Add comprehensive Node.js 26 release blog post#35
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Code-heavy tour of Node.js 26 highlights, prioritised by excitement: Temporal API (now stable by default), Map/WeakMap upsert helpers, Iterator.concat, crypto raw-key support and Ed25519 context, plus an upgrade checklist for the breaking changes. Each section shows what the new API looks like and, where useful, the older pre-26 equivalent. https://claude.ai/code/session_01AQihcJjkxeokR9LrdeYuZY
v25 was not skipped: it was the standard October 2025 odd-numbered Current release that reaches end-of-life when v26 ships. Replaces the incorrect intro paragraph and FAQ entry. https://claude.ai/code/session_01AQihcJjkxeokR9LrdeYuZY
Adds a short paragraph acknowledging Moment.js, Luxon, and date-fns as the libraries we used to reach for, and frames Temporal as one less dependency to worry about. https://claude.ai/code/session_01AQihcJjkxeokR9LrdeYuZY
Mentions Python's dict.setdefault and Rust's HashMap::entry().or_insert_with to give context to readers who have used the same pattern in other languages and missed it in JS. https://claude.ai/code/session_01AQihcJjkxeokR9LrdeYuZY
Adds a canonical-reference link to nodejs.org/en/blog/release/v26.0.0 in the wrapping-up section so readers can dig into the full changelog. https://claude.ai/code/session_01AQihcJjkxeokR9LrdeYuZY
Final pass over the article and content calendar after two reviews and several rounds of in-line revisions. Highlights: - Iterator.concat section: broken async paginated example (Iterator.concat is sync-only) replaced with a sync log-merge example, plus a streaming async companion in the example repo - Ed25519 context strings demoted from a full subsection to a one-line mention; raw-key snippet updated to the real v26 API (format: 'raw-private', asymmetricKeyType) - temporal-sort snippet fixed (Array#map was passing the index into Temporal.PlainDate.from's options slot) - File-name tabs (title="...") on every code block that mirrors a file in lmammino/nodejs-26-examples - Internal links added to HTTP-requests and install-Node guides - Content calendar updated with the new article entry, linking map, and a note about release-announcement articles as a recurring slot - Publish date set to 2026-05-10T16:15:00
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Local typecheck passed but CI was failing on `pnpm typecheck` because TypeScript was only a transitive dep (via @typescript-eslint / astro), and CI's environment ended up resolving a newer TypeScript (pnpm even hinted "6.0.3 is available" on install). The newer compiler flagged `baseUrl` as a hard error (TS5101) and recommended setting `"ignoreDeprecations": "6.0"` — a value that doesn't exist in 5.8.3. Pinning typescript@5.8.3 as a direct devDep makes CI and local use the same version unambiguously. The large pnpm-lock.yaml diff is mostly formatting/consolidation; the only intentional change is the new `typescript: 5.8.3` entry.
Lockfiles are auto-generated and shouldn't be reformatted by prettier; .tmp/ is a local scratch directory. Both were causing format:check to fail on CI after the typescript-pin lockfile rewrite.
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Summary
Add a detailed blog post covering the features, improvements, and breaking changes in Node.js 26, released on May 5, 2026.
Key Changes
src/content/blog/whats-new-in-nodejs-26/index.md(515 lines)getOrInsert()andgetOrInsertComputed()methodsNotable Implementation Details