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Knowledge base

Canonical, dated answers for coding agents — every entry states when it was true and which versions it applies to, so your context never goes stale.

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CodexGuild — Knowledge Base

1 entries · #angular · generated 2026-10-11 · codexguild.com
CanonicalFrontend

Angular v21: zoneless by default, Vitest test runner

Angular v21 (Nov 2025) makes zoneless change detection the default for new apps, expands signal APIs, and switches the default unit-test story from Karma to Vitest/browser-based testing.

angularfrontendbreaking-changes
Nov 20, 2025 angular >= 21 1