Distillation

Date: Sep 10, 2026

• 🔴 (04:32) User-provided module is described as “Delta upgrade discovery and application backed by binpatch.”
• 🔴 (04:32) User-provided delta-upgrade code imports join from node:path and uses a namespace import, import * as Sentry from "@sentry/node-core/light", with the comment biome-ignore lint/performance/noNamespaceImport: Sentry SDK recommends namespace import.
• 🔴 (04:32) User-provided delta-upgrade code imports these binpatch APIs and types: applyPatchChainInMemory, extractStableChain as binpatchExtractStableChain, filterAndSortChainTags as binpatchFilterAndSortChainTags, validateChainStep as binpatchValidateChainStep, DeltaTelemetry, DeltaUnavailableReason, ExtractStableChainOpts, GitHubRelease, getPatchFromVersion, getPatchTargetSha256, ghcrSource, githubReleaseSource, InstrumentHook, MAX_NIGHTLY_CHAIN_DEPTH, makeCache, OciClient, OciManifest, PATCH_TAG_PREFIX, and PatchCache.
• 🔴 (04:32) User-provided delta-upgrade code includes patchCacheKey(currentVersion, targetVersion) for constructing a patch-cache key.
• 🔴 (04:32) User-provided delta-upgrade module exports canAttemptDelta(targetVersion: string): boolean.
• 🔴 (04:32) User-provided delta-upgrade code validates GitHub release data as an array and logs GitHub releases response is not an array with typeof data when it is not.
• 🔴 (04:32) User-provided stable-chain extraction delegates to binpatchExtractStableChain(opts).
• 🔴 (04:32) User-provided nightly-chain discovery fetches manifests concurrently with chainTags.map((tag) => client.fetchManifest(opts.token, tag, opts.signal)).
• 🔴 (04:32) User-provided delta-upgrade telemetry sets the active Sentry span attribute delta.source to "offline_miss" for an offline cache miss.
• 🔴 (04:32) User-provided delta-upgrade telemetry sets the span attribute delta.to_version to targetVersion.
• 🔴 (04:32) User-provided delta-upgrade code includes a function returning Promise<DeltaResult | null> and uses a SourceStrategy parameter in its source-handling logic.