iMac · 2019
iMac (Retina 5K, 27-inch, 2019)
Model identifier iMac19,1. Newest compatible macOS: macOS Sequoia.
- Model identifier
- iMac19,1
- Introduced
- 2019
- Newest macOS
- macOS Sequoia 15
- Family
- iMac
Download macOS for this Mac
macOS Sequoia 15The newest macOS Apple supports on this Mac. See download options →
Older versions you can also install, if they are newer than the macOS this Mac shipped with:
- macOS Sonoma 14
- macOS Ventura 13
- macOS Monterey 12
- macOS Big Sur 11
- macOS Catalina 10.15
- macOS Mojave 10.14
A Mac can't run a macOS older than the one it came with. macOS Recovery can reinstall the original version.
Part numbers
Also called order or configuration numbers. “xx” stands for a region code, such as LL (USA) or B (UK).
MRQYxx/A MRR0xx/A MRR1xx/A
Questions
What is the newest macOS for the iMac (Retina 5K, 27-inch, 2019)?
Apple lists macOS Sequoia as the newest compatible operating system for the iMac (Retina 5K, 27-inch, 2019).
What is the model identifier of the iMac (Retina 5K, 27-inch, 2019)?
The iMac (Retina 5K, 27-inch, 2019) uses the model identifier iMac19,1. You can check yours in System Information › Hardware Overview.
Source: Apple – Identify your iMac model.