What version of macOS do MacBooks come with?
Every Mac has two key macOS versions: the default operating system it originally shipped with, and the maximum operating system it can support. On RefurbMe, you can find both listed under Product configuration on any Mac product page:
Default vs maximum macOS
- Default macOS is the version the MacBook shipped with when it was first sold by Apple. This is the minimum version the Mac can run.
- Maximum macOS is the latest version of macOS that the hardware supports. Apple drops support for older models with each new macOS release.
Most refurbishers install the latest compatible macOS before shipping, but this is not always guaranteed. The merchant's product page rarely specifies the exact version installed.
How to check and update macOS
Once you receive your refurbished MacBook:
- Click the Apple menu in the top-left corner and select About This Mac to see the current macOS version
- Open System Settings (or System Preferences on older versions) and go to General > Software Update
- If an update is available and your Mac supports it, click Update Now or Upgrade Now
Updating to the latest supported macOS is free and ensures you have the newest features, security patches, and app compatibility.
Which models support the latest macOS
Apple typically supports MacBooks for 7 to 10 years after their original release. Older models gradually lose eligibility for new macOS versions. For example, macOS Sequoia (2024) requires a MacBook Air or MacBook Pro from 2017 or later. Before purchasing, check the maximum macOS listed on RefurbMe to ensure the model supports the version you need.
For a deeper look at long-term support, see how long refurbished Macs receive software updates.