OpenBSD 8.0, released as Blowfish on a Bike on October 20, 2026, is a feature and platform-focused update that expands kernel and hardware capabilities, tightens security, and improves virtualization and graphics support. Key kernel changes include raising amd64 kernel virtual address space from 4GB to 512GB (enabling mapping of >4GB VRAM), randomizing the pmap direct map, and accelerating swap encryption with AES instructions. arm64 gains hibernate and bounce-buffer support; riscv64 adds detection of CPU extensions, vector-extension support, Advanced Interrupt Architecture drivers (imsic/aplic), and timer extension support. Graphics and DRM were updated to Linux 6.18.53 with Intel Arc A-Series support and workarounds for GuC timeouts. VMM/VMD saw major enhancements: up to 64 VCPUs per guest, improved exit handling, x2apic support, checksum offload and MSI/MSI-X virtio support, and better qcow handling.
Hardware, driver, installer, userland, and security work includes many new drivers (Samsung SABI/battery, Rockchip OTP, SpacemiT support), extensive qwx/qwz wireless fixes and 802.11n support, and numerous device additions for Intel/AMD/SoC platforms. Suspend/hibernate robustness was improved across devices and unpacking/validation was hardened to avoid overreads. Installer and pkg tooling tightened firmware update validation, limited download sizes, adjusted pkg_add behaviour, and sped syspatch handling. Security fixes address pledge, iked IKEv2 handling, libcrypto RSA‑PSS salt usage, x509 verification memleaks, and DHCP daemon robustness. Signify public keys, a detailed changelog, and an errata page are provided for verification and further details.
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