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Packages are installed according to their formulae, which live in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula .
The first step is to run brew update . It updates Homebrew code and the taps (a tap is a repository of programs managed by Homebrew). Homebrew Cask provides the sub-command brew cask update but it is just an alias of brew update . You can use any of them; brew update is preferred because it is shorter.
To upgrade just the MongoDB formula, the correct way is
brew install mongodb
If you want to upgrade all outdated formulae, simply do
brew upgrade
You can update all outdated packages like so:
brew install `brew outdated`
or
brew outdated | xargs brew install
or
brew upgrade
This is from the brew site..
for upgrading individual formula:
brew install formula-name && brew cleanup formula-name
You will first need to update the local formulas by doing
brew update
and then upgrade the package by doing
brew upgrade formula-name
An example would be if i wanted to upgrade mongodb, i would do something like this, assuming mongodb was already installed :
brew update && brew upgrade mongodb && brew cleanup mongodb
Well, I just did
brew install mongodb
and followed the instructions that were output to the STDOUT after it finished installing, and that seems to have worked just fine. I guess it kinda works just like make install and overwrites (upgrades) a previous install.
You can't use brew install to upgrade an installed formula. If you want upgrade all of outdated formulas, you can use the command below.
brew outdated | xargs brew upgrade
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