What can I say? This mini arrived with Ventura 13.4.4 installed. OK. However, these minis do not have a replaceable SDD.After copying content from an old mini, however, there was not enough disk space to upgrade to 13.4.6 or 13.6.6 or whatever the incremental upgrade is (I've blocked it from my memory).So a hint: if you buy one of these underpowered minis, UPGRADE YOUR SYSTEM before you use Apple's built-in manager to transfer your old files to your mini, or buy an external SSD on which to keep your materials.Otherwise you're going to be backing up, erasing content, updating the system, and restoring content.On one level, this is not the vendor's fault. On another, the description should most certainly include a warning about the serious problem of limited disk space on these models.Part 2 of the nightmare involved the replacement mini with a 256GB drive I ordered instead.