Hi,
In August, I finished porting and testing the secure update from Tor Browser
to Tor Messenger. All changes are in the updater branch:
https://gitweb.torproject.org/tor-messenger-build.git/log/?h=updater
Based on the above changes, we tagged Tor Messenger v0.2.0b2, which will be
the first release with the secure updater.
--
Sukhbir