How to make zsh autocompletion understand freshly installed programs?

Question

zsh

Hello.
For once I rearranged my OSX, and install zsh from homebrew accordingly. Put oh-my-zsh on top, and made a fresh setup.
But I ran into the following problem: when installing a new program, their homebrew does not see the program until I restart the terminal. That is, from $ PATH it launches fine, but it does not see auto-completion. What did I forget to do?
PS A lot of time ago, this problem was somehow easily fixed, but I don’t remember how at all. Either Google doesn't help...or my question is wrong.

Answer 1

Add to your ~/.zshrc :
zstyle ':completion:*' rehash true