Currently I have OS X EI capitan version 10.11.6 in my macbook pro. Now i can’t purchase anything from app store and can’t connect any devices because it shows me to update to os x 11.4 . But I can’t update to that version in my device . Other versions are not supported to my device. Now which version i have to update? What was the solution ?
What is the model year of your MacBook Pro?
The model year of a MacBook Pro is available at Apple menu > About This Mac.
An Early 2008 through mid 2009 MacBook Pro can be upgraded to El Capitan 10.11.6 but no later version. See: How to download and install macOS - Apple Support
A mid 2010 through late 2011 MacBook Pro can be upgraded to High Sierra 10.13.6 but no later version. See: How to download and install macOS - Apple Support
A mid 2012 through early 2013 MacBook Pro can be upgraded to Catalina 10.15.7 but no later. See: How to download and install macOS - Apple Support
A late 2013 and mid 2014 can be upgraded to the latest version of Big Sur macOS 11 but no later. See: How to download and install macOS - Apple Support
An early 2015 through 2016 MacBook Pro can be upgraded to the latest version of Monterey macOS 12. See: How to download and install macOS - Apple Support
A 2017 or later MacBook Pro can be upgraded to the current version of Ventura macOS 13. See: How to upgrade to macOS Ventura - Apple Support
What is the model year of your MacBook Pro?
The model year of a MacBook Pro is available at Apple menu > About This Mac.
An Early 2008 through mid 2009 MacBook Pro can be upgraded to El Capitan 10.11.6 but no later version. See: How to download and install macOS - Apple Support
A mid 2010 through late 2011 MacBook Pro can be upgraded to High Sierra 10.13.6 but no later version. See: How to download and install macOS - Apple Support
A mid 2012 through early 2013 MacBook Pro can be upgraded to Catalina 10.15.7 but no later. See: How to download and install macOS - Apple Support
A late 2013 and mid 2014 can be upgraded to the latest version of Big Sur macOS 11 but no later. See: How to download and install macOS - Apple Support
An early 2015 through 2016 MacBook Pro can be upgraded to the latest version of Monterey macOS 12. See: How to download and install macOS - Apple Support
A 2017 or later MacBook Pro can be upgraded to the current version of Ventura macOS 13. See: How to upgrade to macOS Ventura - Apple Support
By default, the Mac App Store only offers the latest version of macOS. It hides older versions. Ventura (13) is the current version. If your MacBook Pro is so old that it can run El Capitain, I believe it won't be able to run Ventura.
What is the exact model name in the About This Mac dialog in the Apple () menu? (Model name including year and time of year – no serial numbers). The hardware model and model year will determine whether, and how far, you can upgrade beyond El Capitan.
Once you know how far you can upgrade, you can choose from among compatible options here:
How to download and install macOS - Apple Support
Note that Catalina, Big Sur, or Monterey, those versions of macOS will not run 32-bit applications. If your MacBook Pro is recent enough to qualify for Big Sur or Monterey (which are among the "most recent three" and therefore more likely to support current commercial applications), what to do about any old non-built-in 32-bit applications you are running would be something to plan for before doing the upgrade.
Os update
