-Release 2.1
------------
-* Fixed Linux-related building.
-
-Release 2.0
------------
-* Added clients identification.
-* Simultaneous several clients support by server.
-* Per-client up/down scripts.
-
-Release 1.5
------------
-* Nonce obfuscation/encryption.
-
-Release 1.4
------------
-* Performance optimizations.
-
-Release 1.3
------------
-* Heartbeat feature.
-* Rehandshake feature.
-* up- and down- optinal scripts.
-
-Release 1.1
------------
-* FreeBSD support.
-
-Release 1.0
------------
-* Initial stable release.