- This commit drops support for mavericks: https://github.com/Homebrew/install/commit/4016e8675278dc7d5633179caf5507020091762b
- So you could take the parent commit: https://github.com/Homebrew/install/commit/4432ed3d3951613a10aa7180a384724ebea4314d
- Take its install.sh
- And plug that into the command:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/4432ed3d3951613a10aa7180a384724ebea4314d/install.sh)"