Not sure you can do anything about this but an FYI in case others come looking:
brew update started responding with Error: Fetching /usr/local/Homebrew/Library/Taps/facebook/homebrew-fb failed! recently.
I believe this is down to the fact that it was trying to pull from the existing branch named master and that no longer exists, it's now called main.
brew update-reset fixes this:
==> Fetching /usr/local/Homebrew/Library/Taps/facebook/homebrew-fb...
From https://github.com/facebook/homebrew-fb
- [deleted] (none) -> origin/automated_fixup_code_of_conduct_file_exists
- [deleted] (none) -> origin/automated_fixup_contributing_file_exists
- [deleted] (none) -> origin/master
(refs/remotes/origin/HEAD has become dangling)
* [new branch] main -> origin/main
Note: this will destroy all your uncommitted or committed changes to local homebrew repositories (Shouldn't be an issue unless you author formula updates, etc)
This shouldn't affect new users of the tap since I assume it'd pickup branch main from the outset.