To download Magento Community Edition ver 1.9.2.0, you need to login to magentocommerce.com.
I can't login, because I don't know my password, and I can't retrieve my password, because the password reset email never reaches my Gmail account (not in spam either). When I ask Magento support for help, they say there is no such account corresponding to my email, but when I try to register, it says my email is already registered. I haven't heard from them for about 10 days.
Long story short, is this https://github.com/OpenMage/magento-mirror a reliable copy of Magento 1.9.2?