Yep, https. Look at the last two URLs at the very end of the file: https://github.com/gnachman/iTerm2/blob/master/plists/release-iTerm2.plist https://github.co

Yep, https. Look at the last two URLs at the very end of the file: https://github.com/gnachman/iTerm2/blob/master/plists/release-iTerm2.plist https://github.com/gnachman/iTerm2/blob/master/plists/releas... Likewise, all HTTPS here: http://iterm2.com/appcasts/testing3.xml http://iterm2.com/appcasts/testing3.xml If you're on Mac OS 10.11, we don't disable app transport security, so the OS prevents us from making HTTP requests at all.