows compatibility for its x86-on-ARM emulator, processing around 331 commits. The update addresses a critical bug in the 64-bit memory allocator that caused silent data corruption, fixes JIT guard page handling, and improves AVX signal state management. Additionally, it enhances Windows support with a corrected VirtualProtect call and introduces power-efficient thread-suspend spinloops, benefiting battery life on ARM devices. The release also removes the deprecated FEXInterpreter binary and continues a steady monthly update cadence, ensuring ongoing development and user support

FEX-2608 Released: Memory Fix and Better Wine Support for x86-on-ARM Emulation

FEX has shipped its August update, FEX-2608, after processing roughly 331 commits focused on memory safety and Windows compatibility. The release fixes a critical 64-bit allocator bug that was silently overwriting regions, while also patching JIT guard page handling and AVX signal state corruption. Windows support improves through a fixed VirtualProtect call and power-efficient WFE spinloops that lower battery drain on ARM laptops. Meanwhile, the project fully drops the deprecated FEXInterpreter binary and maintains its steady monthly cadence alongside Box64.

FEX-2608 Released: Memory Fix and Better Wine Support for x86-on-ARM Emulation @ Linux Compatible