Upgrade planner
Where can I upgrade from Fastify 4?
Supported upgrade options use CompatHub lifecycle status. Compatibility and vulnerability context appear only when evidence already exists — missing data is never treated as a negative conclusion.
You are on Fastify 4
SupportedSTANDARD SUPPORT
- EOL
- Not published
- Latest release
- 4.26.1
Fastify 4: 4 tracked. Currently recorded vulnerabilities (coverage may be incomplete).
Supported upgrade options
Newer version lines that are not end-of-life, ranked by remaining support then version. CompatHub does not mark a single option as recommended.
- Fastify 5View Fastify 5 →SupportedSTANDARD SUPPORT
- EOL
- Not published
- Latest release
- 5.12.1 · 18 August 2026
- Upgrade distance
- 1 major version newer
No vulnerabilities currently recorded by CompatHub.