Tails 0.18 can install packages on the fly (The H)
Existing Tails users are also strongly urged to upgrade to Tails 0.18; the team lists security vulnerabilities discovered in the previous 0.17.2 release to reinforce that recommendation. Another new feature in the Debian-based distribution is support of obfs3 bridges when using the Tor network. Obfuscation bridges make it harder for the ISP to know a user is using the Tor network by disguising the protocol in use; obfs3 is the latest version of the protocol replacing obfs2 which no longer works in China."
