Is your Mac up to date with the latest version of the Mac operating system (macOS or OS X)? Is it using the version required by some other product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.
If your macOS isn't up to date, you may be able to update to a later version.
Apple Mac OS X Installation The cloudLibrary by bibliotheca application is an innovative way to browse, borrow and read popular fiction and non-fiction eBooks from your local public library. You will need a valid library card to use the application. Note: The headings on this list indicate the Macintosh System bundle names; the bullet points indicate the version of the System File included in that bundle. This is to make it clearer for people searching for specific bundle versions as opposed to System File versions. Finder File versions are not indicated. 1 Classic Mac OS 1.1 Macintosh System Software (0 - 0.3) 1.1.1 System File 1 1.1.2.
Which macOS version is installed?
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Mojave, followed by its version number. If you need to know the build number as well, click the version number to see it.
This example shows macOS Catalina version 10.15 build 19A583.
Which macOS version is the latest?
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Catalina. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
| macOS | Latest version |
|---|---|
| macOS Catalina | 10.15.7 |
| macOS Mojave | 10.14.6 |
| macOS High Sierra | 10.13.6 |
| macOS Sierra | 10.12.6 |
| OS X El Capitan | 10.11.6 |
| OS X Yosemite | 10.10.5 |
| OS X Mavericks | 10.9.5 |
| OS X Mountain Lion | 10.8.5 |
| OS X Lion | 10.7.5 |
| Mac OS X Snow Leopard | 10.6.8 |
| Mac OS X Leopard | 10.5.8 |
| Mac OS X Tiger | 10.4.11 |
| Mac OS X Panther | 10.3.9 |
| Mac OS X Jaguar | 10.2.8 |
| Mac OS X Puma | 10.1.5 |
| Mac OS X Cheetah | 10.0.4 |
The cloudLibrary by bibliotheca application is an innovative way to browse, borrow and read popular fiction and non-fiction eBooks from your local public library. You will need a valid library card to use the application. If you do not have access to a library card, please inquire at your local library as to how to get one. Your library credentials will give you access to the thousands of titles available to you as a member of your local library. The cloudLibrary application is part of a full suite of services purposed for you to enjoy books from your public library. If your local library does not yet have the cloudLibrary please ask them about getting a subscription for your community.
Myrulib For Mac Os High Sierra
The application has the ability to transfer content to a personal e-reader using either an existing Adobe ID or using the cloudLibrary ID.
Myrulib For Mac Os 10.10
- Nook (original)
- Nook Touch
- Nook Glowlight
- Nook Color
- Nook HD+ please click here for special instructions
- Nook HD please click here for special instructions
- Nook GlowLight Plus please click here for special instructions
- Nook GlowLight 3
- Kobo
Mac Os High Sierra
Note: Please use Safari as your web browser for this page in order to download the app correctly. FireFox will not download the app.