What version of mothur?

What is the best version of mothur to download for a Mac laptop at version 10.10.5? I downloaded 1.35.1 but it’s missing a lot of features that are needed in the current MiSeq-SOP. And no, I can’t update my laptop, it does not give me the option to update the software.

If you can’t get a new laptop, then I’d suggest using it as a terminal to log into an AWS instance to analyze your data…