You can improve music listening and buying experience on your MacBook by updating iTunes at regular interval. Whenever apple rolls out update “iTunes Update Available” notification appears on your MacBook. In case, you have missed to click on that notification to update the iTunes version and still want to update iTunes on Mac, just follow these easy steps:
Step 1: Click on iTunes option. iTunes option is shown in the form of musical note on your MacBook. If a pop screen shows up and ask you if you'd like to download the latest version of iTunes, click "Download iTunes.”
Step 2: On the top left of iTunes toolbar you will find an “iTunes” option. Now click on "iTunes" Option and "Check for Updates" If update is available it will displays the version of update. Click "Update" and Itunes will start downloading.
Step 3: Now, wait for the download to finish. Restart your MacBook after update is completed.
It is generally recommend updating your iTunes at regular interval in order to enjoy advance features of iTunes.