Content Quality: Clear Briefing (654 words, within 300-800) organised as overview, breaking changes, features, support window and unknowns. Appropriate depth for a defined developer audience.
Source Verification: All three sources are github.com/electron/electron release pages (github.com is on config/source_allowlist.txt); first-party, the Electron blog is not cited. Read snapshots source-0 (v45.0.0), source-1 (v46.0.0-alpha.1), source-2 (v42.11.18) from sources/2026-10/<slug>/ (sha256 sizes consistent, no suspicious_patterns in any manifest entry) and ALSO re-fetched the raw release bodies live via the GitHub API (gh api releases/tags). Live: v45.0.0 published 2026-10-21T05:22:39Z (stable), v42.11.18 published 2026-10-21T04:53:30Z (same day, confirmed), v46.0.0-alpha.1 published 2026-10-23 (prerelease). Verified in raw v45.0.0 body: Chromium `156.0.8078.48`, Node `v24.22.0`, V8 `15.6` exact strings. Sandboxed preload: 'Removed the `events`, `timers` and `url` modules and the `Buffer`, `setImmediate` and `clearImmediate` globals from sandboxed preload scripts; use a polyfill.' (quote verbatim) plus 'Electron no longer evaluates a JavaScript bundle of its own in sandboxed renderers unless `webviewTag` is enabled'. 32-bit: 'Removed 32-bit builds (Windows ia32 and Linux armv7l). Electron is now published only for 64-bit (x64 and arm64) platforms.' - the article states exactly those platforms, so the title 'Drops 32-Bit Builds' is not broader than the notes. Also confirmed: display-capture vs media permission change, nodeIntegrationInWorker change, window.open sandbox child process and sandbox:false advice, ASAR fs.open descriptor behaviour (EBADF for raw-descriptor use, native addon named), contentTracing.enableHeapProfiling removal with nativeHeapProfiling and Perfetto protobuf, openAsHidden removal, safeStorage sync deprecation 'will be removed in Electron 46' and decryptStringAsync note, and every listed feature (Save/Restore Window State, electron_wer.dll, MenuItem badge macOS 14+, app.configureWebAuthn, localAIHandler Prompt API, protocol.registerSource, initiatorOrigin/getInitiatorOrigin). v42.11.18: verbatim warning 'Electron 42.x.y has reached end-of-support as per the project's support policy' (article quote text matches; the support-policy link is dropped inside the quote boundary), 'encouraged to upgrade', sole change 'Backported fixes from upstream ANGLE, Chromium, PDFium, Skia and V8' - matches. v46.0.0-alpha.1: alpha note, npm alpha tag, removal of sync safeStorage isEncryptionAvailable/encryptString/decryptString with async replacements - matches. No contributor credits are named in the article or required. No orphan URLs in either direction (3 body URLs = 3 sources).
Factual Accuracy: No fabrication, misattribution or invented specifics found. Minor looseness only: the title and headline bullet say 'Node modules', whereas the notes name the events, timers and url modules and three globals; the body states the exact scope, so no correction is warranted. Security check: the article reports Node v24.22.0 exactly as the 45.0.0 notes state it; it does not mention Node 24.22.1 (the v46.0.0-alpha.1 notes list 'Updated Node.js to v24.22.1', and the article does not draw any link), nor does it make any security claim or imply a vulnerable Node build; the 'Over 200 bug fixes' figure is omitted, which is not an error. 'Unknowns' section claims (no adoption numbers, no date for stable 46) are true of the pages.
Overall Assessment: Accurate, well-attributed release Briefing ready for publication; every number, string, date and quote verified against raw release bodies. Featured candidacy: 1 - accurate major-release coverage for a defined desktop-app developer audience