If you're using one of these computers with OS X Mavericks or later, you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier. Learn how to upgrade to macOS Catalina.

Imac 2009 Install Catalina
Imac 2009 Upgrade To Catalina Version
Imac 2009 Upgrade To Catalina Update
Imac 2009 Upgrade To Catalina Download
Can A 2009 Imac Be Upgraded
Imac 2009 Upgrade To Catalina Free

A: Answer: A: There was an Early 2009 iMac and a Late 2009 iMac. See Identify your iMac - Apple Support. The Early 2009 can be upgraded to 10.11 El Capitan. See How to download OS X El Capitan - Apple Support. The Late 2009 can be upgraded to the current macOS 10.13 High Sierra. See macOS - How to Upgrade - Apple. The upgrade to the macOS Catalina process involves two steps: backup and installation. After you have created a backup, the next step is visiting the App Store to download the macOS installer. Depending on your internet speed, the download may take some time. Upon completing the download, you can install the macOS Catalina app that you can find.

MacBook Pro

IMac Pro (2017) If you are running from Lion or Mountain, you need to upgrade to El Capitan first before you upgrade to macOS Catalina. The installer will let you know if your device is not compatible with macOS Catalina. Create a backup. Now that you are ready to upgrade to Catalina, it’s wise to make a backup before any upgrade. Apple plans to release macOS Catalina in the fall. Find out if your Mac is on the list of devices that fully support the new OS, or if you need to upgrade your hardware to run the latest version.

MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports)
MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)
MacBook Pro (16-inch, 2019)
MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports)
MacBook Pro (15-inch, 2019)
MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports)
MacBook Pro (15-inch, 2018)
MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports)
MacBook Pro (15-inch, 2017)
MacBook Pro (13-inch, 2017, Four Thunderbolt 3 ports)
MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)
MacBook Pro (15-inch, 2016)

MacBook Pro (13-inch, 2016, Four Thunderbolt 3 ports)
MacBook Pro (13-inch, 2016, Two Thunderbolt 3 ports)
MacBook Pro (Retina, 15-inch, Mid 2015)
MacBook Pro (Retina, 15-inch, Mid 2015)
MacBook Pro (Retina, 13-inch, Early 2015)
MacBook Pro (Retina, 15-inch, Mid 2014)
MacBook Pro (Retina, 13-inch, Mid 2014)
MacBook Pro (Retina, 15-inch, Late 2013)
MacBook Pro (Retina, 15-inch, Early 2013)
MacBook Pro (Retina, 13-inch, Late 2013)
MacBook Pro (Retina, 13-inch, Early 2013)
MacBook Pro (Retina, 15-inch, Mid 2012)
MacBook Pro (15-inch, Mid 2012)
MacBook Pro (Retina, 13-inch, Late 2012)
MacBook Pro (13-inch, Mid 2012)

MacBook Air

MacBook Air (Retina, 13-inch, 2020)
MacBook Air (Retina, 13-inch, 2019)
MacBook Air (Retina, 13-inch, 2018)
MacBook Air (13-inch, 2017)
MacBook Air (13-inch, Early 2015)
MacBook Air (11-inch, Early 2015)

MacBook Air (13-inch, Early 2014)
MacBook Air (11-inch, Early 2014)
MacBook Air (13-inch, Mid 2013)
MacBook Air (11-inch, Mid 2013)
MacBook Air (13-inch, Mid 2012)
MacBook Air (11-inch, Mid 2012)

MacBook

MacBook (Retina, 12-inch, 2017)
MacBook (Retina, 12-inch, Early 2016)

iMac Pro

iMac

iMac (Retina 5K, 27-inch, 2020)
iMac (Retina 5K, 27-inch, 2019)
iMac (Retina 4K, 21.5-inch, 2019)
iMac (Retina 5K, 27-inch, 2017)
iMac (Retina 4K, 21.5-inch, 2017)
iMac (21.5-inch, 2017)
iMac (Retina 5K, 27-inch, Late 2015)
iMac (Retina 4K, 21.5-inch, Late 2015)
iMac (21.5-inch, Late 2015)

iMac (Retina 5K, 27-inch, Mid 2015)
iMac (Retina 5K, 27-inch, Late 2014)
iMac (21.5-inch, Mid 2014)
iMac (27-inch, Late 2013)
iMac (21.5-inch, Late 2013)
iMac (27-inch, Late 2012)
iMac (21.5-inch, Late 2012)

Mac mini

Mac Pro

If you haven't updated to Catalina yet, read on to find out how to update to Catalina or Mojave from High Sierra, Sierra, El Capitan, Yosemite, or even older version of Mac OS X below.

Which Mac operating system is the best is a topic of numerous debates among Apple fans.

Since the mission of this blog is to refute myths and legends around Macs, it’s time for me to provide my 2 cents about the issue on hand. While everything below is just my opinion, as a long-time Mac user and veteran software engineer, I hope my opinion worth something.

The best Mac OS version is the one that your Mac is eligible to upgrade to. In 2021 it is macOS Big Sur. However, for users that need to run 32-bit apps on Mac, the best macOS is Mojave. Also, older Macs would benefit if upgraded at least to macOS Sierra for which Apple still releases security patches.

In the case of Catalina that includes all the old-style Mac Pro models, pre-'trash can'. If you want to run, but your Mac is older than 2013/2014, the new macOS just isn't for you, as far as.
NOTE: If your Mac came with macOS Catalina, you can restart your Mac while holding down Shift-Option-Command-R to enter Internet Recovery Mode and install the operating system that came with your Mac. Otherwise, follow the steps below to install Catalina back on your Mac. Connect your Mac to the internet via Wi-Fi or Ethernet.

How to Tell Which macOS You Are Running

To find out which macOS is currently running on your Mac, follow these steps:

Click on Apple logo in the top left corner of the menubar
In the dropdown click on the first item: About This Mac
The first line in the Overview tab is the name of the current OS.

What Version of OS Can My Mac Run?

Not all Macs can be upgraded to the latest OS version. For instance, old Macs powered by PowerPC CPUs cannot run OS intended for Intel-based computers. Also, some versions have hardware limitations.

For instance, Mojave cannot be installed on MacBook Pro earlier than Mid 2012 model.

Check below to know exactly what version of OS your Mac can run.

Which OS is Best for my Mac

Anytime someone asks me which OS is best for them I always suggested going with the latest. Things have changed recently, however.

Should I Upgrade to macOS Catalina or Big Sur?

While personally I like macOS Big Sur and have it installed on my MacBook Pro, it comes with serious breaking changes.

The first issue is compatibility.

Imac 2009 Install Catalina

Big Sur is a transition OS which is designed to help Apple to move from Intel processors to their own chips on ARM.

After I installed Big Sur on my MacBook Pro mid 2020 (pre-Silicon), most of my apps, including Microsoft Office, were working as expected.

However, my VMWare Fusion 11 does not start anymore, so I have to purchase a new license if I want to keep using it (or roll back to Catalina). Luckily, I took a full backup before the upgrade.

The second breaking issue is the lack of 32-bit app support.

macOS Catalina and Big Sur can only run 64-bit apps.

If you wondering whether you should upgrade to macOS Catalina or Big Sur, first verify that you don’t have any 32-bit apps. But first, take a back up, so you can go back in case something breaks after the upgrade.

For instance, I had to remove uTorrent after upgrade. And I didn’t know that uTorrent is 32-bit!

How to Know If App is 32-bit or 64-bit

To find out whether the app on your Mac is 32-bit or 64-bit follow these steps:

Click on Apple logo in the top left corner of the Mac screen
Click on About This Mac option
Click on System Report button in Overview tab (first one)
Scroll down to Software -> Applications
Find the app and check Kind

Which macOS Should I Use

If you have an older Mac which is not eligible to upgrade with some latest software

Imac 2009 Upgrade To Catalina