chore: release 0.20.27 - #781
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Cut as 0.20.27 rather than 0.20.26: a separate stopgap "C++ desktop kits" release (draft, tag v0.20.26, PR #776) already claims that tag and explicitly asks that it not be retargeted, naming 0.20.27+ as the next real SDK train. Discovered mid-flight by an independent audit pass; the in-progress v0.20.26 release build was cancelled before it collided with that draft, and the v0.20.26 tag was left untouched from that point on. Ships the full engine-artifact pipeline from tonight's work: NeuRT and QHexRT as pinned prebuilt archives from the private neurun repo, the QAIRT/QNN runtime the Hexagon engine depends on at execution time as its own private pinned artifact (briefly public for a few hours, moved back to private), and check_qairt_pairing.sh guarding the two pins against drift. Also folds in an independent adversarial audit's confirmed findings: stale "public QAIRT" comments left behind by the public->private move (in three files), a real bug in the QAIRT release-content gate section (its .sha256 sidecar comparisons failed on byte-identical hashes because publish-qairt-runtime.sh wrote shasum's default "hash filename" format while every other sidecar in this pipeline is bare-hash -- fixed the publisher, hardened the gate's parser to extract the first field regardless, and re-uploaded corrected sidecars), the hand-staged-path guard extended to cover QAIRT/RA_QNN_RUNTIME_DIR, and a "latest" release-marker mixup on the private neurun repo (publishing the QAIRT runtime there marked IT latest instead of the real engine release -- fixed and documented as a standing trap in that repo's release skill). Changelog prose is hand-written per Flutter package, as always.
sanchitmonga22
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release:patch
📝 WalkthroughWalkthroughThe release increments the SDK train from Changes0.20.27 Version Release
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to The release changes engine artifact validation, but the current validation scripts can miss a valid QAIRT staging path or check pins against the wrong repository, allowing an incorrectly assembled release to pass. These bounded correctness issues should be fixed or explicitly accepted before merging. Sequence Diagram(s)sequenceDiagram
participant BuildScript
participant PrivateRelease
participant ValidationGate
BuildScript->>PrivateRelease: request pinned QAIRT runtime with credentials
PrivateRelease-->>ValidationGate: return platform archives and checksum files
ValidationGate->>ValidationGate: verify version, tag, and SHA-256 values
ValidationGate-->>BuildScript: approve runtime or use fallback shell
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
📝 Generate docstrings
🧪 Generate unit tests (beta)
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Inline comments:
In `@scripts/build/_release_asset.sh`:
- Around line 17-22: Update the caller documentation near fetch_release_asset to
state that callers require a non-empty NEURUN_TOKEN or GH_TOKEN, including the
GH_TOKEN fallback supported by download-qairt-runtime.sh and
check_engine_prebuilt_pins.sh.
In `@scripts/validation/gates/check_engine_prebuilt_pins.sh`:
- Around line 146-150: Update HANDSTAGE_RE to match staged QAIRT version paths
containing the platform component between qairt-runtime and versions, while
accepting both forward- and backslash separators; preserve the existing
literal-path and other prebuilt pin checks.
- Around line 260-263: Update the QAIRT release validation flow around
qairt_listing and the checksum download at the referenced lower-level operation
to resolve QAIRT_RUNTIME_REPO using the same precedence as
download-qairt-runtime.sh, then use that resolved repository consistently for
both release listing and checksum downloads instead of ${repo} or
${NEURUN_REPO:-$repo}.
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Fix all unresolved CodeRabbit comments on this PR:
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⛔ Files ignored due to path filters (6)
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🚀 Tagged v0.20.27 at the reviewed merge commit and dispatched release.yml. The GitHub Release will be created as a draft; publish it after reviewing the assets. |
sanchitmonga22
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Aug 24, 2026
#781 squash-merged before I checked for unresolved review threads -- three existed, two Major. Fixing here rather than leaving them. 1. check_engine_prebuilt_pins.sh's hand-staged-path guard looked for qairt-runtime\versions, but download-qairt-runtime.sh actually stages under qairt-runtime/<platform>/versions/<sha> -- the platform directory sits between the two words the regex required adjacent, so a workflow hardcoding the real staged path would pass this guard undetected. Now matches qairt-runtime\(arm64-v8a|win-arm64)\versions. 2. The gate's QAIRT sections never read QAIRT_RUNTIME_REPO at all, silently validating the NeuRT/QHexRT repo instead. download-qairt-runtime.sh already honors that override, so a future QAIRT-specific repo would have the downloader and the gate checking two different releases. The gate now resolves QAIRT_RUNTIME_REPO with the identical precedence (QAIRT_RUNTIME_REPO -> NEURUN_REPO -> RunanywhereAI/neurun) and uses it for both the release listing and the checksum comparison. 3. _release_asset.sh's comment about requiring a token didn't mention the GH_TOKEN fallback every caller actually supports. Verified: the new regex catches a hardcoded win-arm64 or arm64-v8a path and does not false-positive on the real downloader invocation; pointing QAIRT_RUNTIME_REPO at a nonexistent repo now correctly fails the gate instead of silently validating the real one; the full gate still passes clean against the actual pins.
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Why 0.20.27, not 0.20.26
A separate stopgap "C++ desktop kits" release already claims tag
v0.20.26(draft, PR #776) and explicitly says not to retarget it — the next real SDK train is0.20.27+. Discovered mid-flight; the in-progress build onv0.20.26was cancelled before it collided with that draft.What ships
The full engine-artifact pipeline: NeuRT + QHexRT as pinned prebuilt archives from the private neurun repo, and the QAIRT/QNN runtime the Hexagon engine needs at execution time as its own private, pinned, checksum-verified artifact — paired against the engine's build identity so the two pins can't silently drift.
Also fixed tonight — a real bug an adversarial audit caught
check_engine_prebuilt_pins.sh's new QAIRT section failed on byte-identical hashes:publish-qairt-runtime.shwroteshasum's defaulthash filenamesidecar format, while every other sidecar in this pipeline (NeuRT/QHexRT) is bare-hash. Fixed the publisher, hardened the gate to extract the first field regardless of format, and re-uploaded corrected sidecars to the private release.Plus: 3 stale "public QAIRT" comments left behind by the earlier public→private move, the hand-staged-path guard extended to cover
RA_QNN_RUNTIME_DIR, and agh release create"latest" marker mixup on the private neurun repo that hid the real engine release (fixed + documented as a standing trap).Verified
check_release_version_coherence.sh— cleancheck_engine_prebuilt_pins.sh— clean, including the new QAIRT sectioncheck_qairt_pairing.sh— clean🤖 Generated with Claude Code
https://claude.ai/code/session_01ChXbXRyD165wGuxYUT14Dp
Summary by CodeRabbit
Release
Security and Reliability
Documentation