OS X 10.10: Yosemite-2014 -- that's quite OLD now. see
Here's the last 10 MacOS names:
- MacOS 10.14: Mojave- 2018.
- MacOS 10.13: High Sierra- 2017.
- MacOS 10.12: Sierra- 2016.
- OS X 10.11: El Capitan- 2015.
- OS X 10.10: Yosemite-2014.
- OS X 10.9 Mavericks-2013.
- OS X 10.8 Mountain Lion- 2012.
- OS X 10.7 Lion- 2011.
If you're running any release from
macOS 10.13 to 10.9, you
can upgrade to macOS Big Sur from the App Store.
Support:
- Sierra macOS 10.12.x.
- High Sierra macOS 10.13.x.
- Mojave macOS 10.14.x.
- Catalina macOS 10.15.x.
