Compatibility result

FastAPI 0.128+Python 3.11

COMPATIBLE

Why?

Why is FastAPI 0.128 compatible with Python 3.11?

Requirement
Python >=3.9,<3.15
Selected version
Python 3.11
Evaluation
Python 3.11 is explicitly listed as supported; it also satisfies >=3.9,<3.15.
Conclusion
COMPATIBLE

Evidence

CompatHub reports compatibility from upstream sources rather than making unsupported claims of its own.

Python versions

Compatibility is derived from the project's declared Python requirement (>=3.9,<3.15); it does not mean every version combination has been independently tested.

Other Python versions satisfying this requirement

FastAPI 0.128 — compatible Python lines tracked in CompatHub

Other FastAPI 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.

FastAPI 0.128
Status
STANDARD SUPPORT
Python 3.11
Status
SECURITY SUPPORT
EOL
1 October 2027

Security context

Compatibility, lifecycle, and security are separate dimensions.

CompatHub does not invent vulnerability data.

Supported alternatives

Python lines that satisfy this requirement and are still supported.