Update tries to install wrong version.
I need to fix my sister's macbook remotely.
She is not very computer literate so I wanted to do a dry run here.
A: Your download page does NOT tell you that downloading version 15 won't install on an older mac. (Machines concerned are running 10.10.4 TV 15 requires OS-X 10.13.) This is a bug.
B: If I try using "Check for Updates" from within my older version of TV, it ALSO will try to download version 15. This is a bug.
C: If I search the Downloads page for older versions, YOU DONT SAY WHICH WILL WORK ON WHICH OS's. This is bad website design.
Nowhere on your website can I find anything that details the tradeoffs of mis-matched versions -- whether they interoperate at all.
At one point you had a version of TV that didn't have to be installed. You could run it off a thumb drive. Is this still available?
How do I find out which version of TV a given OS will accept?
Are all versions of TV interoperable?
Are there performance penalties for using differing versions?