5.51.1 (2026-07-29)

🔥 Bug fix

• respect field length constraints in AI localizations and isolate… (#26880)
• wording and merging sort options (844c8d625d)
• preserve sorting on view change (6ed616ab9a)
• admin: scope audit logs user filter to log authors (#27047)
• content-manager: homepage recent-documents dates serialize as empty objects (#27066)
• core: enforce required media and relations via api.documents.strictRelations (#27028)
• database: return [] for empty morphMany on read (#27090)
• strapi: prevent duplicate public assets in Vite builds (#27089)

⚙️ Chore

• admin: allow RFC 6265 control-char regex under develop eslint rules (e8338bb6ba)
• ci: remove admin bundle-size workflow (#27070)
• deps: bump brace-expansion from 1.1.14 to 1.1.16 (#27071)
• deps: bump shell-quote from 1.8.4 to 1.10.0 (#27072)
• deps: bump body-parser from 1.20.4 to 1.20.6 (#27094)
• deps: bump dompurify from 3.4.11 to 3.4.12 (#27095)
• deps: bump fast-uri from 3.1.2 to 3.1.4 (#27098)
• deps: bump use-context-selector from 1.4.1 to 1.4.4 (#27061)
• deps: bump cropperjs from 1.6.1 to 1.6.2 (#27060)
• deps: upgrade handlebars, axios, tar, and related transitive deps (#27091)
• deps: bump @radix-ui/react-toolbar from 1.0.4 to 1.1.11 (#27059)
• email-nodemailer: migrate unit tests from jest to vitest (#27074)
• email-sendmail: migrate unit tests from jest to vitest (#27075)
• upload-local: migrate unit tests from jest to vitest (#27073)

⚠️ Changes to be aware of

Required media and relations: opt-in strictRelations

New config api.documents.strictRelations enforces required media and relations on publish (drafts can still be empty). On by default for new projects; existing apps are unchanged until you set it. To opt in, set documents.strictRelations: true in config/api.
(#27028)

Empty multiple media / morphMany now returns []

Populated empty morphMany relations (including type: 'media', multiple: true) serialize as [] instead of null, matching other to-many relations. This is unconditional and not gated by strictRelations. If clients, webhooks, or integrations check field === null for empty galleries / morphMany, treat [] as empty instead (e.g. !field?.length).
(#27090)

❤️ Thank You

• Adrien L @Adzouz
• Adrien Lepoutre @Adzouz
• akash-dabhi-qed @akash-dabhi-qed
• Ben Irvin
• Giulio Montagner @giu1io
• Gonzalo Andres Garcia @gonbaum
• Mehdi Rezaei @mehdiraized
• Nico André