Hi I am using Macbook MacBook Pro (13-inch, Late 2011) and what's the latest OS ? i couldn't use some of the features due to outdated OS

1.  Check compatibility

      To confirm compatibility before downloading, check the minimum requirements for

       macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite.

      You can also find compatibility information on the product-ID page for

       MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.    

      Applications compatibility: https://roaringapps.com

2   For older version of  macOS:

     Please read this section carefully

      Section: Download macOS

      https://support.apple.com/en-us/HT211683

     Install macOS upgrade.

     https://support.apple.com/en-us/HT201475

Hi,

Supported macOS is 10.7.2〜10.13.6.

Hello

I have a 2011 MBP too and have just upped it to 10.13.6 in two steps.

Which model do you have - Memory? CPU?

Colin