Hebrus 0.3.0

Hebrus 0.3.0

Hebrus 0.3.0 is the first source release under the Hebrus name. It provides a
Metal-first inference engine for a deliberately small set of qualified MoE
artifacts on Apple Silicon, including bounded SSD expert streaming where the
runtime support contract admits it.

This release contains source and provenance files only. It does not contain
prebuilt engine binaries, model weights, or a Hebrus Studio application bundle.

Highlights

• Canonical hebrus, hebrus-server, hebrus-agent, hebrus-bench, and
  hebrus-eval commands; the corresponding ds4* names remain same-binary
  compatibility aliases in this release.
• Machine-readable schema-1 --capabilities=json output across all five roles.
• Staged installation with versioned Metal resources and executable-relative
  shader discovery.
• Stable Qwen3.6 MLX Affine4/group-64 support plus an explicit, nonrecommended
  Q2_K_XL Beta profile.
• Corrected Qwen resident 2–31-token routed-MoE reduction, with complete
  synthetic boundary coverage at 1, 2, 25, 31, and 32 rows.
• Deterministic, fail-closed source bundle generation and verification.

See the versioned release notes,
changelog, and
runtime support contract.

Source and provenance

• Tag target: 463eaa068d1a06142d03245955fd47299c20fa81
• hebrus-0.3.0.tar.gz: 97a6886de0d065ad156a13ea0e839dc7821120e4b3d440dbfba98967d950c00f
• hebrus-0.3.0-source.json: 77bf1ad80fdbe49559358e593b248989dd232ad0fae5ea762bd1c80606f47b2c

Download all three source assets together and verify them with:

shasum -a 256 -c SHA256SUMS

The manifest records the complete source commit, 12-character build identity,
commit timestamp, archive size, member count, and archive SHA-256.

Validation

• Exact-tag Linux and macOS CI: run 31900639931
• Exact-tag hosted source build and smoke install: run 31900789732
• Exact-tag source-bundle smoke: PASS locally, including byte-identical rebuild,
  manifest verification, staged install, aliases, and installed Metal resources.
• Local make premerge: PASS on code parent
  a202f7fb85acddd870f1e1a1a803718cfdfa1945 on Apple M5 Pro, 64 GiB,
  macOS 26.5.2 (build 25F84). The tag target differs only in the three recorded
  publication-date fields and passes the release-metadata and source-bundle gates.
• Stable Qwen Affine4 resident server gate: PASS on code parent
  a202f7fb85acddd870f1e1a1a803718cfdfa1945 on both hebrus-server and
  ds4-server; exact 25-token layer-major path; two exact
  HEBRUS ALIAS PARITY OK responses per persistent process; clean shutdown;
  evidence bundle SHA-256
  32f1ba6657daa688709a897c248737a03e0e4f1e1b67a1e1b8322408a3a645e4.
• Qwen Q2_K_XL Beta exact-artifact alias gate: PASS on the same code parent;
  artifact size 12290632032 bytes and SHA-256
  30c22f70aff0f05986b517ee4ad8fef554a1b5aab6971c9ca09f999566d30143;
  explicit resident mode exercised the 25-token short-prefill frontier through
  both hebrus-server and ds4-server, with two exact
  HEBRUS ALIAS PARITY OK responses per process and clean shutdown; report
  SHA-256 502b398ce3def2033ba090cf93ae3c74bee59bc4153d77ed2e050c39577f77b4.
• DeepSeek V4 Flash exact-artifact release smoke: SKIPPED by maintainer
  release decision. The exact 86720114272-byte artifact was not available
  locally; the available 0731 variant is 32 bytes shorter and byte-different,
  so no result from it is attributed to this release.
• GLM 5.2 exact-artifact functional smoke: PASS on the same code parent;
  artifact size 262147193504 bytes and SHA-256
  7f5017e3076e706c78f2a5322b035a9e2f6519c65ff5b6be8b2d91aeff61505d;
  AUTO resolved the qualified SSD path, completed all 288 prompt tokens and
  32 greedy decode tokens with zero swap; log SHA-256
  6a3fe1524956611520583cb7fd650de29e1cb79750bb606dbaa633437e421ee1.

No performance claim is derived from the functional alias gates. Historical
benchmark numbers remain scoped to their linked artifact, commit, hardware,
context, and runtime mode.

Current limits

• Beta, source-built software for Apple Silicon and Metal.
• Not a general GGUF runner: only exact artifacts in the support contract are admitted.
• CPU is reference/debug only; CUDA, ROCm, and distributed inference are not shipped.
• Qwen Q2_K_XL remains Beta and is not full-window qualified.
• The Qwen 24 GiB lane remains a publication candidate pending its physical sustained gate.
• The local server has no built-in authentication and should not be exposed to untrusted networks without an authenticated layer.
• hebrus-agent remains alpha.

Hebrus retains substantial implementation and history from
antirez/ds4. See
acknowledgments
and third-party notices.