1. Download MAMP PRO 2.0 here: http://www.mamp.info/en/downloads/index.html
2. Backup your old MAMP and MAMP PRO data (just for security reasons)
3. Open the Installer and follow the instructions.
You don´t have to remove your old version of MAMP & MAMP PRO. But as always, we would suggest to backup both.
If everything goes well, your projects and preferences will automatically be restored by the installer of MAMP PRO 2.0.
Some thoughts on recent events
8 hours ago