release: 0.68.0

[noahgift]

Release bump for 0.68.0 (APR-RELEASE-001 §4 T-0): bump-version.sh 0.68.0 across every workspace incl. the facades, and the CHANGELOG [0.68.0] section (89 merged PRs since v0.67.0 + #3405, merged before this bump; the full curated list is in CHANGELOG.md).

Qwen 3.5 runs on the CPU. Qwen3.5 / Qwen3.8 hybrid GGUFs (Gated DeltaNet + attention) load and generate through apr run and apr chat (#3114, closes #3091), backed by a reproducible llama.cpp d1d3c3396 raw-logit reference and a three-PR parity evidence series (#3354, #3355, #3356): strict greedy equality is a near-tie under a margin gate, with every divergence llama.cpp's choice at realizar's rank 2 within 0.19 logits; Q8_K activations and f16 KV parity is 0.69 work (#3208). One-line install. curl -LsSf https://raw.githubusercontent.com/paiml/aprender/main/scripts/install.sh | sh resolves the release asset for the host, verifies its sha256 and puts apr on PATH (#3366). The release train itself hardened: the crates.io cascade refuses unless clean-room.yml is green on exactly the tag commit (#3335, #3357); the merge queue gained the unwedge rules (#3361, #3403) and the roadmap became fragment-per-entry so PRs stop colliding on one file (#3297, #3352); the apr chat exit code is honest on a failed generation (#3396); and a MoE loader refuses an unsupported expert quantization at load instead of at the first token (#3405, 0.69).

When this merges, rel-068-autopilot/autopilot.sh 3406 wait close runs the rest of the train, fail-closed: T-1 deep run, pre-publish dogfood, tag + release, clean-room.yml dispatched on the tag with the run id recorded (T-3), all release assets checked with scripts/check_release_assets.sh, publish preflight, the crates.io cascade (T-4, automated), install.sh --version v0.68.0 receipts on intel and gx10 plus the CUDA asset receipts on gx10 and yoga, epic and milestone close.

no-close: #3091 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3114 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3208 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3297 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3335 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3352 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3354 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3355 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3356 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3357 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3361 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3366 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3396 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3403 — referenced by the 0.68.0 release notes; the bump PR closes nothing.
no-close: #3405 — referenced by the 0.68.0 release notes; the bump PR closes nothing.

🤖 Generated with Claude Code

[github-actions]

§13.11 rung 1 — quorum shadow verdict

S13-SHADOW pr=3406 head=4a7e89b42fe9521cbe4ae89ca7e6a6e783507a18 verdict=REFUSE class=Q1 arm_rc=1

Shadow mode: this records a verdict and merges nothing. A refusal
to arm is not a block (§13 adds zero rows to §7) — the pull request is
exactly as green as it was.