When allowPrerelease=true, the GitHub /releases API returns drafts in authenticated responses ordered by created_at desc. A draft prerelease near the top of the list would be selected as the latest version, silently blocking published releases — a common side effect of failed publish runs that leave orphaned drafts.

Changes

• getLatestVersionInfo: Filter out draft releases before selecting the latest candidate. Prefers a non-draft prerelease; falls back to the first non-draft release. If only drafts exist, returns undefined (caller throws ERR_UPDATER_CHANNEL_FILE_NOT_FOUND) rather than silently serving a draft.
• ReleaseInfo interface: Added draft and prerelease boolean fields to reflect the actual GitHub API response shape.

// Before
return (version as Array<{ prerelease: boolean }>).find(it => it.prerelease) || version[0]

// After
const candidates = (version as Array<{ prerelease: boolean; draft: boolean }>).filter(it => !it.draft)
return candidates.find(it => it.prerelease) || candidates[0]