oxlint 1.87.0 vs ESLint 9.39.4 on react-hook-form (301 files): 0.09 s vs 9.81 s single-thread (6.02 s with --concurrency auto, 1.10 s warm --cache). @oxlint/migrate ported 42 of 84 rules natively, 80 with JS plugins. 315 vs 562 warnings; seeded test 11/15 native, 13/15 with JS plugins, ESLint 15/15.
oxfmt 0.72.0 (5 Oct 2026) swaps its Prettier-backed Markdown path for the native oxc_formatter_markdown (breaking). ShopperCove formatted 221 Markdown drafts with oxfmt 0.71.0, 0.72.0 and Prettier 3.9.9: byte-identical output, ~2 s vs ~16 ms. Plus opt-in import sorting inside code fences, the documented divergences, ignore-file and LSP fixes. No affiliate links.
New Ready Client Sites angle: ShopperCove fetched all 15 live prebuiltwebs.com demos — client-rendered React SPAs with hash routes, built-in admin/enquiry/upload APIs, placeholder content JSON, no robots.txt/sitemap, soft 404s — and turned it into a pre-purchase SEO and handover checklist. Distinct from the Node.js packs and launch-checklist posts. One disclosed hop. No purchase.
Rspack published @rspack/core@2.2.8 on 28 September 2026: resolver caching, memory shrinks, and modern-module deferral fixes on the 2.2 line. Upgrade checklist only; no affiliate.
Biome published @biomejs/biome@2.5.15 on 30 September 2026: type-inference and HTML formatter performance, plus nursery rules for React defaults, Svelte runes, logical CSS, and more. ShopperCove upgrade checklist only; no affiliate.
oxlint published v1.87.0 on 5 October 2026: suggestion support for three React/unicorn rules and jsx-a11y/label/mouse/lang hardening plus other fixes. npm latest 1.87.0 confirmed; ShopperCove docs checklist only; no affiliate.
Astro’s documentation theme Starlight published 0.42.0 on 2 September 2026 with a Popover API mobile menu that works when JavaScript fails, a move from shipping TypeScript source to compiled JavaScript + declaration files, removal of the unused tagline option, and a bump to Astro 7.2.10+. npm latest as of 5 Oct 2026 is 0.42.5 (Macedonian locale, 1 Oct). ShopperCove docs upgrade checklist only; no affiliate.
ESLint published v10.12.0 on 2 October 2026 as a minor release: documentation and TypeScript types for SourceCode#getText(), getLoc(), and getRange() now accept tokens and comments (matching runtime behavior), plus multiple rule fixes including astral/Unicode letter handling and autofix edge cases. npm latest confirmed 10.12.0; ShopperCove docs checklist only; no affiliate.
Playwright 1.63.0 (4 Sep 2026) adds named test locks for shared resources, cross-frame frameLocator() without a selector, locator.visible(), richer step metadata, and optional aria/screen snapshots in traces. Experimental CT React/Vue packages freeze; Ubuntu 20.04 dropped. ShopperCove docs checklist only; no affiliate.
