Use when upgrading, validating, or modernizing Node.js projects for Node.js 26, or when answering implementation questions about Node.js 26 features and compatibility. Covers Temporal enabled by default, V8 14.6 Map/WeakMap get-or-insert helpers, Iterator.concat, Undici 8, raw crypto key formats, re
Use when upgrading, validating, or modernizing Node.js projects for Node.js 26, or when answering implementation questions about Node.js 26 features and compatibility. Covers Temporal enabled by default, V8 14.6 Map/WeakMap get-or-insert helpers, Iterator.concat, Undici 8, raw crypto key formats, removed/deprecated APIs, native addon rebuilds, platform minimums, and release/LTS readiness decisions