Compatibility unknown. CompatHub does not currently have authoritative compatibility information for this combination. This does not mean the versions are incompatible.
See Caddy and Go in the software catalogue, or return to the Compatibility Explorer.
Why?
Why is compatibility between Caddy 2.5 and Go 1.21 unknown?
- Requirement
- Go >=1.17.0 <2.0.0
- Selected version
- Go 1.21
- Evaluation
- Compatibility was not evaluated because the requirement could not be parsed safely.
- Conclusion
- UNKNOWN
Evidence
CompatHub reports compatibility from upstream sources rather than making unsupported claims of its own.
Caddy go.mod Go Toolchain
Confidence: HIGHhttps://raw.githubusercontent.com/caddyserver/caddy/v2.5.2/go.mod
Retrieved 2 September 2026
Requirement: >=1.17.0 <2.0.0
Go versions
Compatibility is derived from the project's declared Go requirement (>=1.17.0 <2.0.0); it does not mean every version combination has been independently tested.
Other Caddy versions
Only lines with relevant compatibility evidence are listed.
Lifecycle context
Lifecycle status is separate from compatibility. An EOL component can still satisfy a documented version requirement.
Security context
Compatibility, lifecycle, and security are separate dimensions.
- Go 1.21: 1 known-exploited (CISA KEV) among 14 tracked advisories. View details →
CompatHub does not invent vulnerability data.