I am being prompted to install the 10.11.1 beta update, but considering the GM candidate is installed on my Mac's main disk, I don't think it's a good idea to do so. I had originally planned to test El Capitan on an external disk, but due to a lapse in concentration when I installed the public GM candidate when it was released, it was installed on the main disk instead. Thankfully it has been stable, and I've had no signifigant issues. I am wondering if I should opt out of the pre-release update seeds now, or wait until the official release date as originally planned. I am also wondering if I'll have to download the installer for the release version on the release date.