How can I figure out the version of LESS used by Magento 2?

I need it for a bug report.

1 Answer 1


You can find less.min.js here: vendor/magento/magento2-base/lib/web/less/less.min.js

In the first few lines you can see the version: "Less - Leaner CSS v2.3.1"

For me (Magento 2.3.2) it's v2.3.1

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