My MacBook Pro (mid 2009) is running 10.10.5, Trying to upgrade to 10.11 El Capitan.
The program I use frequently now says I must have 10.13 to operate correctly. I have read an old post that says by loading 10.11 and working up, I can end up with 10.13, When I try to download 10.11.1, it says I must first download El Capitan 10.11.0. Running the 10.11, installer goes through the steps and says it is downloading the complete pkg. After a few minutes, I then get the message that the download is complete. When I run a system report, it says I am still running 10.10.5. Suggestions welcome.
MacBook