Trillian for Linux Beta
Trillian for Linux is currently available as an early-access product for current Trillian Pro customers. The current beta build is (changelog) which was released on October 9, 2014. The beta version is not currently set up as a repository and must be downloaded manually.

Direct Downloads
Trillian 64-bit Debian package
Trillian 64-bit RPM package
Trillian 32-bit Debian package
Trillian 32-bit RPM package

Note: In-house Trillian Servers must be running Trillian Server 1.1 (currently in beta) for this version to connect.