Astro 6 went stable in March 2026; removes legacy APIs (getEntryBySlug, getDataEntryById, Astro.glob, Astro.canonicalURL)

reference·Scope: business·Status: current

Created 2026-05-22

Claim: Astro 6.0 released stable in March 2026. Major changes vs Astro 5: removed legacy getEntryBySlug, getDataEntryById, Astro.glob, Astro.canonicalURL APIs; tightens around the v5 Content Layer model.

Source: astro.build/blog/ (Astro 6 release notes).

Confidence: Verified.

Migration implication: Astro 5 sites built before March 2026 may still use the legacy APIs and will need a one-pass refactor when upgrading. Astro 5 remains a reasonable conservative default until Q3 2026 if minimizing risk on a specific client engagement is the priority.

Referenced by (1)

rule RULE: Default stack for new marketing-site work is Astro 5/6 + Tailwind v4 on Cloudflare Pages · relates-to