Upgrade MAMP's phpMyAdmin
My MAMP version shipped with phpMyAdmin 3.3.9.2, while phpMyAdmin 3.4.10.1 was already available. Upgrading the bundled version turned out to be simple: download it and extract it to the right folder.
First, download the latest version from phpMyAdmin's download page.
If you use MAMP, back up the old files and extract the new files here: /Applications/MAMP/bin/phpMyAdmin.
Restart MAMP and open http://localhost/phpMyAdmin. You should see the upgraded phpMyAdmin interface.
For MAMP Pro, the phpMyAdmin files live here: /Library/Application Support/appsolute/MAMP PRO/phpMyAdmin.