:quality(75))
Adobe has released the Magento Upgrade Compatibility Tool, which scans an installation and reports what will break before you commit to a major version upgrade.
What it checks
Point it at your Magento installation, name a target version, and it works through:
custom extensions, modifications and integrations, for compatibility issues
third-party extensions that will not run on the target version
database structure and schema compatibility
It produces reports that categorise issues by severity, and in many cases suggests a route forward or names a community extension that already solves a known problem.
Why that is worth having
Before this, upgrade scoping was archaeology. You stood up a test environment, spent weeks discovering what was broken, and priced the work after you had already spent a chunk of it — with the most expensive surprises arriving closest to go-live. Meanwhile the upgrade you were delaying was the one carrying the security patches.
Knowing the shape of the job up front changes four things: how quickly you can decide, how honestly you can budget, how much risk sits in the plan, and which extensions you retire rather than carry forward.
Using it
Install it via Composer on a development environment, run the analysis against your target version, read the report by severity, and build the plan from what it found. It is a first step, not a substitute for testing — it tells you where to look, not that you are safe.
What this means for you
If a major upgrade is anywhere on your roadmap, run the tool before you put a number against it. We have been working with it already and can run the scan, read the results with you and take the upgrade through to deployment. Being surprised now is considerably cheaper than being surprised in week six.