openbsd

Work on GEFS (Good Enough File System) for OpenBSD continues to progress, with Ori Bernstein posting updates on error handling, ported bugfixes, userspace tools, and remaining consistency protocol challenges to the openbsd-tech list.

OpenBSD Jumpstart 8.0 is a concise quick-start guide for new users covering installation, PF firewall, networking configuration, and daily administration of the security-focused OpenBSD operating system.

OpenBSD 8.0 has been released as the project's 61st version, adding Intel Arc graphics support, a 512GB kernel virtual address space on AMD64, ARM64 hibernation, RISC-V improvements, and updates to LibreSSL and OpenSSH while maintaining its long-standing security record.

OpenBSD 8.0, the 61st OpenBSD release, was announced on October 20, 2026 with platform improvements for amd64, arm64, riscv64 and sparc64, including larger kernel virtual address space, hibernate support, RISC-V vector/Advanced Interrupt Architecture support, and a switch to the LLVM toolchain on sparc64.

OpenBSD 8.0 将引入来自 Linux 6.18 的 inteldrm/radeondrm/amdgpu 图形驱动（含 Intel Arc A 系列支持），并将 Clang/LLVM 22 设为基础编译器，同时带来 vmm/vmd 64 VCPU 客户机、新 WiFi 驱动与 httpd 新特性等多项更新。

A collective effort has produced a working port of Wine to OpenBSD, with dozens of 64-bit Windows applications—including The Witcher 3 remaster—running successfully, though 32-bit WoW64 software remains unsupported.

A detailed write-up on fixing an OpenBSD boot hang on an HP Envy 17-DA0013dx laptop, which turned out to be caused by a defective ACPI/AML implementation resolved by a BIOS update.

安全研究公司 Calif 披露了一个存在于 OpenBSD 中、可追溯至 37 年前原始 BSD 源码的内核漏洞：共享内存附加计数器（shm_nattch）为有符号 16 位 short，通过反复 fork 可导致整数溢出，结合竞争条件引发的 use-after-free 和一处越界写，最终在启用 KARL/SMAP/SMEP 的情况下实现本地提权至 root。相关补丁已通过 OpenBSD errata 026 和 018 修复。

作者分享了如何用 C 语言和 CGI 协议构建并部署一款现代商业 Web 产品（marketyour.games）：单个静态链接二进制、SQLite 文件、仅三个依赖库，无框架、无容器，部署即替换文件、零停机。文章论证了在 2026 年用 C + OpenBSD httpd + SQLite（BCHS 栈）写真正的生产级 Web 应用依然可行且极具简洁性。

OpenBSD's ports tree rejects the inclusion of uutils-coreutils, a Rust rewrite of GNU coreutils, citing concerns about compatibility and licensing, while maintaining the existing GPL-based GNU coreutils.

This article discusses the OpenBSD errata process, detailing how vulnerabilities are reported and patched in the OpenBSD operating system.

An early preview of GEFS, a crash-safe and snapshotting file system, has been ported to OpenBSD. The port is experimental with several issues but is open for community testing.

This article explains how to use the m4 macro processor to reduce repetitive code in OpenBSD's httpd configuration by creating custom macros.

The article provides a step-by-step guide on setting up OpenBSD on DigitalOcean for $4 per month, covering the process from downloading the OS image to creating and configuring a droplet.

The author details migrating their static websites from Codeberg Pages to an OpenBSD VPS due to performance issues, covering setup processes and personal experiences.

A blog post detailing the ongoing revival and modernization of OpenBSD's relayd(8) and httpd(8) daemons, including efforts to modernize the imsg message system and address pending diffs, with the author citing LLMs as motivation to return to C programming.

A step-by-step guide to setting up a self-hosted web server on OpenBSD using httpd and WireGuard to tunnel through a VPS for IP hiding.

Game of Trees is a version control system from OpenBSD developers that prioritizes simplicity and uses Git repositories. Version 0.127 was released in July 2026.

A use-after-free vulnerability in OpenBSD through version 7.9 allows local attackers to escalate privileges to root. The flaw exists in sysv_sem.c and is identified as CVE-2026-57589.

The article discusses the final implementation of anti-return-oriented programming mitigations in OpenBSD.