How do I update a formula with Homebrew?

How do I update a formula?

I ran brew update. However, mongodb is still outdated according to brew outdated:

mongodb (1.4.3-x86_64 < 1.6.5-x86_64) 

6 Answers

First, update brew's internal list of formulae to the latest:

brew update 

To upgrade only the mongodb formula, use install:

brew install mongodb 

To upgrade all outdated formulae:

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You can update all outdated packages like so:

brew install `brew outdated` 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brew outdated | xargs brew install 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 If you want upgrade all of outdated formulas, you can use the command below.

brew outdated | xargs brew upgrade 

I prefer to upgrade all homebrew formulae and homebrew cask formulae.

I added a Bourne shell function to my environment for this one (I load a .bashrc)

function updatebrew() { set -x; brew update; brew cleanup; brew cask upgrade --greedy ) } 

• set -x for transparency: So that the terminal outputs whatever Homebrew is doing in the background.
• brew update to update homebrew formulas
• brew cleanup to remove any change left over after installations
• brew cask upgrade --greedy will install all casks; both those with versioning information and those without