OpenBSD 8.0 was officially released on October 20, 2026, marking the project's 61st release. The team highlighted OpenBSD's record of more than thirty years with only two remote holes in the default install.
Platform-specific improvements include raising the amd64 kernel virtual address space from 4G to 512G, adding pmap(9) direct map randomization, and speeding up swap encryption via AES CPU instructions. On arm64, hibernate support was added along with bounce buffers and swap encryption speedups. The luna88k port received fixes for m88k CMMU register writes and fault handling. RISC-V 64 gained CPU extension detection, vector extension support, and Advanced Interrupt Architecture drivers.
Kernel improvements addressed memory size calculation, semaphore id handling, and inactive page queue heuristics. Suspend and hibernate support was expanded for qwz(4), ufshci(4), and bytgpio(4) devices. The Direct Rendering Manager was updated to Linux 6.18.53 with Intel Arc A-Series graphics support.
VMM and VMD improvements include MP support for up to 64 VCPUs per guest VM, x2apic mode support, and refactored exit handling.
Source: Hacker News · Summarized by HeadlinesBriefing