Automatically detect breaking changes and get accurate version suggestions with Sideko's latest release

Managing API versions shouldn't feel like walking through a minefield blindfolded. Yet for most development teams, determining whether a change is patch, minor, or major involves manual analysis, lengthy discussions, and—let's be honest—educated guesswork.

Today, we're excited to announce two groundbreaking features that eliminate the uncertainty: Intelligent API Versioningand Smart SDK Versioning. These aren't just automated changelog generators—they're sophisticated analysis engines that understand the true impact of your changes.

The Problem with Traditional Versioning Tools

Most existing tools take shortcuts. They'll flag a major version bump simply because a schema reference changed from #/components/NewNovel to #/components/NewBook—even when the underlying data structure is identical. They miss critical context about whether changes affect serialization versus deserialization, and they certainly don't understand the nuances of different programming languages.

The result? False positives that create unnecessary friction, and false negatives that ship breaking changes without warning.

Smart API Versioning: Beyond Surface-Level Analysis

Our new API Versioning feature performs deep, context-aware analysis of your OpenAPI specifications:

Comprehensive Artifact Comparison

We analyze all the pieces that matter:

• Endpoints: Route changes, method modifications, parameter updates

• Servers: Host and base path alterations

• Authentication: Security scheme modifications

• Webhooks: Event structure and delivery changes

Deep Schema Intelligence

Here's where we go beyond the competition. Instead of superficial reference comparison, we perform actual schema analysis:

• True schema comparison: We understand when a reference change masks an identical underlying structure

• Directional context awareness: Request schema changes are evaluated for serialization compatibility, while response schemas are checked for deserialization compatibility

• Backwards compatibility detection: We know the difference between additive changes (minor) and breaking modifications (major)

Intelligent Version Suggestion

Each change receives its own version impact assessment, then we merge suggestions using a simple but effective max()function—because your API version should reflect the most significant change across all modifications.

Smart SDK Versioning: Language-Aware Analysis

APIs don't exist in isolation—they're consumed through SDKs. Our SDK Versioning feature understands this reality:

Language-Semantic Analysis

We don't just look at your API changes; we analyze how those changes translate into actual code interfaces:

• Language-specific semantics: A change that's minor in your API might be major in Python but patch-level in JavaScript

• SDK configuration awareness: We understand how your SDK generation settings affect the final developer experience

• Code interface evaluation: Class names, function signatures, module structure, and attribute naming are all considered

Multi-Language Intelligence

Different languages have different backward compatibility rules. We evaluate each target language independently, then provide a consolidated recommendation that ensures consistency across your entire SDK suite.

Real-World Impact

These features transform how teams approach API evolution:

For API Designers: No more manual change analysis or heated debates about version numbers. Get confident, automated suggestions backed by deep technical analysis.

For SDK Maintainers: Understand exactly how API changes will affect each target language before you release, preventing breaking changes from slipping through.

For Integration Teams: Clear, accurate versioning means predictable upgrade paths and fewer production surprises.

Getting Started

Both API and SDK Versioning are available now for all Sideko users. Simply upload your latest OpenAPI specification or mark your SDK as released, and our analysis engine will automatically compare against your previous versions.

The intelligence happens behind the scenes—you get clear, actionable version suggestions without any additional configuration.

Ready to bring intelligence to your API versioning? Try Sideko's new versioning features today and experience the difference that context-aware analysis makes.

Questions about the new features? Reach out to our team—we'd love to hear how intelligent versioning impacts your workflow.