Upgrading from OS X El Capitan to macOS High Sierra
I'm in the process of planning an upgrade from OS X El Capitan to macOS High Sierra, and I'm using things like Homebrew, Composer, Elasticsearch, and — by extension — Java.
I'm using MAMP Pro with the files stored in: /Library/WebServer/Documents/.
I need to know if these things will remain intact after the upgrade, or whether I have to install them again afterwards?
Solution 1:
All the software installed in macOS (along with the ones you mentioned) remain intact between OS upgrades.
However, it is advisable to keep an up-to-date backup before performing the upgrade.