OpenBSD 8.0
- ID
- 37306
- Status
- summarized
- Published
- 20 Oct 2026, 10:06 AM
- Fetched
- 20 Oct 2026, 5:19 PM
- Provider
- Hacker News
- Category
- dev-community
- Original URL
- https://www.openbsd.org/80.html
- Source URL
- https://hnrss.org/best
Summary
- Score
- 4.0
- Created
- 20 Oct 2026, 5:20 PM
- Tags
- Audience
- developers
What happened
OpenBSD 8.0, the 61st release, raises the amd64 kernel virtual address space from 4G to 512G and places the pmap direct map at a random location. arm64 gains hibernate support, riscv64 adds kernel support for the 'V' vector extension and RISC-V Advanced Interrupt Architecture, and sparc64 switches to the LLVM toolchain. The release also retires loongson support and includes suspend/resume fixes for ufshci(4) on the Samsung Galaxy Book4 Edge and HONOR MagicBook Art 14 Snapdragon.
Why it matters
If you run or maintain OpenBSD on amd64, the 4G-to-512G kernel VA jump and randomized direct map can expose assumptions in kernel modules or memory-layout-dependent tooling, so revalidate those before upgrading. For arm64 laptop users, the only daily-use changes here are hibernate support and ufshci(4) suspend fixes on the two named Snapdragon models; otherwise this is a low-priority release for general developers.
Discussion angle
Does the 512G amd64 kernel VA bump plus randomized direct map make OpenBSD more practical for large-memory hosts, or does it make kernel-module debugging harder?