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Unity Version Migration Checker

Unity Version Migration Checker

Thinking about upgrading to Unity 6? Select your current version and we'll show you the breaking changes, deprecated APIs, and migration steps you need to know about. No sign-up required.

Step 1: Select your current Unity version
Step 2: Select your target Unity version
Step 3: Select the features your project uses

Render Pipeline

Shaders(select all that apply)

Networking

Assets

Build

Plugins

UI

Input

Services

Monetisation(select all that apply)

XR(select all that apply)

Select the features your project uses above to see your migration report.

Need help with your migration?

Unity version migrations look straightforward on paper but rarely are in practice. Plugin incompatibilities, subtle rendering differences, and undocumented behaviour changes can turn a simple upgrade into weeks of debugging. If you'd like an expert assessment of your project's migration path, our technical audit covers this in detail.

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Frequently Asked Questions

The Unity Migration Checker analyses documented breaking changes, deprecated APIs, and feature-specific migration steps between Unity LTS versions. Based on your current version, target version, and selected features, it generates a report covering API changes that require code updates, render pipeline compatibility, package version requirements, and known compatibility issues with common third-party plugins.
Your specific codebase. Custom systems, bespoke render passes, proprietary shaders, project architecture, third-party middleware not covered in Unity's compatibility matrix, and subtle behaviour changes not documented in Unity's release notes. For these, you need a manual review of your actual project. Our Unity modernisation service covers this.
The report is based on Unity's official breaking change documentation and release notes. It catches the majority of common upgrade issues. However, every real migration also encounters project-specific issues such as custom code, undocumented behaviour differences, plugin edge cases, and data asset incompatibilities that no automated checker can predict. Treat the report as a strong starting point, not a complete list.
The tool supports Unity 2019 LTS through Unity 6.3 LTS. If you're on Unity 2018 or earlier, we recommend stepping through 2019 LTS first and running the checker from there. Projects on 2017 or earlier have additional considerations beyond what any automated tool can assess; contact us for a manual audit.
It flags render pipeline changes at the package level (Built-in, URP, HDRP). Custom SRP implementations and hand-written shaders need manual review. The report will warn you where custom code is likely affected, but the specifics depend on your code.
No. The tool runs entirely in your browser. The versions, features, and options you select are not sent to any server or logged.
Three paths, depending on your situation. If you have a small gap and a capable team, use the report as your migration checklist and do the work in-house. If you're scoping a larger effort, share the report with your team as input for timeline and budget planning. If you have a live project or complex codebase, send us the report as the starting point for a professional migration audit. Our Unity modernisation service takes over from where the checker leaves off.

Need an expert assessment of your Unity migration? Let's talk.

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