other important releases.
1. Tor Browser 5.0 stable https://www.torproject.org/projects/torbrowser.html.en#downloads and 5.5a1 (alpha) https://www.torproject.org/projects/torbrowser.html.en#downloads-alpha; https://blog.torproject.org/blog/tor-browser-55a1-released 
2. Tails 1.5 https://tails.boum.org/download/index.en.html; https://git-tails.immerda.ch/tails/plain/debian/changelog