downloads

Releases

hal0 is pre-1.0. The active development line ships as pre-release builds; the last cut marked stable is below. Pick the channel that matches your appetite for change.

current dev line

v0.8.5b2

released 2026-07-04

The newest pre-release. Tracks the work documented across the site. Not GA — expect breaking changes between alphas.

what's new → github release ↗
last stable

0.9.7

released 2026-07-11

The most recent release cut without a pre-release tag. Older and more settled than the dev line.

changelog → all releases ↗

Install

One command on a fresh Linux x86_64 host (Python ≥3.12). AMD (ROCm/Vulkan) is the first-class path; NVIDIA/CUDA support is experimental.

fresh install
sh 
curl -fsSL https://hal0.dev/install.sh | bash

Upgrade & rollback

Self-update verifies a cosign-signed tarball and swaps the current symlink atomically. Two channels:

stable channel
sh 
hal0 update --channel stable
nightly channel
sh 
hal0 update --channel nightly

Reverts in one step: hal0 update --rollback. See the update & rollback guide.

changelog

Read the full history

Every version, newest first — breaking changes, new features, and fixes.

full changelog → all github releases ↗