The biggest change in Tails 4.20 is the brand-new Tor Connection assistant that simplifies the way you connect to the Tor anonymous network from the Tails live system. The new Tor Connection assistant pops up immediately after connecting to a local network.
The advantages of the new Tor Connection wizard are many, mostly helping censored users, but it promises to better protect anyone who wants to remain unnoticed when using the Tor network, or those who want to connect to Tor using bridges, as well as first-time users.