Finding your Mac’s OS X version and build number will let you know if it’s up to date. Currently, the most updated operating system is none other than OS X El Capitan 10.11 (check out our review).
Knowing it is important, especially if you are planning to buy and install an application from the Mac App Store. You never know: your operating system could be incompatible with the app you are looking to purchase.
Here’s how to learn what your Mac’s OS X version is
Simply go to the menu and click About This Mac. For the OS X Snow Leopard, it shows the operating system’s version. along with the RAM.
For OS X Yosemite and this will appear:
It shows the build number and the version number. As for newest OS X, El Capitan:
It does not show the build number, which is Build 15A284. As for the Mavericks operating system:
It shows the build number but not the version number.
Each OS X shows different content in About This Mac, which is quite confusing if you think about it. Apple might want to avoid confusing their users and use a uniformed – and complete style – starting from OS X El Capitan and up.
List of build numbers
Here’s a list of build numbers from OS X Mavericks to El Capitan:
OS X Mavericks
- OS X Mavericks v10.9.5 – Build 13F34
- OS X Mavericks v10.9.4 – Build 13E28
- OS X Mavericks v10.9.3 – Build 13D65
- OS X Mavericks v10.9.2 – Build 13C64
- OS X Mavericks v10.9.1 – Build 13B42
- OS X Mavericks v10.9 – Build 13A603
OS X Yosemite
- OS X Yosemite v10.10.5 – Build 14F27
- OS X Yosemite v10.10.4 – Build 14E46
- OS X Yosemite v10.10.3 – Build 14D136
- OS X Yosemite v10.10.2 – Build 14C109
- OS X Yosemite v10.10.1 – Build 14B25
- OS X Yosemite v10.10 – Build 14A389
Since its release, El Capitan hasn’t been updated yet, which puts the current build number at build 15A284 – we’ll be keeping tabs as this changes in the near future.