I received an older MacBook Pro 5,1 (MacBook Pro 15” Unibody, Late 2008 / Early 2009), but it came without a hard drive. I installed Mountain Lion from DVD, then updated to El Capitan, which is the latest version of macOS supported by this laptop. I am now unable to install Keynote—or any iWork app—because they all require macOS Sierra. Pages, Numbers and Keynote all hit version 2.6 on iOS 9, while the same titles reached version 5.6 on OS X 10.11 El Capitan, each bringing enhancements specific to Apple's latest operating systems.

• El Capitan Mac Update
• Download El Capitan
• Free El Capitan Download

If your Mac is too old to install macOS Mojave, you can still upgrade to the latest version of macOS that is compatible with it, even if you can't find those versions of macOS in the Mac App Store. Apple has pages for High Sierra, Sierra and El Capitan than include links directly to the hidden Mac App Store pages with those downloads.

Check out Upgrading Older Macs To Earlier Versions Of macOS at YouTube for closed captioning and more options.

Video Transcript: What if you have a Mac that is too old to run macOS Mojave but you're not at the latest operating system that that Mac can run. How do you update to it? If you have a recent Mac from the last few years you can probably update to Mojave and you've probably been bugged to do so. I'm a big advocate of always running the latest software. You get the latest features and you get the best security. If you want to upgrade to Mojave you can simply search for Mojave in the Mac App Store and it comes up and you can upgrade from there. But if your Mac is too old you won't be able to. As a matter of fact if you don't see it here and you can't get to it in the Mac App Store that probably means your Mac is too old.So how do you get to a newer operating system that can run on your computer but is newer than what you've got. Like, for instance, maybe you're running Sierra but your Mac can run High Sierra and for some reason you haven't gotten around to upgrading to High Sierra yet. Well, you can still get to those in the Mac App Store but you won't find them by searching. If I search for High Sierra it doesn't come up. If I search for Mac OS it doesn't come up. I just get Mojave there and some other stuff. So how do you find it.Well, Apple has you covered because they have links that go directly to these. So let's take a look here in Safari. Here is the page to upgrade to macOS High Sierra. I'll include the link here in the post at MacMost.com. You can find it pretty easily with a search. It gives you the details about how to upgrade. It even gives you a compatibility check. Now if you want to see a compatibility check for Mojave just to be sure whether or not you can upgrade to it, Apple has a page for that as well with all the requirements for upgrading to Mojave.On this upgrade page here for High Sierra it has the requirements for upgrading to High Sierra. It has some general instructions and, most importantly, it has a link right here that will open up the Mac App Store to the page for macOS High Sierra. Even though before it was hidden. So this is great! But what if your Mac is even older than that.There are other pages as well. As a matter of fact at the bottom of this page for High Sierra there is a link to the same page but for Sierra. It's got the requirements for Sierra and it has a link to go to the Sierra page. If we go back here we can see there was the link for El Capitan and you can go and click on that here and get to the El Capitan link in the Mac App Store.So there are ways to upgrade to older versions than Mojave if your system can take them and if for some reason you haven't gotten around to upgrading all the way until now. I'll include all these links in the post at MacMost.com.

El Capitan Mac Update

Download El Capitan

Free El Capitan Download

Links: