It is now September 18, 2025, three days after the release of macOS 26 (Tahoe). Due to a few legacy projects, I still need to use MySQL 5.7 in 2025.
Homebrew has long since dropped support for MySQL 5.7. The old method of installing via brew tap homebrew/core --force and then modifying [email protected] no longer works, and brew edit [email protected] is also broken.
Thanks to ferrucc-io's reply, I refined and tested the steps myself and got MySQL 5.7.44 up and running on macOS 26.
For anyone who runs into the same issue, I’m documenting here：
brew tap homebrew/core --force
curl -fL "https://raw.githubusercontent.com/Homebrew/homebrew-core/6c907880b95a3702348c1fcce1c661fcc03336e5/Formula/m/mysql%405.7.rb" -o "/opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/m/[email protected]"
sed -i '' '/disable! date: "2024-08-01", because: :unsupported/d' /opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/m/[email protected]
curl -fL "https://raw.githubusercontent.com/Homebrew/homebrew-core/6c907880b95a3702348c1fcce1c661fcc03336e5/Formula/o/openssl%401.1.rb" -o "/opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/o/[email protected]"
sed -i '' '/disable! date: "2024-10-24", because: :unsupported/d' /opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/o/[email protected]
brew tap-new local/old-openssl
cp /opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/o/[email protected] \
$(brew --repository local/old-openssl)/Formula/[email protected]
brew install local/old-openssl/[email protected]
brew tap-new local/old-mysql
cp /opt/homebrew/Library/Taps/homebrew/homebrew-core/Formula/m/[email protected] \
$(brew --repository local/old-mysql)/Formula/[email protected]
brew install local/old-mysql/[email protected]
echo 'export PATH="/opt/homebrew/opt/[email protected]/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc
brew services start local/old-mysql/[email protected]
mysql_secure_installation