+@node Release 7.1
+@section Release 7.1
+@itemize
+@item Fixed bug in client's identity generation and detection code:
+simultaneous clients may be incorrectly identified, preventing their
+connection establishing and allowing DPI to detect GoVPN packets.
+@end itemize
+
+@node Release 7.0
+@section Release 7.0
+@itemize
+@item (X)Salsa20 is replaced with ChaCha20. Theoretically it should be
+faster and more secure. Previous versions are not compatible with it!
+@item Ability to use TUN-interfaces under GNU/Linux. FreeBSD has already
+supported them without any modifications.
+@end itemize
+
+@node Release 6.0
+@section Release 6.0
+@itemize
+@item Argon2d is replaced with Balloon hashing. Found Argon2 libraries
+written on pure Go have various problems. Moreover Argon2i should be
+used instead, but it has some possible
+@url{http://eprint.iacr.org/2016/027, cryptographic defects}. So it is
+replaced with much more simpler (and seems even cryptographically
+better) @url{https://crypto.stanford.edu/balloon/, Balloon hashing}.
+@end itemize
+