Quick Answer
Versioned Swagger docs: call SwaggerDoc("v1", ...) and SwaggerDoc("v2", ...) in AddSwaggerGen. Use DocInclusionPredicate to match controllers to docs versions. UseSwaggerUI with multiple endpoints: c.SwaggerEndpoint("/swagger/v1/swagger.json", "V1") and v2. Combine with Microsoft.AspNetCore.Mvc.Versioning so each versioned controller appears in the correct Swagger doc.
Answer
Versioned Swagger ensures clarity when multiple API versions coexist:
Configure multiple SwaggerDoc groups in AddSwaggerGen().
Use ApiExplorerSettings to group endpoints by version.
Apply versioned routes (v1, v2) or header/query-based versioning.
Expose separate Swagger UI endpoints for each version.
Helps clients migrate safely while maintaining backward compatibility.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
