Nextcloud v34.0.3 released on 13-08-2026
Nextcloud v34.0.3 is out now. It delivers urgent security fixes that close recently reported vulnerabilities and hardens authentication, access control and file‑sharing code paths.
See the release notes on the Nextcloud GitHub release page for full details, CVE references and official advisories: v34.0.3 release.
What’s in this release
- Security and hardening: urgent fixes for authentication, access control and file‑sharing paths.
- Core stability and correctness: crash and memory‑leak fixes, corrected file‑operation edge cases, improved background job handling and database‑query optimisations to reduce load.
- App and integration updates: compatibility fixes for first‑party apps (Calendar, Contacts, Talk, Files), federation and sharing interoperability adjustments, and compatibility maintenance for supported PHP and database versions.
Upgrade notes
- Follow recommended pre‑upgrade steps: take a full backup, check app compatibility, enable maintenance mode and run the preferred upgrade sequence (occ upgrade).
- Keep a rollback plan and backups in place; contact enterprise support if you require assisted rollback or have a complex environment.
Share any comments or notes about your upgrade experience so others can benefit from what worked or what needed extra attention.
