I am running version 2.0.20.1. Everytime I open sourcetree a prompt appears telling me a new update "2.0.20.1" is available and if I want to update.
It doesn't matter if I press yes or no. It will continue prompting me everytime I open the application.
I am running on Window 10 x64 usually on an account without local admin priveleges.
edit: nevermind. After a few hours of being open a prompt appeared saying it successfully updated and to restart sourcetree. Odd, but at least the problem went away.