This is welcome news. This means I no longer have to track and manually renew my Let's Encrypt certificates for my websites.<p>I also see it as a way to incentivize folks to use GAE (not only are you getting free quotas to run your app, you also don't have to spend money to buy certificates and don't have to worry about installing or renewing them).<p>Finally, I also see it as another way of pushing for the uptake of SSL. With GAE doing this, other hosting services might also start offering something similar or close to it which would then beg the question - why is your site not using SSL.