How to upgrade OS X Sierra 10.12.6 to 10.13? I have a 15 inch MacBook Pro 2011 year. Thanks.
I cannot install turbotax 2019 on my MacBook Pro without upgrading. Is there anyway to upgrade my 2011/2012 computer or do I need to by newer hardware? The current version is OS X Sierra 10.12.6 and turbotax is requiring 10.13. Thanks.
MacBook Pro 15″, macOS 10.12